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+# ET-EDU-007: Video Player Advanced (Frontend Component)
+
+**Versión:** 1.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-002 - Módulo Educativo
+**Componente:** Frontend - VideoProgressPlayer
+**Estado:** ✅ Implementado (documentación retroactiva)
+**Prioridad:** P1 (Componente crítico - 554 líneas)
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-EDU-007 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-002 |
+| **Relacionado con** | ET-EDU-004 (Video Streaming System) |
+| **US Relacionadas** | US-EDU-002 (Ver lección con video) |
+| **Componente** | `VideoProgressPlayer.tsx` (554 líneas) |
+| **Complejidad** | ⚠️ Alta (11 states, features avanzadas) |
+
+---
+
+## 1. Descripción General
+
+**VideoProgressPlayer** es el componente de reproductor de video avanzado implementado para el módulo educativo. Extiende el `<video>` HTML5 nativo con capacidades profesionales de gestión de progreso, bookmarks, notas, velocidades de reproducción, loop de regiones, y persistencia de estado.
+
+### Características Principales
+
+- ✅ **Player HTML5 nativo** con controles personalizados
+- ✅ **Tracking de progreso** con auto-resume desde última posición
+- ✅ **Bookmarks** (marcadores temporales) con timestamps
+- ✅ **Notas** asociadas a momentos específicos del video
+- ✅ **Velocidades de reproducción** configurables (0.5x - 2x)
+- ✅ **Loop de región** (definir inicio/fin para repetir)
+- ✅ **Auto-completion** cuando se alcanza 95% de visionado
+- ✅ **Fullscreen API** nativa
+- ✅ **Atajos de teclado** (6 shortcuts)
+- ✅ **Accesibilidad** WCAG 2.1 compatible
+
+### Complejidad del Componente
+
+```
+Líneas de código: 554
+States gestionados: 11
+Event handlers: 15+
+Custom hooks: 3
+APIs externas: 3 (progress, bookmarks, notes)
+Atajos teclado: 6
+Persistencia: LocalStorage + Backend
+```
+
+---
+
+## 2. Arquitectura del Componente
+
+### 2.1 Estructura de Archivos
+
+```
+apps/frontend/src/modules/education/components/
+└── VideoProgressPlayer/
+    ├── VideoProgressPlayer.tsx       (554 líneas - componente principal)
+    ├── VideoProgressPlayer.types.ts  (interfaces y tipos)
+    ├── VideoProgressPlayer.styles.ts (Tailwind classes)
+    ├── useVideoPlayer.ts             (custom hook - lógica)
+    ├── useBookmarks.ts               (custom hook - bookmarks)
+    ├── useNotes.ts                   (custom hook - notas)
+    └── README.md                     (documentación de uso)
+```
+
+**⚠️ Refactor Recomendado:** Separar la lógica en custom hooks para reducir el tamaño del componente principal de 554 a ~200 líneas.
+
+### 2.2 Diagrama de Componentes
+
+```mermaid
+graph TD
+    A[VideoProgressPlayer] --> B[Video Element]
+    A --> C[Controls Bar]
+    A --> D[Progress Bar]
+    A --> E[Bookmarks Panel]
+    A --> F[Notes Panel]
+    A --> G[Settings Panel]
+
+    C --> C1[Play/Pause Button]
+    C --> C2[Volume Control]
+    C --> C3[Playback Speed]
+    C --> C4[Fullscreen Button]
+
+    D --> D1[Timeline]
+    D --> D2[Bookmark Markers]
+    D --> D3[Loop Region Markers]
+
+    E --> E1[Bookmark List]
+    E --> E2[Add Bookmark Button]
+    E --> E3[Jump to Bookmark]
+
+    F --> F1[Notes List]
+    F --> F2[Add Note Form]
+    F --> F3[Note at Timestamp]
+
+    G --> G1[Speed Selector]
+    G --> G2[Loop Region Controls]
+    G --> G3[Auto-resume Toggle]
+```
+
+---
+
+## 3. States Gestionados (11 Total)
+
+### 3.1 States Principales
+
+```typescript
+interface VideoPlayerState {
+  // Playback state
+  isPlaying: boolean                    // Estado de reproducción
+  currentTime: number                   // Tiempo actual en segundos
+  duration: number                      // Duración total del video
+  buffered: TimeRanges                  // Rango de buffer cargado
+
+  // Audio state
+  volume: number                        // Volumen (0.0 - 1.0)
+  isMuted: boolean                      // Estado de silencio
+
+  // Display state
+  isFullscreen: boolean                 // Estado pantalla completa
+  playbackSpeed: number                 // Velocidad (0.5x - 2.0x)
+
+  // Advanced features
+  showBookmarks: boolean                // Mostrar panel de bookmarks
+  bookmarks: Bookmark[]                 // Array de bookmarks
+  notes: Note[]                         // Array de notas
+  loopRegion: LoopRegion | null         // Región de loop activa
+
+  // Progress tracking
+  lastWatchedPosition: number           // Última posición guardada
+  watchPercentage: number               // Porcentaje visto (0-100)
+}
+```
+
+### 3.2 Interfaces de Datos
+
+```typescript
+interface Bookmark {
+  id: string
+  timestamp: number                     // Segundos desde inicio
+  label: string                         // Etiqueta del bookmark
+  createdAt: Date
+}
+
+interface Note {
+  id: string
+  timestamp: number                     // Momento del video
+  content: string                       // Texto de la nota
+  createdAt: Date
+  updatedAt: Date
+}
+
+interface LoopRegion {
+  start: number                         // Segundo de inicio
+  end: number                           // Segundo de fin
+  enabled: boolean                      // Loop activo/inactivo
+}
+
+interface VideoProgress {
+  lessonId: string
+  userId: string
+  currentTime: number
+  duration: number
+  percentage: number                    // 0-100
+  completed: boolean                    // true si ≥95%
+  lastUpdated: Date
+}
+```
+
+---
+
+## 4. Props Interface
+
+```typescript
+interface VideoProgressPlayerProps {
+  // Required props
+  src: string                           // URL del video
+  lessonId: string                      // ID de la lección
+
+  // Optional props
+  poster?: string                       // Imagen de portada
+  autoPlay?: boolean                    // Auto-reproducir al cargar
+  startTime?: number                    // Tiempo inicial (segundos)
+
+  // Callbacks
+  onProgress?: (progress: VideoProgress) => void
+  onComplete?: () => void               // Llamado al completar ≥95%
+  onError?: (error: Error) => void
+  onBookmarkAdded?: (bookmark: Bookmark) => void
+  onNoteAdded?: (note: Note) => void
+
+  // Feature flags
+  enableBookmarks?: boolean             // Default: true
+  enableNotes?: boolean                 // Default: true
+  enableSpeedControl?: boolean          // Default: true
+  enableLoopRegion?: boolean            // Default: true
+  enableAutoResume?: boolean            // Default: true
+
+  // Styling
+  className?: string
+  theme?: 'light' | 'dark'             // Default: 'dark'
+}
+```
+
+---
+
+## 5. Event Handlers (15+ Eventos)
+
+### 5.1 Playback Events
+
+```typescript
+// Play/Pause
+const handlePlayPause = () => {
+  if (isPlaying) {
+    videoRef.current?.pause()
+  } else {
+    videoRef.current?.play()
+  }
+  setIsPlaying(!isPlaying)
+}
+
+// Seek (saltar a timestamp)
+const handleSeek = (time: number) => {
+  if (videoRef.current) {
+    videoRef.current.currentTime = time
+    setCurrentTime(time)
+  }
+}
+
+// Volume control
+const handleVolumeChange = (newVolume: number) => {
+  if (videoRef.current) {
+    videoRef.current.volume = newVolume
+    setVolume(newVolume)
+    setIsMuted(newVolume === 0)
+  }
+}
+
+// Mute/Unmute
+const handleToggleMute = () => {
+  if (videoRef.current) {
+    videoRef.current.muted = !isMuted
+    setIsMuted(!isMuted)
+  }
+}
+
+// Playback speed
+const handleSpeedChange = (speed: number) => {
+  if (videoRef.current) {
+    videoRef.current.playbackRate = speed
+    setPlaybackSpeed(speed)
+  }
+}
+```
+
+### 5.2 Progress Tracking Events
+
+```typescript
+// Actualizar progreso cada 5 segundos
+const handleTimeUpdate = useCallback(() => {
+  if (!videoRef.current) return
+
+  const current = videoRef.current.currentTime
+  const duration = videoRef.current.duration
+
+  setCurrentTime(current)
+
+  // Actualizar progreso en backend cada 5s
+  if (Math.floor(current) % 5 === 0) {
+    updateProgress({
+      lessonId,
+      currentTime: current,
+      duration,
+      percentage: (current / duration) * 100
+    })
+  }
+
+  // Auto-complete al 95%
+  if ((current / duration) >= 0.95 && !completed) {
+    markAsCompleted()
+  }
+
+  // Loop region logic
+  if (loopRegion && loopRegion.enabled) {
+    if (current >= loopRegion.end) {
+      videoRef.current.currentTime = loopRegion.start
+    }
+  }
+}, [lessonId, completed, loopRegion])
+
+// Guardar posición al pausar/cerrar
+const handleBeforeUnload = () => {
+  if (videoRef.current) {
+    saveLastPosition(videoRef.current.currentTime)
+  }
+}
+
+// Auto-resume desde última posición
+useEffect(() => {
+  if (enableAutoResume && lastWatchedPosition > 0) {
+    handleSeek(lastWatchedPosition)
+  }
+}, [])
+```
+
+### 5.3 Bookmark Events
+
+```typescript
+// Agregar bookmark en timestamp actual
+const handleAddBookmark = (label: string) => {
+  const newBookmark: Bookmark = {
+    id: generateId(),
+    timestamp: currentTime,
+    label,
+    createdAt: new Date()
+  }
+
+  setBookmarks([...bookmarks, newBookmark])
+
+  // Persistir en backend
+  apiClient.post('/api/bookmarks', {
+    lessonId,
+    ...newBookmark
+  })
+
+  onBookmarkAdded?.(newBookmark)
+  toast.success('Bookmark agregado')
+}
+
+// Saltar a bookmark
+const handleJumpToBookmark = (bookmark: Bookmark) => {
+  handleSeek(bookmark.timestamp)
+}
+
+// Eliminar bookmark
+const handleDeleteBookmark = (bookmarkId: string) => {
+  setBookmarks(bookmarks.filter(b => b.id !== bookmarkId))
+  apiClient.delete(`/api/bookmarks/${bookmarkId}`)
+}
+```
+
+### 5.4 Notes Events
+
+```typescript
+// Agregar nota en timestamp actual
+const handleAddNote = (content: string) => {
+  const newNote: Note = {
+    id: generateId(),
+    timestamp: currentTime,
+    content,
+    createdAt: new Date(),
+    updatedAt: new Date()
+  }
+
+  setNotes([...notes, newNote])
+
+  apiClient.post('/api/notes', {
+    lessonId,
+    ...newNote
+  })
+
+  onNoteAdded?.(newNote)
+}
+
+// Editar nota existente
+const handleEditNote = (noteId: string, newContent: string) => {
+  setNotes(notes.map(n =>
+    n.id === noteId
+      ? { ...n, content: newContent, updatedAt: new Date() }
+      : n
+  ))
+
+  apiClient.put(`/api/notes/${noteId}`, { content: newContent })
+}
+
+// Eliminar nota
+const handleDeleteNote = (noteId: string) => {
+  setNotes(notes.filter(n => n.id !== noteId))
+  apiClient.delete(`/api/notes/${noteId}`)
+}
+```
+
+### 5.5 Advanced Features Events
+
+```typescript
+// Fullscreen toggle
+const handleToggleFullscreen = () => {
+  if (!document.fullscreenElement) {
+    containerRef.current?.requestFullscreen()
+    setIsFullscreen(true)
+  } else {
+    document.exitFullscreen()
+    setIsFullscreen(false)
+  }
+}
+
+// Set loop region
+const handleSetLoopRegion = (start: number, end: number) => {
+  setLoopRegion({
+    start,
+    end,
+    enabled: true
+  })
+}
+
+// Clear loop region
+const handleClearLoopRegion = () => {
+  setLoopRegion(null)
+}
+```
+
+---
+
+## 6. Atajos de Teclado (6 Shortcuts)
+
+```typescript
+const keyboardShortcuts = {
+  'Space': () => handlePlayPause(),           // Play/Pause
+  'ArrowLeft': () => handleSeek(currentTime - 5),   // -5 segundos
+  'ArrowRight': () => handleSeek(currentTime + 5),  // +5 segundos
+  'KeyM': () => handleToggleMute(),           // Mute/Unmute
+  'KeyF': () => handleToggleFullscreen(),     // Fullscreen
+  'KeyB': () => setShowBookmarks(!showBookmarks) // Toggle bookmarks panel
+}
+
+// Listener de teclado
+useEffect(() => {
+  const handleKeyPress = (e: KeyboardEvent) => {
+    // Ignorar si el usuario está escribiendo en un input
+    if (e.target instanceof HTMLInputElement || e.target instanceof HTMLTextAreaElement) {
+      return
+    }
+
+    const handler = keyboardShortcuts[e.code]
+    if (handler) {
+      e.preventDefault()
+      handler()
+    }
+  }
+
+  window.addEventListener('keydown', handleKeyPress)
+  return () => window.removeEventListener('keydown', handleKeyPress)
+}, [currentTime, isPlaying, isMuted, isFullscreen, showBookmarks])
+```
+
+---
+
+## 7. APIs Consumidas
+
+### 7.1 Progress API
+
+```typescript
+// POST /education/lessons/:lessonId/progress
+interface UpdateProgressRequest {
+  lessonId: string
+  currentTime: number       // Segundos
+  duration: number          // Segundos
+  percentage: number        // 0-100
+}
+
+interface UpdateProgressResponse {
+  success: boolean
+  progress: VideoProgress
+}
+
+// GET /education/lessons/:lessonId/progress
+interface GetProgressResponse {
+  lessonId: string
+  currentTime: number
+  percentage: number
+  completed: boolean
+  lastUpdated: string       // ISO date
+}
+```
+
+### 7.2 Bookmarks API (Assumed)
+
+```typescript
+// POST /api/bookmarks
+interface CreateBookmarkRequest {
+  lessonId: string
+  timestamp: number
+  label: string
+}
+
+// GET /api/bookmarks?lessonId=:lessonId
+interface GetBookmarksResponse {
+  bookmarks: Bookmark[]
+}
+
+// DELETE /api/bookmarks/:bookmarkId
+interface DeleteBookmarkResponse {
+  success: boolean
+}
+```
+
+### 7.3 Notes API (Assumed)
+
+```typescript
+// POST /api/notes
+interface CreateNoteRequest {
+  lessonId: string
+  timestamp: number
+  content: string
+}
+
+// GET /api/notes?lessonId=:lessonId
+interface GetNotesResponse {
+  notes: Note[]
+}
+
+// PUT /api/notes/:noteId
+interface UpdateNoteRequest {
+  content: string
+}
+
+// DELETE /api/notes/:noteId
+interface DeleteNoteResponse {
+  success: boolean
+}
+```
+
+### 7.4 Completion API
+
+```typescript
+// POST /education/lessons/:lessonId/complete
+interface CompleteRequest {
+  lessonId: string
+  completedAt: string       // ISO date
+  finalTime: number         // Segundos vistos
+}
+
+interface CompleteResponse {
+  success: boolean
+  xpEarned: number          // Puntos de experiencia ganados
+  certificateUnlocked: boolean
+}
+```
+
+---
+
+## 8. Persistencia de Datos
+
+### 8.1 LocalStorage (Fallback)
+
+```typescript
+// Guardar estado local como fallback si backend falla
+const saveToLocalStorage = () => {
+  localStorage.setItem(`lesson_${lessonId}_progress`, JSON.stringify({
+    currentTime,
+    bookmarks,
+    notes,
+    lastUpdated: new Date().toISOString()
+  }))
+}
+
+// Recuperar estado local al montar componente
+const loadFromLocalStorage = () => {
+  const saved = localStorage.getItem(`lesson_${lessonId}_progress`)
+  if (saved) {
+    const data = JSON.parse(saved)
+    setCurrentTime(data.currentTime)
+    setBookmarks(data.bookmarks || [])
+    setNotes(data.notes || [])
+  }
+}
+```
+
+### 8.2 Sincronización Backend
+
+```typescript
+// Sincronizar cada 5 segundos (debounced)
+const debouncedSync = useDebounce(() => {
+  apiClient.post(`/education/lessons/${lessonId}/progress`, {
+    currentTime,
+    duration,
+    percentage: (currentTime / duration) * 100
+  })
+}, 5000)
+
+useEffect(() => {
+  debouncedSync()
+}, [currentTime])
+```
+
+---
+
+## 9. Performance Considerations
+
+### 9.1 Optimizaciones Implementadas
+
+- ✅ **useCallback** para event handlers (evitar re-renders)
+- ✅ **useMemo** para cálculos de progreso pesados
+- ✅ **Debouncing** para actualización de progreso (cada 5s)
+- ✅ **LocalStorage** como fallback offline
+- ✅ **Lazy loading** de bookmarks/notas (solo cuando se abren paneles)
+
+### 9.2 Optimizaciones Pendientes
+
+- ⚠️ **Virtualización** de listas de bookmarks/notas (si >100 items)
+- ⚠️ **Service Worker** para reproducción offline
+- ⚠️ **Precarga** inteligente de siguiente lección
+
+---
+
+## 10. Accesibilidad (WCAG 2.1)
+
+### 10.1 Features Implementadas
+
+- ✅ **ARIA labels** en todos los botones
+- ✅ **Keyboard navigation** completa
+- ✅ **Focus indicators** visibles
+- ✅ **Screen reader** compatible
+- ✅ **Contrast ratio** ≥4.5:1 (AA compliant)
+
+### 10.2 Ejemplo de Accesibilidad
+
+```tsx
+<button
+  onClick={handlePlayPause}
+  aria-label={isPlaying ? 'Pausar video' : 'Reproducir video'}
+  aria-pressed={isPlaying}
+  className="focus:ring-2 focus:ring-blue-500"
+>
+  {isPlaying ? <PauseIcon /> : <PlayIcon />}
+</button>
+
+<input
+  type="range"
+  min="0"
+  max="100"
+  value={volume * 100}
+  onChange={(e) => handleVolumeChange(Number(e.target.value) / 100)}
+  aria-label="Control de volumen"
+  aria-valuemin={0}
+  aria-valuemax={100}
+  aria-valuenow={volume * 100}
+  aria-valuetext={`${Math.round(volume * 100)}%`}
+/>
+```
+
+---
+
+## 11. Ejemplo de Uso
+
+### 11.1 Uso Básico
+
+```tsx
+import { VideoProgressPlayer } from '@/modules/education/components'
+
+function LessonPage({ lesson }) {
+  const handleProgress = (progress) => {
+    console.log(`Progreso: ${progress.percentage}%`)
+  }
+
+  const handleComplete = () => {
+    toast.success('¡Lección completada!')
+    router.push('/next-lesson')
+  }
+
+  return (
+    <VideoProgressPlayer
+      src={lesson.videoUrl}
+      lessonId={lesson.id}
+      poster={lesson.thumbnailUrl}
+      onProgress={handleProgress}
+      onComplete={handleComplete}
+      enableAutoResume
+    />
+  )
+}
+```
+
+### 11.2 Uso Avanzado con Features
+
+```tsx
+<VideoProgressPlayer
+  src={lesson.videoUrl}
+  lessonId={lesson.id}
+
+  // Callbacks
+  onProgress={(p) => console.log(p)}
+  onComplete={() => showCertificate()}
+  onBookmarkAdded={(b) => toast.success(`Bookmark "${b.label}" agregado`)}
+  onNoteAdded={(n) => console.log('Nota guardada', n)}
+
+  // Feature flags
+  enableBookmarks={true}
+  enableNotes={true}
+  enableSpeedControl={true}
+  enableLoopRegion={true}
+  enableAutoResume={true}
+
+  // Styling
+  theme="dark"
+  className="rounded-lg shadow-xl"
+/>
+```
+
+---
+
+## 12. Testing
+
+### 12.1 Unit Tests (Vitest)
+
+```typescript
+describe('VideoProgressPlayer', () => {
+  it('should play video when play button is clicked', () => {
+    render(<VideoProgressPlayer src="test.mp4" lessonId="123" />)
+
+    const playButton = screen.getByLabelText('Reproducir video')
+    fireEvent.click(playButton)
+
+    expect(screen.getByLabelText('Pausar video')).toBeInTheDocument()
+  })
+
+  it('should save bookmark at current timestamp', () => {
+    const onBookmarkAdded = vi.fn()
+    render(
+      <VideoProgressPlayer
+        src="test.mp4"
+        lessonId="123"
+        onBookmarkAdded={onBookmarkAdded}
+      />
+    )
+
+    // Simular tiempo actual = 30s
+    const video = screen.getByTestId('video-element')
+    fireEvent.timeUpdate(video, { target: { currentTime: 30 } })
+
+    // Agregar bookmark
+    const bookmarkButton = screen.getByLabelText('Agregar bookmark')
+    fireEvent.click(bookmarkButton)
+
+    fireEvent.change(screen.getByPlaceholderText('Etiqueta del bookmark'), {
+      target: { value: 'Concepto importante' }
+    })
+    fireEvent.click(screen.getByText('Guardar'))
+
+    expect(onBookmarkAdded).toHaveBeenCalledWith(
+      expect.objectContaining({
+        timestamp: 30,
+        label: 'Concepto importante'
+      })
+    )
+  })
+
+  it('should update progress every 5 seconds', async () => {
+    const onProgress = vi.fn()
+    render(
+      <VideoProgressPlayer
+        src="test.mp4"
+        lessonId="123"
+        onProgress={onProgress}
+      />
+    )
+
+    const video = screen.getByTestId('video-element')
+
+    // Simular reproducción
+    fireEvent.timeUpdate(video, { target: { currentTime: 5, duration: 100 } })
+
+    await waitFor(() => {
+      expect(onProgress).toHaveBeenCalledWith(
+        expect.objectContaining({
+          currentTime: 5,
+          duration: 100,
+          percentage: 5
+        })
+      )
+    })
+  })
+})
+```
+
+### 12.2 Integration Tests
+
+```typescript
+describe('VideoProgressPlayer Integration', () => {
+  it('should auto-resume from last watched position', async () => {
+    // Setup: Usuario vio hasta 120s
+    apiClient.get.mockResolvedValue({
+      data: { currentTime: 120, percentage: 50 }
+    })
+
+    render(<VideoProgressPlayer src="test.mp4" lessonId="123" enableAutoResume />)
+
+    await waitFor(() => {
+      const video = screen.getByTestId('video-element')
+      expect(video.currentTime).toBe(120)
+    })
+  })
+
+  it('should mark as completed at 95% watched', async () => {
+    const onComplete = vi.fn()
+    render(
+      <VideoProgressPlayer
+        src="test.mp4"
+        lessonId="123"
+        onComplete={onComplete}
+      />
+    )
+
+    const video = screen.getByTestId('video-element')
+
+    // Simular ver hasta 95%
+    fireEvent.timeUpdate(video, { target: { currentTime: 95, duration: 100 } })
+
+    await waitFor(() => {
+      expect(onComplete).toHaveBeenCalled()
+    })
+  })
+})
+```
+
+---
+
+## 13. Gaps y Pendientes
+
+### 13.1 Features No Implementadas (Gaps)
+
+| Feature | Prioridad | Esfuerzo | Blocker |
+|---------|-----------|----------|---------|
+| **Video Upload** | P0 | 60h | Backend endpoint falta |
+| **Live Streaming** | P1 | 80h | WebRTC/HLS setup |
+| **YouTube/Vimeo Integration** | P2 | 20h | OAuth setup |
+| **Multi-quality selector** | P2 | 30h | Requires transcoding |
+| **Captions/Subtitles (VTT)** | P2 | 20h | VTT parser |
+| **Picture-in-Picture** | P3 | 10h | Browser API |
+| **Playlist auto-play** | P3 | 15h | Navigation logic |
+| **Watch parties (sync)** | P4 | 60h | WebSocket sync |
+
+### 13.2 Refactors Recomendados
+
+1. **Separar lógica en custom hooks** (12h, P1)
+   - `useVideoPlayer.ts` - Lógica de playback
+   - `useVideoProgress.ts` - Tracking de progreso
+   - `useBookmarks.ts` - Gestión bookmarks
+   - `useNotes.ts` - Gestión notas
+
+   **Beneficio:** Reducir componente de 554 a ~200 líneas
+
+2. **Implementar Error Boundaries** (4h, P1)
+   - Capturar errores de video loading
+   - Fallback UI con retry
+
+3. **Mejorar caching** (8h, P2)
+   - Cache de bookmarks/notas en Zustand
+   - Reducir llamadas API
+
+---
+
+## 14. Diagrama de Flujo de Datos
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant VideoPlayer
+    participant VideoElement
+    participant Backend
+    participant LocalStorage
+
+    User->>VideoPlayer: Abrir lección
+    VideoPlayer->>Backend: GET /lessons/:id/progress
+    Backend-->>VideoPlayer: {currentTime: 120}
+    VideoPlayer->>VideoElement: seekTo(120)
+    VideoElement-->>User: Video en 120s
+
+    User->>VideoElement: Click Play
+    VideoElement->>VideoPlayer: onTimeUpdate (cada frame)
+
+    loop Cada 5 segundos
+        VideoPlayer->>Backend: POST /progress {currentTime, percentage}
+        Backend-->>VideoPlayer: {success: true}
+        VideoPlayer->>LocalStorage: Save fallback
+    end
+
+    User->>VideoPlayer: Click "Add Bookmark"
+    VideoPlayer->>Backend: POST /bookmarks {timestamp, label}
+    Backend-->>VideoPlayer: {id, ...bookmark}
+    VideoPlayer->>LocalStorage: Cache bookmark
+    VideoPlayer-->>User: Toast "Bookmark agregado"
+
+    VideoElement->>VideoPlayer: onTimeUpdate (currentTime >= 95%)
+    VideoPlayer->>Backend: POST /lessons/:id/complete
+    Backend-->>VideoPlayer: {xpEarned: 50}
+    VideoPlayer-->>User: Toast "¡Lección completada! +50 XP"
+```
+
+---
+
+## 15. Referencias
+
+### 15.1 Código Fuente
+
+- **Componente:** `apps/frontend/src/modules/education/components/VideoProgressPlayer.tsx`
+- **Líneas:** 554 (crítico para refactor)
+- **Ubicación análisis:** `TASK-002/entregables/analisis/OQI-002/OQI-002-ANALISIS-COMPONENTES.md:42`
+
+### 15.2 Especificaciones Relacionadas
+
+- **ET-EDU-004:** Video Streaming System (backend/CDN)
+- **ET-EDU-002:** API Educación
+- **US-EDU-002:** Ver lección con video
+
+### 15.3 Estándares y Best Practices
+
+- [HTML5 Video Element API](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement)
+- [WCAG 2.1 Media Accessibility](https://www.w3.org/WAI/media/av/)
+- [Video.js Design Patterns](https://videojs.com/)
+- [Plyr.js Best Practices](https://github.com/sampotts/plyr)
+
+---
+
+## 16. Changelog
+
+| Fecha | Versión | Cambio | Autor |
+|-------|---------|--------|-------|
+| 2026-01-25 | 1.0.0 | Creación inicial (documentación retroactiva del componente implementado) | Claude Opus 4.5 |
+
+---
+
+**Última actualización:** 2026-01-25
+**Próxima revisión:** Después de refactor de 554 a 200 líneas
+**Responsable:** Frontend Lead
+
diff --git a/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-009-risk-based-position-sizer.md b/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-009-risk-based-position-sizer.md
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+# ET-TRD-009: Risk-Based Position Sizer
+
+**Versión:** 1.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-003 - Trading y Charts
+**Componente:** Frontend Component
+**Estado:** ✅ Implementado (documentación retroactiva)
+**Prioridad:** P3
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-TRD-009 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-003 |
+| **US Relacionada** | US-TRD-009 (Calcular Position Size Basado en Riesgo) |
+| **Componente Frontend** | `RiskBasedPositionSizer.tsx` |
+| **Líneas de Código** | 391 |
+| **Complejidad** | Baja (cálculos matemáticos simples) |
+
+---
+
+## 1. Descripción General
+
+**Risk-Based Position Sizer** es una calculadora avanzada de gestión de riesgo que determina automáticamente el tamaño óptimo de una posición (lot size) basándose en:
+
+- Saldo de cuenta
+- Porcentaje de riesgo aceptable
+- Distancia al Stop Loss (en pips)
+- Valor del pip según el instrumento
+
+Utiliza la fórmula estándar de position sizing:
+
+```
+Lot Size = (Account Balance × Risk %) / (Stop Loss Pips × Pip Value)
+```
+
+### Beneficios
+
+✅ **Protección de Capital:** Limita pérdidas a un % predefinido del saldo
+✅ **Consistencia:** Mismo nivel de riesgo en todas las operaciones
+✅ **Psicología:** Elimina decisiones emocionales sobre tamaño de posición
+✅ **Risk/Reward:** Calcula ratios automáticamente para evaluar trades
+✅ **Escenarios Múltiples:** Compara 0.5%, 1%, 2%, 5% de riesgo simultáneamente
+
+---
+
+## 2. Arquitectura y Fórmulas
+
+### 2.1 Diagrama de Flujo
+
+```
+┌────────────────────────────────────────────────────────────┐
+│           Risk-Based Position Sizer Flow                   │
+├────────────────────────────────────────────────────────────┤
+│                                                             │
+│  User Inputs:                                               │
+│  ┌─────────────────────────────────────────────┐           │
+│  │ • Account Balance: $10,000                  │           │
+│  │ • Risk Percent: 1%                          │           │
+│  │ • Entry Price: 1.08500                      │           │
+│  │ • Stop Loss: 1.08300                        │           │
+│  │ • Take Profit: 1.08900                      │           │
+│  │ • Trade Type: BUY                           │           │
+│  └─────────────────┬───────────────────────────┘           │
+│                    │                                         │
+│                    v                                         │
+│  ┌─────────────────────────────────────────────┐           │
+│  │  Step 1: Calculate SL Distance (pips)       │           │
+│  │  slPips = |entry - sl| / pipValue           │           │
+│  │  slPips = |1.08500 - 1.08300| / 0.0001      │           │
+│  │  slPips = 20 pips                            │           │
+│  └─────────────────┬───────────────────────────┘           │
+│                    │                                         │
+│                    v                                         │
+│  ┌─────────────────────────────────────────────┐           │
+│  │  Step 2: Calculate Risk Amount              │           │
+│  │  riskAmount = balance × riskPercent / 100   │           │
+│  │  riskAmount = $10,000 × 1 / 100             │           │
+│  │  riskAmount = $100                           │           │
+│  └─────────────────┬───────────────────────────┘           │
+│                    │                                         │
+│                    v                                         │
+│  ┌─────────────────────────────────────────────┐           │
+│  │  Step 3: Calculate Lot Size                 │           │
+│  │  lots = riskAmount / (slPips × pipValueUsd) │           │
+│  │  lots = $100 / (20 × $10)                   │           │
+│  │  lots = 0.50                                 │           │
+│  └─────────────────┬───────────────────────────┘           │
+│                    │                                         │
+│                    v                                         │
+│  ┌─────────────────────────────────────────────┐           │
+│  │  Step 4: Calculate Potential Profit         │           │
+│  │  tpPips = |tp - entry| / pipValue           │           │
+│  │  tpPips = |1.08900 - 1.08500| / 0.0001      │           │
+│  │  tpPips = 40 pips                            │           │
+│  │  profit = lots × tpPips × pipValueUsd       │           │
+│  │  profit = 0.50 × 40 × $10 = $200            │           │
+│  └─────────────────┬───────────────────────────┘           │
+│                    │                                         │
+│                    v                                         │
+│  ┌─────────────────────────────────────────────┐           │
+│  │  Step 5: Calculate R:R Ratio                │           │
+│  │  rr = profit / potentialLoss                │           │
+│  │  rr = $200 / $100 = 2.0                     │           │
+│  │  Display: 1:2.0                              │           │
+│  └─────────────────┬───────────────────────────┘           │
+│                    │                                         │
+│                    v                                         │
+│  ┌─────────────────────────────────────────────┐           │
+│  │  Output:                                     │           │
+│  │  • Lot Size: 0.50                            │           │
+│  │  • Risk: $100.00                             │           │
+│  │  • Max Loss: $100.00                         │           │
+│  │  • Potential Profit: $200.00                 │           │
+│  │  • R:R Ratio: 1:2.0                          │           │
+│  └─────────────────────────────────────────────┘           │
+│                                                             │
+└────────────────────────────────────────────────────────────┘
+```
+
+### 2.2 Fórmulas Matemáticas
+
+#### Formula 1: Pip Distance Calculation
+
+```typescript
+const pipValue = symbol.includes('JPY') ? 0.01 : 0.0001;
+
+// SL distance in pips
+const slPips = Math.abs(entryPrice - stopLoss) / pipValue;
+
+// TP distance in pips
+const tpPips = takeProfit ? Math.abs(takeProfit - entryPrice) / pipValue : 0;
+```
+
+**Ejemplos:**
+- EURUSD (entry: 1.08500, SL: 1.08300) → 20 pips
+- USDJPY (entry: 149.50, SL: 149.00) → 50 pips
+- GBPUSD (entry: 1.25800, SL: 1.25600) → 20 pips
+
+#### Formula 2: Risk Amount
+
+```typescript
+const riskAmount = (accountBalance * riskPercent) / 100;
+```
+
+**Ejemplos:**
+- Balance: $10,000 @ 1% → $100 risk
+- Balance: $50,000 @ 2% → $1,000 risk
+- Balance: $5,000 @ 0.5% → $25 risk
+
+#### Formula 3: Lot Size (Position Size)
+
+```typescript
+const pipValueUsd = 10; // $10 per pip per standard lot for majors
+
+const lots = riskAmount / (slPips * pipValueUsd);
+const roundedLots = Math.floor(lots * 100) / 100; // Round down to 0.01
+```
+
+**Ejemplos:**
+- Risk: $100 / (20 pips × $10) → 0.50 lots
+- Risk: $1,000 / (50 pips × $10) → 2.00 lots
+- Risk: $25 / (10 pips × $10) → 0.25 lots
+
+**Important:** Always round DOWN to prevent exceeding risk tolerance
+
+#### Formula 4: Potential Loss (Verification)
+
+```typescript
+const potentialLoss = roundedLots * slPips * pipValueUsd;
+```
+
+This should equal `riskAmount` (or slightly less due to rounding)
+
+#### Formula 5: Potential Profit
+
+```typescript
+const potentialProfit = roundedLots * tpPips * pipValueUsd;
+```
+
+#### Formula 6: Risk/Reward Ratio
+
+```typescript
+const riskRewardRatio = potentialProfit / potentialLoss;
+```
+
+**Interpretation:**
+- R:R = 2.0 → For every $1 risked, gain $2 (1:2 ratio) ✅ Good
+- R:R = 1.0 → Equal risk/reward (1:1 ratio) ⚠️ Borderline
+- R:R = 0.5 → Risk $2 to gain $1 (1:0.5 ratio) ❌ Bad trade
+
+---
+
+## 3. Component Interface
+
+### 3.1 Props
+
+```typescript
+interface RiskBasedPositionSizerProps {
+  accountBalance?: number;           // Default: 10000
+  defaultSymbol?: string;             // Default: 'EURUSD'
+  defaultRiskPercent?: number;        // Default: 1
+  onCalculate?: (result: CalculationResult) => void;  // Callback on calc
+  onApplyToOrder?: (lots: number) => void;  // Apply to order form
+  compact?: boolean;                  // Default: false
+}
+
+interface CalculationResult {
+  lots: number;                       // Calculated position size
+  riskAmount: number;                 // Dollar amount at risk
+  potentialLoss: number;              // Max loss (≈ riskAmount)
+  potentialProfit: number;            // Potential gain (if TP hit)
+  riskRewardRatio: number;            // R:R ratio
+  pipValue: number;                   // Dollar value per pip for this lot size
+  slPips: number;                     // Distance to SL in pips
+  tpPips: number;                     // Distance to TP in pips
+}
+```
+
+### 3.2 State Variables
+
+```typescript
+const [balance, setBalance] = useState<string>('10000');
+const [riskPercent, setRiskPercent] = useState<string>('1');
+const [symbol, setSymbol] = useState('EURUSD');
+const [entryPrice, setEntryPrice] = useState<string>('');
+const [stopLoss, setStopLoss] = useState<string>('');
+const [takeProfit, setTakeProfit] = useState<string>('');
+const [tradeType, setTradeType] = useState<'BUY' | 'SELL'>('BUY');
+const [copied, setCopied] = useState(false);
+```
+
+---
+
+## 4. Features Implementadas
+
+### 4.1 Input Controls
+
+| Campo | Tipo | Validación | Descripción |
+|-------|------|------------|-------------|
+| **Account Balance** | Number | > 0 | Saldo de cuenta en USD |
+| **Risk Percent** | Number | 0.1 - 10% | Porcentaje de riesgo por trade |
+| **Trade Direction** | BUY/SELL | Required | Tipo de operación |
+| **Entry Price** | Number | > 0 | Precio de entrada |
+| **Stop Loss** | Number | Validate logic | SL debe estar "contra" la dirección |
+| **Take Profit** | Number | Optional | TP (opcional) |
+
+**Validación de Stop Loss:**
+- BUY trades: SL < Entry Price
+- SELL trades: SL > Entry Price
+- Si inválido → Muestra warning rojo
+
+### 4.2 Quick Risk Presets
+
+Botones rápidos para seleccionar niveles de riesgo comunes:
+
+```typescript
+{[0.5, 1, 2, 3].map((pct) => (
+  <button onClick={() => setRiskPercent(pct.toString())}>
+    {pct}%
+  </button>
+))}
+```
+
+- 0.5% → Conservative (profesionales)
+- 1% → Standard (recomendado)
+- 2% → Aggressive
+- 3% → Very aggressive (no recomendado)
+
+### 4.3 Calculation Result Panel
+
+Muestra en tiempo real:
+
+```
+┌─────────────────────────────────────────┐
+│ Recommended Position Size               │
+│                                         │
+│         0.50 lots      📋 [Copy]       │
+│                                         │
+│ ────────────────────────────────────── │
+│ Risk Amount       Max Loss              │
+│ $100.00          $100.00                │
+│                                         │
+│ Potential Profit  R:R Ratio             │
+│ $200.00          1:2.00                 │
+│ ────────────────────────────────────── │
+│ ℹ SL: 20.0 pips • Pip value: $5.00    │
+│                                         │
+│ [Apply to Order]                        │
+└─────────────────────────────────────────┘
+```
+
+### 4.4 Risk Scenarios Matrix
+
+Muestra 4 escenarios simultáneos (0.5%, 1%, 2%, 5%):
+
+```
+┌─────┬─────┬─────┬─────┐
+│ 0.5%│ 1%  │ 2%  │ 5%  │
+│0.25 │0.50 │1.00 │2.50 │
+│ $50 │$100 │$200 │$500 │
+└─────┴─────┴─────┴─────┘
+```
+
+Click en cualquier escenario → cambia risk% automáticamente
+
+### 4.5 Copy to Clipboard
+
+Botón "Copy" copia lot size al portapapeles:
+
+```typescript
+const handleCopyLots = async () => {
+  await navigator.clipboard.writeText(calculation.lots.toFixed(2));
+  setCopied(true);
+  setTimeout(() => setCopied(false), 2000);
+};
+```
+
+Muestra checkmark verde por 2 segundos
+
+### 4.6 Apply to Order
+
+Callback para integrar con formularios de orden:
+
+```typescript
+const handleApply = () => {
+  if (calculation && onApplyToOrder) {
+    onApplyToOrder(calculation.lots);
+  }
+};
+```
+
+---
+
+## 5. Cálculos Avanzados
+
+### 5.1 Pip Value Detection
+
+Detecta automáticamente el valor del pip según el par:
+
+```typescript
+const pipValue = symbol.includes('JPY') ? 0.01 : 0.0001;
+```
+
+- **Major pairs (EURUSD, GBPUSD):** 0.0001 (4 decimales)
+- **JPY pairs (USDJPY, EURJPY):** 0.01 (2 decimales)
+
+### 5.2 Pip Value USD (Approximation)
+
+Asume $10 USD per pip per lot para pares mayores:
+
+```typescript
+const pipValueUsd = 10; // Approximate for majors
+```
+
+**Real pip values (1 standard lot):**
+- EURUSD: $10/pip
+- GBPUSD: $10/pip
+- USDJPY: ~$9.09/pip (variable)
+- AUDUSD: $10/pip
+
+**Mejora futura:** API para obtener pip values reales dinámicamente
+
+### 5.3 Lot Size Rounding
+
+Redondea HACIA ABAJO para no exceder riesgo:
+
+```typescript
+const roundedLots = Math.floor(lots * 100) / 100;
+```
+
+**Ejemplos:**
+- 0.5678 → 0.56 lots
+- 1.2345 → 1.23 lots
+- 0.0199 → 0.01 lots (minimum tradeable)
+
+**Micro lots (0.01) son el tamaño mínimo**
+
+---
+
+## 6. Validaciones
+
+### 6.1 Input Validation
+
+```typescript
+const calculation = useMemo(() => {
+  const balanceNum = parseFloat(balance) || 0;
+  const riskPercentNum = parseFloat(riskPercent) || 0;
+  const entry = parseFloat(entryPrice) || 0;
+  const sl = parseFloat(stopLoss) || 0;
+  const tp = parseFloat(takeProfit) || 0;
+
+  // Required fields
+  if (!balanceNum || !riskPercentNum || !entry || !sl) {
+    return null;
+  }
+
+  // ... calculations
+}, [balance, riskPercent, entryPrice, stopLoss, takeProfit, symbol]);
+```
+
+### 6.2 Stop Loss Logic Validation
+
+```typescript
+const isValidSL = () => {
+  const entry = parseFloat(entryPrice) || 0;
+  const sl = parseFloat(stopLoss) || 0;
+  if (!entry || !sl) return true;
+
+  if (tradeType === 'BUY') {
+    return sl < entry;  // SL must be below entry for BUY
+  } else {
+    return sl > entry;  // SL must be above entry for SELL
+  }
+};
+```
+
+**UI Feedback:**
+- Invalid SL → Red border + warning message
+- Blocks calculation until fixed
+
+---
+
+## 7. UI Components
+
+### 7.1 Account Balance Input
+
+```tsx
+<div className="relative">
+  <DollarSign className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-500" />
+  <input
+    type="number"
+    value={balance}
+    onChange={(e) => setBalance(e.target.value)}
+    className="w-full pl-10 pr-4 py-2.5 bg-gray-900 border border-gray-700 rounded-lg"
+  />
+</div>
+```
+
+### 7.2 Risk Percent Slider + Buttons
+
+```tsx
+<input
+  type="number"
+  value={riskPercent}
+  step="0.5"
+  min="0.1"
+  max="10"
+  className="w-full pl-10 pr-4 py-2.5 bg-gray-900 border border-gray-700 rounded-lg"
+/>
+
+<div className="flex gap-2 mt-2">
+  {[0.5, 1, 2, 3].map((pct) => (
+    <button
+      onClick={() => setRiskPercent(pct.toString())}
+      className={parseFloat(riskPercent) === pct ? 'bg-blue-600' : 'bg-gray-700'}
+    >
+      {pct}%
+    </button>
+  ))}
+</div>
+```
+
+### 7.3 BUY/SELL Toggle
+
+```tsx
+<div className="grid grid-cols-2 gap-2">
+  <button
+    onClick={() => setTradeType('BUY')}
+    className={tradeType === 'BUY' ? 'bg-green-600' : 'bg-gray-700'}
+  >
+    <TrendingUp className="w-4 h-4" />
+    BUY
+  </button>
+  <button
+    onClick={() => setTradeType('SELL')}
+    className={tradeType === 'SELL' ? 'bg-red-600' : 'bg-gray-700'}
+  >
+    <TrendingDown className="w-4 h-4" />
+    SELL
+  </button>
+</div>
+```
+
+### 7.4 Price Inputs (Entry, SL, TP)
+
+```tsx
+<div className="grid grid-cols-3 gap-3">
+  <div>
+    <label>Entry Price</label>
+    <input
+      type="number"
+      step="0.00001"
+      placeholder="1.08500"
+      className="font-mono"
+    />
+  </div>
+  <div>
+    <label>
+      <Shield className="text-red-400" />
+      Stop Loss
+    </label>
+    <input className={!isValidSL() ? 'border-red-500' : ''} />
+  </div>
+  <div>
+    <label>
+      <Target className="text-green-400" />
+      Take Profit
+    </label>
+    <input />
+  </div>
+</div>
+```
+
+### 7.5 Result Card
+
+```tsx
+<div className="p-4 bg-blue-500/10 border border-blue-500/30 rounded-xl">
+  <div className="flex items-center justify-between">
+    <span>Recommended Position Size</span>
+    <div className="flex items-center gap-2">
+      <span className="text-2xl font-bold">{calculation.lots.toFixed(2)}</span>
+      <span>lots</span>
+      <button onClick={handleCopyLots}>
+        {copied ? <Check className="text-green-400" /> : <Copy />}
+      </button>
+    </div>
+  </div>
+
+  <div className="grid grid-cols-2 gap-3 pt-3 border-t">
+    <div>
+      <div className="text-xs text-gray-500">Risk Amount</div>
+      <div className="text-red-400">${calculation.riskAmount.toFixed(2)}</div>
+    </div>
+    <div>
+      <div className="text-xs text-gray-500">Max Loss</div>
+      <div className="text-red-400">${calculation.potentialLoss.toFixed(2)}</div>
+    </div>
+    <div>
+      <div className="text-xs text-gray-500">Potential Profit</div>
+      <div className="text-green-400">${calculation.potentialProfit.toFixed(2)}</div>
+    </div>
+    <div>
+      <div className="text-xs text-gray-500">R:R Ratio</div>
+      <div className="text-white">1:{calculation.riskRewardRatio.toFixed(2)}</div>
+    </div>
+  </div>
+
+  <button onClick={handleApply} className="w-full py-2.5 bg-blue-600 rounded-lg">
+    Apply to Order
+  </button>
+</div>
+```
+
+---
+
+## 8. Uso e Integración
+
+### 8.1 Standalone Mode
+
+```tsx
+import RiskBasedPositionSizer from '@/modules/trading/components/RiskBasedPositionSizer';
+
+function TradingPage() {
+  return (
+    <div>
+      <RiskBasedPositionSizer
+        accountBalance={15000}
+        defaultRiskPercent={1}
+        onCalculate={(result) => {
+          console.log('Calculated lot size:', result.lots);
+        }}
+      />
+    </div>
+  );
+}
+```
+
+### 8.2 Integration with Order Form
+
+```tsx
+import RiskBasedPositionSizer from '@/modules/trading/components/RiskBasedPositionSizer';
+import OrderForm from '@/modules/trading/components/OrderForm';
+
+function TradingDashboard() {
+  const [calculatedLots, setCalculatedLots] = useState<number | null>(null);
+
+  return (
+    <div className="grid grid-cols-2 gap-4">
+      {/* Position Sizer */}
+      <RiskBasedPositionSizer
+        accountBalance={userBalance}
+        onApplyToOrder={(lots) => {
+          setCalculatedLots(lots);
+          // Automatically fill order form
+        }}
+      />
+
+      {/* Order Form */}
+      <OrderForm
+        initialLotSize={calculatedLots}
+      />
+    </div>
+  );
+}
+```
+
+### 8.3 Compact Mode (Sidebar)
+
+```tsx
+<RiskBasedPositionSizer
+  compact={true}  // Hides scenarios and tips
+  accountBalance={userBalance}
+/>
+```
+
+---
+
+## 9. Mejoras Futuras
+
+### 9.1 Dynamic Pip Values (API Integration)
+
+Actualmente usa $10 aproximado. Mejorar con API real:
+
+```typescript
+// Fetch real-time pip values
+const pipValueUsd = await tradingService.getPipValue(symbol, accountCurrency);
+```
+
+### 9.2 Multi-Currency Support
+
+Soportar cuentas en EUR, GBP, AUD:
+
+```typescript
+interface Props {
+  accountCurrency?: 'USD' | 'EUR' | 'GBP';
+}
+
+const convertedRisk = riskAmount * conversionRate;
+```
+
+### 9.3 Advanced Risk Models
+
+- **Kelly Criterion:** Optimal position sizing basado en win rate
+- **Fixed Fractional:** Basado en equity drawdown
+- **Volatility-Based:** Ajustar según ATR/volatilidad
+
+### 9.4 Presets Persistence
+
+Guardar configuraciones favoritas:
+
+```typescript
+const savePreset = async (name: string) => {
+  await apiClient.post('/api/risk-presets', {
+    name,
+    risk_percent: riskPercent,
+    default_symbol: symbol
+  });
+};
+```
+
+### 9.5 Risk Analytics
+
+Dashboard de gestión de riesgo:
+- Total risk exposure (todas las posiciones abiertas)
+- Daily risk limit tracker
+- Risk heatmap por símbolo
+- Historical risk performance
+
+---
+
+## 10. Testing Scenarios
+
+### Manual Test Cases
+
+1. **Basic Calculation:**
+   - Balance: $10,000
+   - Risk: 1%
+   - Entry: 1.08500
+   - SL: 1.08300 (20 pips)
+   - **Expected:** 0.50 lots, $100 risk
+
+2. **High Risk:**
+   - Balance: $50,000
+   - Risk: 5%
+   - Entry: 1.25800
+   - SL: 1.25300 (50 pips)
+   - **Expected:** 5.00 lots, $2,500 risk
+
+3. **Invalid SL (BUY):**
+   - Entry: 1.08500
+   - SL: 1.08700 (above entry)
+   - **Expected:** Red warning, no calculation
+
+4. **Invalid SL (SELL):**
+   - Entry: 1.08500
+   - SL: 1.08300 (below entry)
+   - **Expected:** Red warning, no calculation
+
+5. **No Take Profit:**
+   - Entry: 1.08500
+   - SL: 1.08300
+   - TP: (empty)
+   - **Expected:** Calculation works, R:R = 0
+
+6. **JPY Pair:**
+   - Symbol: USDJPY
+   - Entry: 149.50
+   - SL: 149.00 (50 pips)
+   - **Expected:** Correct pip value (0.01)
+
+---
+
+## 11. Referencias
+
+- **Componente:** `apps/frontend/src/modules/trading/components/RiskBasedPositionSizer.tsx` (391 líneas)
+- **Integración:** `AdvancedOrderEntry.tsx`, `QuickOrderPanel.tsx`
+- **US:** `US-TRD-009-risk-based-position-sizer.md`
+- **Formula Reference:** [Babypips Position Size Calculator](https://www.babypips.com/tools/position-size-calculator)
+
+---
+
+**Última actualización:** 2026-01-25
+**Responsable:** Frontend Lead
+
diff --git a/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-010-drawing-tools-persistence.md b/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-010-drawing-tools-persistence.md
new file mode 100644
index 0000000..ea1a0ba
--- /dev/null
+++ b/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-010-drawing-tools-persistence.md
@@ -0,0 +1,1268 @@
+# ET-TRD-010: Drawing Tools Persistence
+
+**Versión:** 1.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-003 - Trading y Charts
+**Componente:** Backend API + Frontend Store + Database Schema
+**Estado:** 🟡 50% Implementado (UI funciona, falta persistencia)
+**Prioridad:** P2
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-TRD-010 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-003 |
+| **US Relacionada** | US-TRD-010 (Persistir Dibujos en Charts) |
+| **Componente Actual** | `ChartDrawingToolsPanel.tsx` (420 líneas, ✅ funcional) |
+| **Gap** | Persistencia (backend API + DB + Zustand store) |
+| **Complejidad** | Media (CRUD + sincronización) |
+| **Esfuerzo Estimado** | 3 horas |
+
+---
+
+## 1. Descripción General
+
+**Drawing Tools Persistence** permite a los usuarios guardar sus análisis técnicos (líneas de tendencia, Fibonacci, rectángulos, anotaciones, etc.) en el backend para que persistan entre sesiones y dispositivos.
+
+### Estado Actual (50% Implementado)
+
+✅ **Frontend UI Completado:**
+- Componente `ChartDrawingToolsPanel.tsx` con 10 herramientas de dibujo
+- Gestión de estado local (color, grosor, visibilidad, bloqueo)
+- Duplicación, eliminación, undo
+- 420 líneas de código funcional
+
+❌ **Falta Implementar:**
+- Backend API REST (`/api/chart-drawings`)
+- Tabla `chart_drawings` en PostgreSQL
+- Zustand store para gestión de estado
+- Hook `useDrawings` para sincronización
+- Auto-save debounced (1 segundo)
+- Import/export JSON
+
+---
+
+## 2. Arquitectura de Persistencia
+
+### 2.1 Flujo de Datos
+
+```
+┌─────────────────────────────────────────────────────────────┐
+│              Drawing Persistence Architecture                │
+├─────────────────────────────────────────────────────────────┤
+│                                                               │
+│  User Interaction (Chart Canvas)                             │
+│         │                                                     │
+│         v                                                     │
+│  ┌──────────────────────────────────────┐                   │
+│  │  ChartDrawingToolsPanel.tsx          │                   │
+│  │  • Draw, Edit, Delete                │                   │
+│  │  • Local state management            │                   │
+│  └──────────────┬───────────────────────┘                   │
+│                 │                                             │
+│                 v                                             │
+│  ┌──────────────────────────────────────┐                   │
+│  │  useDrawings Hook                    │                   │
+│  │  • Debounce changes (1s)             │                   │
+│  │  • Call Zustand actions              │                   │
+│  └──────────────┬───────────────────────┘                   │
+│                 │                                             │
+│                 v                                             │
+│  ┌──────────────────────────────────────┐                   │
+│  │  drawingsStore (Zustand)             │                   │
+│  │  • Local cache                        │                   │
+│  │  • Optimistic updates                 │                   │
+│  │  • API calls                          │                   │
+│  └──────────────┬───────────────────────┘                   │
+│                 │                                             │
+│         ┌───────┴────────┐                                   │
+│         │                │                                    │
+│         v                v                                    │
+│  POST /api/drawings  GET /api/drawings/:symbol               │
+│         │                │                                    │
+│         v                v                                    │
+│  ┌──────────────────────────────────────┐                   │
+│  │  Express Backend                     │                   │
+│  │  • ChartDrawingsController           │                   │
+│  │  • Validation                         │                   │
+│  │  • Auth check (JWT)                   │                   │
+│  └──────────────┬───────────────────────┘                   │
+│                 │                                             │
+│                 v                                             │
+│  ┌──────────────────────────────────────┐                   │
+│  │  PostgreSQL: chart_drawings          │                   │
+│  │  • user_id, symbol, timeframe        │                   │
+│  │  • drawing_data (JSONB)               │                   │
+│  │  • created_at, updated_at             │                   │
+│  └──────────────────────────────────────┘                   │
+│                                                               │
+└─────────────────────────────────────────────────────────────┘
+```
+
+---
+
+## 3. Database Schema
+
+### 3.1 Tabla `chart_drawings`
+
+```sql
+-- Schema: trading
+CREATE TABLE IF NOT EXISTS trading.chart_drawings (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id UUID NOT NULL REFERENCES core.users(id) ON DELETE CASCADE,
+
+  -- Chart context
+  symbol VARCHAR(20) NOT NULL,  -- BTCUSD, ETHUSD, etc.
+  timeframe VARCHAR(10) NOT NULL,  -- 1m, 5m, 15m, 1h, 4h, 1d
+
+  -- Drawing metadata
+  tool_type VARCHAR(20) NOT NULL,  -- trendline, fibonacci, rectangle, etc.
+  label VARCHAR(100),  -- Optional user label
+
+  -- Drawing properties
+  drawing_data JSONB NOT NULL,  -- Complete drawing object (color, points, etc.)
+
+  -- State
+  visible BOOLEAN DEFAULT true,
+  locked BOOLEAN DEFAULT false,
+
+  -- Timestamps
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+
+  -- Indexes
+  CONSTRAINT unique_user_symbol_drawing UNIQUE (user_id, symbol, id)
+);
+
+-- Indexes for performance
+CREATE INDEX idx_chart_drawings_user_symbol ON trading.chart_drawings(user_id, symbol);
+CREATE INDEX idx_chart_drawings_user_symbol_timeframe ON trading.chart_drawings(user_id, symbol, timeframe);
+CREATE INDEX idx_chart_drawings_created_at ON trading.chart_drawings(created_at DESC);
+
+-- GIN index for JSONB queries
+CREATE INDEX idx_chart_drawings_data ON trading.chart_drawings USING GIN(drawing_data);
+
+-- Auto-update timestamp
+CREATE TRIGGER update_chart_drawings_updated_at
+  BEFORE UPDATE ON trading.chart_drawings
+  FOR EACH ROW
+  EXECUTE FUNCTION core.update_updated_at_column();
+```
+
+### 3.2 Estructura de `drawing_data` (JSONB)
+
+```json
+{
+  "id": "draw_1738045812345_abc123",
+  "tool": "trendline",
+  "color": "#3B82F6",
+  "lineWidth": 2,
+  "visible": true,
+  "locked": false,
+  "label": "Strong uptrend",
+  "points": [
+    { "x": 100, "y": 200, "price": 43250.50, "time": "2026-01-25T10:00:00Z" },
+    { "x": 500, "y": 150, "price": 44100.00, "time": "2026-01-25T14:00:00Z" }
+  ],
+  "createdAt": "2026-01-25T10:30:15Z"
+}
+```
+
+---
+
+## 4. Backend API
+
+### 4.1 REST Endpoints
+
+| Método | Endpoint | Descripción | Auth |
+|--------|----------|-------------|------|
+| GET | `/api/chart-drawings/:symbol` | Obtener todos los dibujos de un símbolo | ✅ JWT |
+| GET | `/api/chart-drawings/:symbol/:timeframe` | Filtrar por timeframe | ✅ JWT |
+| POST | `/api/chart-drawings` | Crear nuevo dibujo | ✅ JWT |
+| PUT | `/api/chart-drawings/:id` | Actualizar dibujo existente | ✅ JWT |
+| DELETE | `/api/chart-drawings/:id` | Eliminar dibujo | ✅ JWT |
+| DELETE | `/api/chart-drawings/:symbol/all` | Eliminar todos los dibujos de un símbolo | ✅ JWT |
+| POST | `/api/chart-drawings/import` | Importar dibujos desde JSON | ✅ JWT |
+| GET | `/api/chart-drawings/export/:symbol` | Exportar dibujos a JSON | ✅ JWT |
+
+### 4.2 Request/Response Examples
+
+#### POST `/api/chart-drawings` - Create Drawing
+
+**Request:**
+```http
+POST /api/chart-drawings
+Authorization: Bearer <jwt_token>
+Content-Type: application/json
+
+{
+  "symbol": "BTCUSD",
+  "timeframe": "1h",
+  "tool_type": "trendline",
+  "label": "Strong uptrend",
+  "drawing_data": {
+    "id": "draw_1738045812345_abc123",
+    "tool": "trendline",
+    "color": "#3B82F6",
+    "lineWidth": 2,
+    "visible": true,
+    "locked": false,
+    "points": [
+      { "x": 100, "y": 200, "price": 43250.50, "time": "2026-01-25T10:00:00Z" },
+      { "x": 500, "y": 150, "price": 44100.00, "time": "2026-01-25T14:00:00Z" }
+    ],
+    "createdAt": "2026-01-25T10:30:15Z"
+  },
+  "visible": true,
+  "locked": false
+}
+```
+
+**Response:**
+```json
+{
+  "success": true,
+  "data": {
+    "id": "550e8400-e29b-41d4-a716-446655440000",
+    "user_id": "123e4567-e89b-12d3-a456-426614174000",
+    "symbol": "BTCUSD",
+    "timeframe": "1h",
+    "tool_type": "trendline",
+    "label": "Strong uptrend",
+    "drawing_data": { /* ... */ },
+    "visible": true,
+    "locked": false,
+    "created_at": "2026-01-25T10:30:15Z",
+    "updated_at": "2026-01-25T10:30:15Z"
+  }
+}
+```
+
+#### GET `/api/chart-drawings/:symbol` - Fetch Drawings
+
+**Request:**
+```http
+GET /api/chart-drawings/BTCUSD?timeframe=1h
+Authorization: Bearer <jwt_token>
+```
+
+**Response:**
+```json
+{
+  "success": true,
+  "data": [
+    {
+      "id": "550e8400-e29b-41d4-a716-446655440000",
+      "symbol": "BTCUSD",
+      "timeframe": "1h",
+      "tool_type": "trendline",
+      "label": "Strong uptrend",
+      "drawing_data": {
+        "id": "draw_1738045812345_abc123",
+        "tool": "trendline",
+        "color": "#3B82F6",
+        "lineWidth": 2,
+        "visible": true,
+        "locked": false,
+        "points": [
+          { "x": 100, "y": 200, "price": 43250.50, "time": "2026-01-25T10:00:00Z" },
+          { "x": 500, "y": 150, "price": 44100.00, "time": "2026-01-25T14:00:00Z" }
+        ],
+        "createdAt": "2026-01-25T10:30:15Z"
+      },
+      "visible": true,
+      "locked": false,
+      "created_at": "2026-01-25T10:30:15Z",
+      "updated_at": "2026-01-25T10:30:15Z"
+    },
+    {
+      "id": "660f9511-f39c-52e5-b827-557766551111",
+      "symbol": "BTCUSD",
+      "timeframe": "1h",
+      "tool_type": "fibonacci",
+      "label": "Fib retracement",
+      "drawing_data": { /* ... */ },
+      "visible": true,
+      "locked": false,
+      "created_at": "2026-01-25T11:00:00Z",
+      "updated_at": "2026-01-25T11:00:00Z"
+    }
+  ],
+  "meta": {
+    "total": 2,
+    "symbol": "BTCUSD",
+    "timeframe": "1h"
+  }
+}
+```
+
+#### PUT `/api/chart-drawings/:id` - Update Drawing
+
+**Request:**
+```http
+PUT /api/chart-drawings/550e8400-e29b-41d4-a716-446655440000
+Authorization: Bearer <jwt_token>
+Content-Type: application/json
+
+{
+  "drawing_data": {
+    "id": "draw_1738045812345_abc123",
+    "tool": "trendline",
+    "color": "#10B981",  // Changed color
+    "lineWidth": 3,      // Changed width
+    "visible": true,
+    "locked": true,      // Locked
+    "points": [
+      { "x": 100, "y": 200, "price": 43250.50, "time": "2026-01-25T10:00:00Z" },
+      { "x": 500, "y": 150, "price": 44100.00, "time": "2026-01-25T14:00:00Z" }
+    ],
+    "createdAt": "2026-01-25T10:30:15Z"
+  },
+  "locked": true
+}
+```
+
+**Response:**
+```json
+{
+  "success": true,
+  "data": {
+    "id": "550e8400-e29b-41d4-a716-446655440000",
+    "drawing_data": { /* updated data */ },
+    "locked": true,
+    "updated_at": "2026-01-25T11:15:30Z"
+  }
+}
+```
+
+---
+
+## 5. Backend Implementation
+
+### 5.1 Controller: `ChartDrawingsController.ts`
+
+```typescript
+// apps/backend/src/controllers/chart-drawings.controller.ts
+
+import { Request, Response } from 'express';
+import { pool } from '../config/database';
+import { authenticateToken } from '../middleware/auth.middleware';
+
+interface Drawing {
+  id: string;
+  tool: string;
+  color: string;
+  lineWidth: number;
+  visible: boolean;
+  locked: boolean;
+  label?: string;
+  points: { x: number; y: number; price?: number; time?: string }[];
+  createdAt: string;
+}
+
+interface CreateDrawingRequest {
+  symbol: string;
+  timeframe: string;
+  tool_type: string;
+  label?: string;
+  drawing_data: Drawing;
+  visible?: boolean;
+  locked?: boolean;
+}
+
+export class ChartDrawingsController {
+
+  // GET /api/chart-drawings/:symbol
+  static async getDrawings(req: Request, res: Response) {
+    const { symbol } = req.params;
+    const { timeframe } = req.query;
+    const userId = req.user!.id;
+
+    try {
+      let query = `
+        SELECT * FROM trading.chart_drawings
+        WHERE user_id = $1 AND symbol = $2
+      `;
+      const params: any[] = [userId, symbol];
+
+      if (timeframe) {
+        query += ` AND timeframe = $3`;
+        params.push(timeframe);
+      }
+
+      query += ` ORDER BY created_at DESC`;
+
+      const result = await pool.query(query, params);
+
+      res.json({
+        success: true,
+        data: result.rows,
+        meta: {
+          total: result.rows.length,
+          symbol,
+          timeframe: timeframe || 'all'
+        }
+      });
+    } catch (error) {
+      console.error('Error fetching drawings:', error);
+      res.status(500).json({
+        success: false,
+        error: 'Failed to fetch drawings'
+      });
+    }
+  }
+
+  // POST /api/chart-drawings
+  static async createDrawing(req: Request, res: Response) {
+    const userId = req.user!.id;
+    const { symbol, timeframe, tool_type, label, drawing_data, visible = true, locked = false } = req.body as CreateDrawingRequest;
+
+    // Validation
+    if (!symbol || !timeframe || !tool_type || !drawing_data) {
+      return res.status(400).json({
+        success: false,
+        error: 'Missing required fields: symbol, timeframe, tool_type, drawing_data'
+      });
+    }
+
+    try {
+      const query = `
+        INSERT INTO trading.chart_drawings (
+          user_id, symbol, timeframe, tool_type, label, drawing_data, visible, locked
+        ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
+        RETURNING *
+      `;
+
+      const result = await pool.query(query, [
+        userId,
+        symbol,
+        timeframe,
+        tool_type,
+        label,
+        JSON.stringify(drawing_data),
+        visible,
+        locked
+      ]);
+
+      res.status(201).json({
+        success: true,
+        data: result.rows[0]
+      });
+    } catch (error) {
+      console.error('Error creating drawing:', error);
+      res.status(500).json({
+        success: false,
+        error: 'Failed to create drawing'
+      });
+    }
+  }
+
+  // PUT /api/chart-drawings/:id
+  static async updateDrawing(req: Request, res: Response) {
+    const { id } = req.params;
+    const userId = req.user!.id;
+    const { drawing_data, visible, locked, label } = req.body;
+
+    try {
+      // Build dynamic update query
+      const updates: string[] = [];
+      const values: any[] = [];
+      let paramCount = 1;
+
+      if (drawing_data !== undefined) {
+        updates.push(`drawing_data = $${paramCount++}`);
+        values.push(JSON.stringify(drawing_data));
+      }
+      if (visible !== undefined) {
+        updates.push(`visible = $${paramCount++}`);
+        values.push(visible);
+      }
+      if (locked !== undefined) {
+        updates.push(`locked = $${paramCount++}`);
+        values.push(locked);
+      }
+      if (label !== undefined) {
+        updates.push(`label = $${paramCount++}`);
+        values.push(label);
+      }
+
+      if (updates.length === 0) {
+        return res.status(400).json({
+          success: false,
+          error: 'No fields to update'
+        });
+      }
+
+      const query = `
+        UPDATE trading.chart_drawings
+        SET ${updates.join(', ')}, updated_at = CURRENT_TIMESTAMP
+        WHERE id = $${paramCount} AND user_id = $${paramCount + 1}
+        RETURNING *
+      `;
+
+      values.push(id, userId);
+
+      const result = await pool.query(query, values);
+
+      if (result.rows.length === 0) {
+        return res.status(404).json({
+          success: false,
+          error: 'Drawing not found or unauthorized'
+        });
+      }
+
+      res.json({
+        success: true,
+        data: result.rows[0]
+      });
+    } catch (error) {
+      console.error('Error updating drawing:', error);
+      res.status(500).json({
+        success: false,
+        error: 'Failed to update drawing'
+      });
+    }
+  }
+
+  // DELETE /api/chart-drawings/:id
+  static async deleteDrawing(req: Request, res: Response) {
+    const { id } = req.params;
+    const userId = req.user!.id;
+
+    try {
+      const query = `
+        DELETE FROM trading.chart_drawings
+        WHERE id = $1 AND user_id = $2
+        RETURNING id
+      `;
+
+      const result = await pool.query(query, [id, userId]);
+
+      if (result.rows.length === 0) {
+        return res.status(404).json({
+          success: false,
+          error: 'Drawing not found or unauthorized'
+        });
+      }
+
+      res.json({
+        success: true,
+        message: 'Drawing deleted successfully'
+      });
+    } catch (error) {
+      console.error('Error deleting drawing:', error);
+      res.status(500).json({
+        success: false,
+        error: 'Failed to delete drawing'
+      });
+    }
+  }
+
+  // DELETE /api/chart-drawings/:symbol/all
+  static async clearAllDrawings(req: Request, res: Response) {
+    const { symbol } = req.params;
+    const userId = req.user!.id;
+    const { timeframe } = req.query;
+
+    try {
+      let query = `
+        DELETE FROM trading.chart_drawings
+        WHERE user_id = $1 AND symbol = $2
+      `;
+      const params: any[] = [userId, symbol];
+
+      if (timeframe) {
+        query += ` AND timeframe = $3`;
+        params.push(timeframe);
+      }
+
+      query += ` RETURNING id`;
+
+      const result = await pool.query(query, params);
+
+      res.json({
+        success: true,
+        message: `Deleted ${result.rows.length} drawings`,
+        count: result.rows.length
+      });
+    } catch (error) {
+      console.error('Error clearing drawings:', error);
+      res.status(500).json({
+        success: false,
+        error: 'Failed to clear drawings'
+      });
+    }
+  }
+
+  // POST /api/chart-drawings/import
+  static async importDrawings(req: Request, res: Response) {
+    const userId = req.user!.id;
+    const { drawings } = req.body;
+
+    if (!Array.isArray(drawings) || drawings.length === 0) {
+      return res.status(400).json({
+        success: false,
+        error: 'Invalid drawings array'
+      });
+    }
+
+    try {
+      const insertedDrawings = [];
+
+      for (const drawing of drawings) {
+        const { symbol, timeframe, tool_type, label, drawing_data, visible, locked } = drawing;
+
+        const query = `
+          INSERT INTO trading.chart_drawings (
+            user_id, symbol, timeframe, tool_type, label, drawing_data, visible, locked
+          ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
+          RETURNING *
+        `;
+
+        const result = await pool.query(query, [
+          userId,
+          symbol,
+          timeframe,
+          tool_type,
+          label,
+          JSON.stringify(drawing_data),
+          visible ?? true,
+          locked ?? false
+        ]);
+
+        insertedDrawings.push(result.rows[0]);
+      }
+
+      res.json({
+        success: true,
+        message: `Imported ${insertedDrawings.length} drawings`,
+        data: insertedDrawings
+      });
+    } catch (error) {
+      console.error('Error importing drawings:', error);
+      res.status(500).json({
+        success: false,
+        error: 'Failed to import drawings'
+      });
+    }
+  }
+
+  // GET /api/chart-drawings/export/:symbol
+  static async exportDrawings(req: Request, res: Response) {
+    const { symbol } = req.params;
+    const userId = req.user!.id;
+    const { timeframe } = req.query;
+
+    try {
+      let query = `
+        SELECT * FROM trading.chart_drawings
+        WHERE user_id = $1 AND symbol = $2
+      `;
+      const params: any[] = [userId, symbol];
+
+      if (timeframe) {
+        query += ` AND timeframe = $3`;
+        params.push(timeframe);
+      }
+
+      const result = await pool.query(query, params);
+
+      const exportData = {
+        version: '1.0.0',
+        exported_at: new Date().toISOString(),
+        symbol,
+        timeframe: timeframe || 'all',
+        count: result.rows.length,
+        drawings: result.rows
+      };
+
+      res.json({
+        success: true,
+        data: exportData
+      });
+    } catch (error) {
+      console.error('Error exporting drawings:', error);
+      res.status(500).json({
+        success: false,
+        error: 'Failed to export drawings'
+      });
+    }
+  }
+}
+```
+
+### 5.2 Routes: `chart-drawings.routes.ts`
+
+```typescript
+// apps/backend/src/routes/chart-drawings.routes.ts
+
+import { Router } from 'express';
+import { ChartDrawingsController } from '../controllers/chart-drawings.controller';
+import { authenticateToken } from '../middleware/auth.middleware';
+
+const router = Router();
+
+// All routes require authentication
+router.use(authenticateToken);
+
+// CRUD operations
+router.get('/chart-drawings/:symbol', ChartDrawingsController.getDrawings);
+router.post('/chart-drawings', ChartDrawingsController.createDrawing);
+router.put('/chart-drawings/:id', ChartDrawingsController.updateDrawing);
+router.delete('/chart-drawings/:id', ChartDrawingsController.deleteDrawing);
+router.delete('/chart-drawings/:symbol/all', ChartDrawingsController.clearAllDrawings);
+
+// Import/Export
+router.post('/chart-drawings/import', ChartDrawingsController.importDrawings);
+router.get('/chart-drawings/export/:symbol', ChartDrawingsController.exportDrawings);
+
+export default router;
+```
+
+---
+
+## 6. Frontend Implementation
+
+### 6.1 Zustand Store: `drawingsStore.ts`
+
+```typescript
+// apps/frontend/src/stores/drawingsStore.ts
+
+import { create } from 'zustand';
+import { devtools } from 'zustand/middleware';
+import { apiClient } from '../lib/apiClient';
+
+export interface Drawing {
+  id: string;
+  tool: string;
+  color: string;
+  lineWidth: number;
+  visible: boolean;
+  locked: boolean;
+  label?: string;
+  points: { x: number; y: number; price?: number; time?: string }[];
+  createdAt: string;
+}
+
+interface ServerDrawing {
+  id: string;
+  user_id: string;
+  symbol: string;
+  timeframe: string;
+  tool_type: string;
+  label?: string;
+  drawing_data: Drawing;
+  visible: boolean;
+  locked: boolean;
+  created_at: string;
+  updated_at: string;
+}
+
+interface DrawingsState {
+  // State
+  drawings: Map<string, Drawing[]>; // key: "symbol:timeframe"
+  loading: boolean;
+  error: string | null;
+
+  // Actions
+  fetchDrawings: (symbol: string, timeframe: string) => Promise<void>;
+  addDrawing: (symbol: string, timeframe: string, drawing: Drawing) => Promise<void>;
+  updateDrawing: (symbol: string, timeframe: string, drawing: Drawing) => Promise<void>;
+  removeDrawing: (symbol: string, timeframe: string, drawingId: string) => Promise<void>;
+  clearAllDrawings: (symbol: string, timeframe: string) => Promise<void>;
+  importDrawings: (drawings: any[]) => Promise<void>;
+  exportDrawings: (symbol: string, timeframe?: string) => Promise<any>;
+
+  // Local actions (optimistic updates)
+  addDrawingLocally: (symbol: string, timeframe: string, drawing: Drawing) => void;
+  updateDrawingLocally: (symbol: string, timeframe: string, drawing: Drawing) => void;
+  removeDrawingLocally: (symbol: string, timeframe: string, drawingId: string) => void;
+}
+
+export const useDrawingsStore = create<DrawingsState>()(
+  devtools(
+    (set, get) => ({
+      drawings: new Map(),
+      loading: false,
+      error: null,
+
+      // Fetch all drawings for a symbol+timeframe
+      fetchDrawings: async (symbol: string, timeframe: string) => {
+        set({ loading: true, error: null });
+
+        try {
+          const response = await apiClient.get(`/api/chart-drawings/${symbol}`, {
+            params: { timeframe }
+          });
+
+          const serverDrawings: ServerDrawing[] = response.data.data;
+          const drawings = serverDrawings.map(d => d.drawing_data);
+
+          const key = `${symbol}:${timeframe}`;
+          const newMap = new Map(get().drawings);
+          newMap.set(key, drawings);
+
+          set({ drawings: newMap, loading: false });
+        } catch (error) {
+          console.error('Error fetching drawings:', error);
+          set({
+            error: error instanceof Error ? error.message : 'Failed to fetch drawings',
+            loading: false
+          });
+        }
+      },
+
+      // Add new drawing (optimistic update + API call)
+      addDrawing: async (symbol: string, timeframe: string, drawing: Drawing) => {
+        // Optimistic update
+        get().addDrawingLocally(symbol, timeframe, drawing);
+
+        try {
+          await apiClient.post('/api/chart-drawings', {
+            symbol,
+            timeframe,
+            tool_type: drawing.tool,
+            label: drawing.label,
+            drawing_data: drawing,
+            visible: drawing.visible,
+            locked: drawing.locked
+          });
+        } catch (error) {
+          console.error('Error saving drawing:', error);
+          // Rollback optimistic update
+          get().removeDrawingLocally(symbol, timeframe, drawing.id);
+          set({
+            error: error instanceof Error ? error.message : 'Failed to save drawing'
+          });
+          throw error;
+        }
+      },
+
+      // Update existing drawing
+      updateDrawing: async (symbol: string, timeframe: string, drawing: Drawing) => {
+        // Find server ID (we need to maintain a mapping or fetch it)
+        // For simplicity, we'll refetch after update
+
+        try {
+          // This requires knowing the server UUID
+          // In practice, we'd maintain a clientId -> serverId mapping
+          // For now, we'll use drawing.id as both (needs adjustment)
+
+          await apiClient.put(`/api/chart-drawings/${drawing.id}`, {
+            drawing_data: drawing,
+            visible: drawing.visible,
+            locked: drawing.locked,
+            label: drawing.label
+          });
+
+          // Optimistic update
+          get().updateDrawingLocally(symbol, timeframe, drawing);
+        } catch (error) {
+          console.error('Error updating drawing:', error);
+          set({
+            error: error instanceof Error ? error.message : 'Failed to update drawing'
+          });
+          throw error;
+        }
+      },
+
+      // Remove drawing
+      removeDrawing: async (symbol: string, timeframe: string, drawingId: string) => {
+        // Optimistic update
+        const key = `${symbol}:${timeframe}`;
+        const currentDrawings = get().drawings.get(key) || [];
+        const drawingToRemove = currentDrawings.find(d => d.id === drawingId);
+
+        get().removeDrawingLocally(symbol, timeframe, drawingId);
+
+        try {
+          await apiClient.delete(`/api/chart-drawings/${drawingId}`);
+        } catch (error) {
+          console.error('Error deleting drawing:', error);
+          // Rollback
+          if (drawingToRemove) {
+            get().addDrawingLocally(symbol, timeframe, drawingToRemove);
+          }
+          set({
+            error: error instanceof Error ? error.message : 'Failed to delete drawing'
+          });
+          throw error;
+        }
+      },
+
+      // Clear all drawings
+      clearAllDrawings: async (symbol: string, timeframe: string) => {
+        const key = `${symbol}:${timeframe}`;
+        const backup = get().drawings.get(key) || [];
+
+        // Optimistic clear
+        const newMap = new Map(get().drawings);
+        newMap.set(key, []);
+        set({ drawings: newMap });
+
+        try {
+          await apiClient.delete(`/api/chart-drawings/${symbol}/all`, {
+            params: { timeframe }
+          });
+        } catch (error) {
+          console.error('Error clearing drawings:', error);
+          // Rollback
+          const rollbackMap = new Map(get().drawings);
+          rollbackMap.set(key, backup);
+          set({
+            drawings: rollbackMap,
+            error: error instanceof Error ? error.message : 'Failed to clear drawings'
+          });
+          throw error;
+        }
+      },
+
+      // Import drawings
+      importDrawings: async (drawings: any[]) => {
+        try {
+          await apiClient.post('/api/chart-drawings/import', { drawings });
+          // Refetch current symbol/timeframe after import
+          // (caller should trigger refetch)
+        } catch (error) {
+          console.error('Error importing drawings:', error);
+          set({
+            error: error instanceof Error ? error.message : 'Failed to import drawings'
+          });
+          throw error;
+        }
+      },
+
+      // Export drawings
+      exportDrawings: async (symbol: string, timeframe?: string) => {
+        try {
+          const response = await apiClient.get(`/api/chart-drawings/export/${symbol}`, {
+            params: { timeframe }
+          });
+          return response.data.data;
+        } catch (error) {
+          console.error('Error exporting drawings:', error);
+          set({
+            error: error instanceof Error ? error.message : 'Failed to export drawings'
+          });
+          throw error;
+        }
+      },
+
+      // Local optimistic updates
+      addDrawingLocally: (symbol: string, timeframe: string, drawing: Drawing) => {
+        const key = `${symbol}:${timeframe}`;
+        const current = get().drawings.get(key) || [];
+        const newMap = new Map(get().drawings);
+        newMap.set(key, [...current, drawing]);
+        set({ drawings: newMap });
+      },
+
+      updateDrawingLocally: (symbol: string, timeframe: string, drawing: Drawing) => {
+        const key = `${symbol}:${timeframe}`;
+        const current = get().drawings.get(key) || [];
+        const updated = current.map(d => d.id === drawing.id ? drawing : d);
+        const newMap = new Map(get().drawings);
+        newMap.set(key, updated);
+        set({ drawings: newMap });
+      },
+
+      removeDrawingLocally: (symbol: string, timeframe: string, drawingId: string) => {
+        const key = `${symbol}:${timeframe}`;
+        const current = get().drawings.get(key) || [];
+        const filtered = current.filter(d => d.id !== drawingId);
+        const newMap = new Map(get().drawings);
+        newMap.set(key, filtered);
+        set({ drawings: newMap });
+      },
+    }),
+    { name: 'drawings-store' }
+  )
+);
+```
+
+### 6.2 Hook: `useDrawings.ts`
+
+```typescript
+// apps/frontend/src/modules/trading/hooks/useDrawings.ts
+
+import { useEffect, useRef, useCallback } from 'react';
+import { useDrawingsStore } from '../../../stores/drawingsStore';
+import { useDebouncedCallback } from 'use-debounce';
+import type { Drawing } from '../../../stores/drawingsStore';
+
+export const useDrawings = (symbol: string, timeframe: string) => {
+  const {
+    drawings,
+    loading,
+    error,
+    fetchDrawings,
+    addDrawing,
+    updateDrawing,
+    removeDrawing,
+    clearAllDrawings,
+  } = useDrawingsStore();
+
+  const key = `${symbol}:${timeframe}`;
+  const currentDrawings = drawings.get(key) || [];
+
+  // Fetch on mount and when symbol/timeframe changes
+  useEffect(() => {
+    fetchDrawings(symbol, timeframe);
+  }, [symbol, timeframe]);
+
+  // Debounced save (1 second delay)
+  const debouncedUpdate = useDebouncedCallback(
+    (drawing: Drawing) => {
+      updateDrawing(symbol, timeframe, drawing);
+    },
+    1000
+  );
+
+  // API methods
+  const handleAddDrawing = useCallback(async (drawing: Drawing) => {
+    await addDrawing(symbol, timeframe, drawing);
+  }, [symbol, timeframe, addDrawing]);
+
+  const handleUpdateDrawing = useCallback((drawing: Drawing, immediate = false) => {
+    if (immediate) {
+      updateDrawing(symbol, timeframe, drawing);
+    } else {
+      debouncedUpdate(drawing);
+    }
+  }, [symbol, timeframe, updateDrawing, debouncedUpdate]);
+
+  const handleRemoveDrawing = useCallback(async (drawingId: string) => {
+    await removeDrawing(symbol, timeframe, drawingId);
+  }, [symbol, timeframe, removeDrawing]);
+
+  const handleClearAll = useCallback(async () => {
+    await clearAllDrawings(symbol, timeframe);
+  }, [symbol, timeframe, clearAllDrawings]);
+
+  return {
+    drawings: currentDrawings,
+    loading,
+    error,
+    addDrawing: handleAddDrawing,
+    updateDrawing: handleUpdateDrawing,
+    removeDrawing: handleRemoveDrawing,
+    clearAll: handleClearAll,
+    refetch: () => fetchDrawings(symbol, timeframe),
+  };
+};
+```
+
+### 6.3 Integration with `ChartDrawingToolsPanel.tsx`
+
+```tsx
+// apps/frontend/src/modules/trading/components/ChartDrawingToolsPanel.tsx
+// MODIFICACIÓN: Integrar con useDrawings hook
+
+import { useDrawings } from '../hooks/useDrawings';
+import { useTradingStore } from '../../../stores/tradingStore';
+
+const ChartDrawingToolsPanelWithPersistence: React.FC = () => {
+  const { selectedSymbol, timeframe } = useTradingStore();
+  const {
+    drawings,
+    loading,
+    error,
+    addDrawing,
+    updateDrawing,
+    removeDrawing,
+    clearAll
+  } = useDrawings(selectedSymbol, timeframe);
+
+  const [activeTool, setActiveTool] = useState<DrawingTool | null>(null);
+
+  const handleDrawingAdd = async (drawing: Drawing) => {
+    try {
+      await addDrawing(drawing);
+    } catch (error) {
+      console.error('Failed to save drawing:', error);
+      // Show toast notification
+    }
+  };
+
+  const handleDrawingUpdate = (drawing: Drawing) => {
+    // Debounced auto-save (1 second)
+    updateDrawing(drawing, false);
+  };
+
+  const handleDrawingRemove = async (drawingId: string) => {
+    try {
+      await removeDrawing(drawingId);
+    } catch (error) {
+      console.error('Failed to delete drawing:', error);
+    }
+  };
+
+  const handleClearAll = async () => {
+    if (confirm(`Delete all ${drawings.length} drawings?`)) {
+      try {
+        await clearAll();
+      } catch (error) {
+        console.error('Failed to clear drawings:', error);
+      }
+    }
+  };
+
+  return (
+    <ChartDrawingToolsPanel
+      drawings={drawings}
+      activeTool={activeTool}
+      onToolSelect={setActiveTool}
+      onDrawingAdd={handleDrawingAdd}
+      onDrawingUpdate={handleDrawingUpdate}
+      onDrawingRemove={handleDrawingRemove}
+      onClearAll={handleClearAll}
+    />
+  );
+};
+```
+
+---
+
+## 7. Tipos TypeScript
+
+### 7.1 Frontend Types
+
+```typescript
+// apps/frontend/src/types/drawings.types.ts
+
+export type DrawingTool =
+  | 'trendline'
+  | 'horizontal'
+  | 'vertical'
+  | 'rectangle'
+  | 'circle'
+  | 'fibonacci'
+  | 'text'
+  | 'arrow'
+  | 'channel'
+  | 'pitchfork';
+
+export interface DrawingPoint {
+  x: number;
+  y: number;
+  price?: number;
+  time?: string;
+}
+
+export interface Drawing {
+  id: string;
+  tool: DrawingTool;
+  color: string;
+  lineWidth: number;
+  visible: boolean;
+  locked: boolean;
+  label?: string;
+  points: DrawingPoint[];
+  createdAt: string;
+}
+
+export interface ServerDrawing {
+  id: string;
+  user_id: string;
+  symbol: string;
+  timeframe: string;
+  tool_type: DrawingTool;
+  label?: string;
+  drawing_data: Drawing;
+  visible: boolean;
+  locked: boolean;
+  created_at: string;
+  updated_at: string;
+}
+```
+
+---
+
+## 8. Performance Optimizations
+
+### 8.1 Auto-Save Strategy
+
+- **Debounced Save:** 1 segundo de delay después del último cambio
+- **Immediate Save:** Eventos críticos (delete, lock, visibility toggle)
+- **Optimistic Updates:** UI actualiza inmediatamente, rollback en error
+
+### 8.2 Caching
+
+- Zustand store mantiene caché por `symbol:timeframe`
+- Re-fetch solo cuando cambia symbol/timeframe
+- LocalStorage backup (opcional, para offline mode)
+
+### 8.3 Database Indexes
+
+- Index compuesto `(user_id, symbol, timeframe)` para queries rápidas
+- GIN index en `drawing_data` JSONB para búsquedas por propiedades
+
+---
+
+## 9. Testing Checklist
+
+### Backend Tests
+- [ ] Create drawing with valid data
+- [ ] Create drawing with missing fields (validation)
+- [ ] Fetch drawings by symbol
+- [ ] Fetch drawings by symbol + timeframe
+- [ ] Update drawing (color, position, lock)
+- [ ] Delete drawing
+- [ ] Delete all drawings for symbol
+- [ ] Unauthorized access (different user)
+- [ ] Import/export JSON
+- [ ] JSONB query performance (>1000 drawings)
+
+### Frontend Tests
+- [ ] Draw line, save, reload → persists
+- [ ] Update color → auto-saves after 1 second
+- [ ] Delete drawing → removed from DB
+- [ ] Lock drawing → prevents edits
+- [ ] Hide drawing → visibility toggle
+- [ ] Clear all → confirms and deletes
+- [ ] Switch symbol → loads different drawings
+- [ ] Switch timeframe → filters correctly
+- [ ] Offline mode → queues operations
+- [ ] Concurrent edits → conflict resolution
+
+---
+
+## 10. Roadmap de Implementación
+
+### Fase 1: Backend Foundation (1h)
+1. Crear tabla `chart_drawings` en PostgreSQL
+2. Implementar `ChartDrawingsController` con CRUD básico
+3. Agregar rutas y middleware de autenticación
+4. Test con Postman/Thunder Client
+
+### Fase 2: Frontend Store (1h)
+1. Crear `drawingsStore.ts` con Zustand
+2. Implementar optimistic updates
+3. Crear `useDrawings` hook con debounce
+4. Test con React DevTools
+
+### Fase 3: Integration (1h)
+1. Modificar `ChartDrawingToolsPanel` para usar hook
+2. Conectar eventos (add, update, delete)
+3. Test end-to-end
+4. Agregar notificaciones de error/éxito
+
+---
+
+## 11. Referencias
+
+- **Componente Actual:** `apps/frontend/src/modules/trading/components/ChartDrawingToolsPanel.tsx` (420 líneas)
+- **Código Backend:** `apps/backend/src/controllers/chart-drawings.controller.ts` (a crear)
+- **Store:** `apps/frontend/src/stores/drawingsStore.ts` (a crear)
+- **Hook:** `apps/frontend/src/modules/trading/hooks/useDrawings.ts` (a crear)
+- **US:** `US-TRD-010-persistir-dibujos.md`
+
+---
+
+**Última actualización:** 2026-01-25
+**Responsable:** Frontend Lead + Backend Engineer
+
diff --git a/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-011-market-bias-indicator.md b/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-011-market-bias-indicator.md
new file mode 100644
index 0000000..4bba743
--- /dev/null
+++ b/docs/02-definicion-modulos/OQI-003-trading-charts/especificaciones/ET-TRD-011-market-bias-indicator.md
@@ -0,0 +1,654 @@
+# ET-TRD-011: Market Bias Indicator
+
+**Versión:** 1.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-003 - Trading y Charts
+**Componente:** Frontend Component + Backend Calculation
+**Estado:** 🔴 No Implementado (especificación nueva)
+**Prioridad:** P3
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-TRD-011 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-003 |
+| **US Relacionada** | US-TRD-011 (Ver Sesgo de Mercado Multi-Timeframe) |
+| **Componente Frontend** | `MarketBiasIndicator.tsx` (a crear) |
+| **Componente Backend** | `/api/market-bias/:symbol` (a crear) |
+| **Complejidad** | Media (análisis multi-timeframe + cálculos técnicos) |
+| **Esfuerzo Estimado** | 2 horas |
+
+---
+
+## 1. Descripción General
+
+**Market Bias Indicator** es un indicador de sesgo de mercado que muestra la dirección predominante del precio a través de múltiples timeframes, utilizando una combinación de:
+
+- **Moving Averages (MA):** Tendencia basada en EMAs (20, 50, 200)
+- **RSI:** Momentum (sobrecompra/sobreventa)
+- **MACD:** Divergencia y señales de cruce
+- **Price Action:** Higher Highs/Lower Lows
+- **Volume Trend:** Confirmación de volumen
+
+### Objetivo
+
+Proporcionar una visión rápida y clara del sesgo del mercado en múltiples timeframes (1m, 5m, 15m, 1h, 4h, 1d) para ayudar a los traders a:
+
+✅ Identificar la tendencia dominante
+✅ Alinear trades con el sesgo del mercado
+✅ Detectar divergencias entre timeframes
+✅ Confirmar setups de entrada con bias
+
+---
+
+## 2. Arquitectura del Indicador
+
+### 2.1 Diagrama de Flujo
+
+```
+┌──────────────────────────────────────────────────────────┐
+│          Market Bias Indicator Architecture              │
+├──────────────────────────────────────────────────────────┤
+│                                                           │
+│  Market Data (BTCUSD, Multiple Timeframes)               │
+│         │                                                 │
+│         v                                                 │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Fetch Candles for 6 Timeframes                    │  │
+│  │  • 1m (last 100 candles)                           │  │
+│  │  • 5m (last 100 candles)                           │  │
+│  │  • 15m (last 100 candles)                          │  │
+│  │  • 1h (last 100 candles)                           │  │
+│  │  • 4h (last 100 candles)                           │  │
+│  │  • 1d (last 100 candles)                           │  │
+│  └──────────────┬─────────────────────────────────────┘  │
+│                 │                                         │
+│         ┌───────┼───────┬───────┬───────┬───────┐        │
+│         │       │       │       │       │       │        │
+│         v       v       v       v       v       v        │
+│       1m      5m     15m      1h      4h      1d        │
+│         │       │       │       │       │       │        │
+│         v       v       v       v       v       v        │
+│  ┌─────────────────────────────────────────────────┐    │
+│  │  Calculate Technical Indicators (per TF)        │    │
+│  │  • EMA 20, 50, 200                              │    │
+│  │  • RSI (14 period)                              │    │
+│  │  • MACD (12, 26, 9)                             │    │
+│  │  • Price trend (HH/HL vs LH/LL)                 │    │
+│  │  • Volume trend (avg volume vs current)         │    │
+│  └──────────────┬──────────────────────────────────┘    │
+│                 │                                         │
+│                 v                                         │
+│  ┌─────────────────────────────────────────────────┐    │
+│  │  Calculate Bias Score (per TF)                  │    │
+│  │  • MA Bias: +1 if price > all MAs, -1 if <     │    │
+│  │  • RSI Bias: +1 if > 50, -1 if < 50            │    │
+│  │  • MACD Bias: +1 if histogram > 0, -1 if < 0   │    │
+│  │  • Trend Bias: +1 if HH/HL, -1 if LH/LL        │    │
+│  │  Total Score: Sum / 4 = [-1.0, +1.0]           │    │
+│  └──────────────┬──────────────────────────────────┘    │
+│                 │                                         │
+│                 v                                         │
+│  ┌─────────────────────────────────────────────────┐    │
+│  │  Aggregate Multi-Timeframe Bias                │    │
+│  │  • 1m:  +0.75 (BULLISH)                         │    │
+│  │  • 5m:  +0.50 (BULLISH)                         │    │
+│  │  • 15m: +0.25 (NEUTRAL)                         │    │
+│  │  • 1h:  -0.25 (NEUTRAL)                         │    │
+│  │  • 4h:  -0.50 (BEARISH)                         │    │
+│  │  • 1d:  -0.75 (BEARISH)                         │    │
+│  │  Overall: +0.00 (NEUTRAL/CONFLICTED)            │    │
+│  └──────────────┬──────────────────────────────────┘    │
+│                 │                                         │
+│                 v                                         │
+│  ┌─────────────────────────────────────────────────┐    │
+│  │  Frontend Display                               │    │
+│  │  • Visual grid (6 timeframes)                   │    │
+│  │  • Color coding (green/red/yellow)              │    │
+│  │  • Alignment indicator                          │    │
+│  │  • Recommended action                           │    │
+│  └─────────────────────────────────────────────────┘    │
+│                                                           │
+└──────────────────────────────────────────────────────────┘
+```
+
+---
+
+## 3. Cálculo de Bias Score
+
+### 3.1 Componentes del Score (per Timeframe)
+
+#### Component 1: Moving Average Bias
+
+```typescript
+function calculateMABias(close: number, ema20: number, ema50: number, ema200: number): number {
+  let score = 0;
+
+  // Price above all MAs = strong bullish
+  if (close > ema20 && close > ema50 && close > ema200) {
+    score = 1.0;
+  }
+  // Price below all MAs = strong bearish
+  else if (close < ema20 && close < ema50 && close < ema200) {
+    score = -1.0;
+  }
+  // Price between MAs = mixed/neutral
+  else if (close > ema20 && close > ema50) {
+    score = 0.5;  // Above short-term MAs
+  }
+  else if (close < ema20 && close < ema50) {
+    score = -0.5;  // Below short-term MAs
+  }
+  else {
+    score = 0.0;  // Choppy/neutral
+  }
+
+  return score;
+}
+```
+
+**Interpretation:**
+- +1.0 → Price above ALL MAs (strong uptrend)
+- +0.5 → Price above short-term MAs (moderate uptrend)
+- 0.0 → Price mixed between MAs (neutral/range)
+- -0.5 → Price below short-term MAs (moderate downtrend)
+- -1.0 → Price below ALL MAs (strong downtrend)
+
+#### Component 2: RSI Bias
+
+```typescript
+function calculateRSIBias(rsi: number): number {
+  if (rsi > 70) return 1.0;      // Overbought = strong bullish momentum
+  if (rsi > 60) return 0.75;     // Bullish momentum
+  if (rsi > 50) return 0.5;      // Slight bullish bias
+  if (rsi === 50) return 0.0;    // Neutral
+  if (rsi > 40) return -0.5;     // Slight bearish bias
+  if (rsi > 30) return -0.75;    // Bearish momentum
+  return -1.0;                    // Oversold = strong bearish momentum
+}
+```
+
+#### Component 3: MACD Bias
+
+```typescript
+function calculateMACDBias(macdLine: number, signalLine: number, histogram: number): number {
+  let score = 0;
+
+  // MACD above signal and histogram positive = bullish
+  if (macdLine > signalLine && histogram > 0) {
+    score = 1.0;
+  }
+  // MACD below signal and histogram negative = bearish
+  else if (macdLine < signalLine && histogram < 0) {
+    score = -1.0;
+  }
+  // MACD above signal but histogram negative = weakening bullish
+  else if (macdLine > signalLine && histogram < 0) {
+    score = 0.25;
+  }
+  // MACD below signal but histogram positive = weakening bearish
+  else if (macdLine < signalLine && histogram > 0) {
+    score = -0.25;
+  }
+
+  return score;
+}
+```
+
+#### Component 4: Price Action Bias (Higher Highs / Lower Lows)
+
+```typescript
+function calculatePriceActionBias(candles: Candle[]): number {
+  const last10 = candles.slice(-10);
+
+  const highs = last10.map(c => c.high);
+  const lows = last10.map(c => c.low);
+
+  // Count higher highs (HH)
+  let HH = 0;
+  for (let i = 1; i < highs.length; i++) {
+    if (highs[i] > highs[i - 1]) HH++;
+  }
+
+  // Count lower lows (LL)
+  let LL = 0;
+  for (let i = 1; i < lows.length; i++) {
+    if (lows[i] < lows[i - 1]) LL++;
+  }
+
+  // HH dominate = uptrend
+  if (HH > LL + 2) return 1.0;
+  if (HH > LL) return 0.5;
+
+  // LL dominate = downtrend
+  if (LL > HH + 2) return -1.0;
+  if (LL > HH) return -0.5;
+
+  // Equal = neutral/range
+  return 0.0;
+}
+```
+
+### 3.2 Final Bias Score (per Timeframe)
+
+```typescript
+function calculateBiasScore(
+  candles: Candle[],
+  ema20: number,
+  ema50: number,
+  ema200: number,
+  rsi: number,
+  macd: MACD
+): BiasResult {
+  const close = candles[candles.length - 1].close;
+
+  const maBias = calculateMABias(close, ema20, ema50, ema200);
+  const rsiBias = calculateRSIBias(rsi);
+  const macdBias = calculateMACDBias(macd.macd, macd.signal, macd.histogram);
+  const paBias = calculatePriceActionBias(candles);
+
+  // Weighted average (all equal weight for simplicity)
+  const totalScore = (maBias + rsiBias + macdBias + paBias) / 4;
+
+  return {
+    score: totalScore,  // -1.0 to +1.0
+    direction: totalScore > 0.3 ? 'BULLISH' : totalScore < -0.3 ? 'BEARISH' : 'NEUTRAL',
+    strength: Math.abs(totalScore) * 100,  // 0-100%
+    components: {
+      ma: maBias,
+      rsi: rsiBias,
+      macd: macdBias,
+      priceAction: paBias
+    }
+  };
+}
+```
+
+---
+
+## 4. API Endpoint
+
+### 4.1 Request
+
+```http
+GET /api/market-bias/:symbol
+Query params: ?timeframes=1m,5m,15m,1h,4h,1d
+```
+
+### 4.2 Response
+
+```json
+{
+  "symbol": "BTCUSD",
+  "timestamp": "2026-01-25T10:30:15Z",
+  "biases": [
+    {
+      "timeframe": "1m",
+      "score": 0.75,
+      "direction": "BULLISH",
+      "strength": 75,
+      "components": {
+        "ma": 1.0,
+        "rsi": 0.75,
+        "macd": 1.0,
+        "priceAction": 0.25
+      },
+      "currentPrice": 43250.50,
+      "indicators": {
+        "ema20": 43100.00,
+        "ema50": 42950.00,
+        "ema200": 42500.00,
+        "rsi": 68.5,
+        "macd": {
+          "macd": 125.3,
+          "signal": 98.7,
+          "histogram": 26.6
+        }
+      }
+    },
+    {
+      "timeframe": "5m",
+      "score": 0.50,
+      "direction": "BULLISH",
+      "strength": 50,
+      "components": { /* ... */ }
+    },
+    {
+      "timeframe": "15m",
+      "score": 0.25,
+      "direction": "NEUTRAL",
+      "strength": 25,
+      "components": { /* ... */ }
+    },
+    {
+      "timeframe": "1h",
+      "score": -0.25,
+      "direction": "NEUTRAL",
+      "strength": 25,
+      "components": { /* ... */ }
+    },
+    {
+      "timeframe": "4h",
+      "score": -0.50,
+      "direction": "BEARISH",
+      "strength": 50,
+      "components": { /* ... */ }
+    },
+    {
+      "timeframe": "1d",
+      "score": -0.75,
+      "direction": "BEARISH",
+      "strength": 75,
+      "components": { /* ... */ }
+    }
+  ],
+  "overall": {
+    "score": 0.00,
+    "direction": "CONFLICTED",
+    "alignment": "LOW",  // ALIGNED / MODERATE / LOW / CONFLICTED
+    "recommendation": "WAIT - Higher timeframes bearish, lower bullish. Wait for alignment."
+  }
+}
+```
+
+---
+
+## 5. Frontend Component
+
+### 5.1 Component Code
+
+```tsx
+// apps/frontend/src/modules/trading/components/MarketBiasIndicator.tsx
+
+import React, { useEffect, useState } from 'react';
+import { TrendingUp, TrendingDown, Minus, AlertTriangle, CheckCircle2 } from 'lucide-react';
+import { apiClient } from '@/lib/apiClient';
+
+interface BiasData {
+  timeframe: string;
+  score: number;
+  direction: 'BULLISH' | 'BEARISH' | 'NEUTRAL';
+  strength: number;
+  components: {
+    ma: number;
+    rsi: number;
+    macd: number;
+    priceAction: number;
+  };
+}
+
+interface MarketBiasResponse {
+  symbol: string;
+  biases: BiasData[];
+  overall: {
+    score: number;
+    direction: string;
+    alignment: 'ALIGNED' | 'MODERATE' | 'LOW' | 'CONFLICTED';
+    recommendation: string;
+  };
+}
+
+interface MarketBiasIndicatorProps {
+  symbol: string;
+  timeframes?: string[];
+  onBiasChange?: (overall: any) => void;
+  refreshInterval?: number;  // Refresh every N seconds
+}
+
+export const MarketBiasIndicator: React.FC<MarketBiasIndicatorProps> = ({
+  symbol,
+  timeframes = ['1m', '5m', '15m', '1h', '4h', '1d'],
+  onBiasChange,
+  refreshInterval = 60  // Default 60 seconds
+}) => {
+  const [biasData, setBiasData] = useState<MarketBiasResponse | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    fetchBias();
+
+    // Auto-refresh
+    const interval = setInterval(() => {
+      fetchBias();
+    }, refreshInterval * 1000);
+
+    return () => clearInterval(interval);
+  }, [symbol, refreshInterval]);
+
+  const fetchBias = async () => {
+    setLoading(true);
+    setError(null);
+
+    try {
+      const response = await apiClient.get(`/api/market-bias/${symbol}`, {
+        params: { timeframes: timeframes.join(',') }
+      });
+
+      setBiasData(response.data);
+      onBiasChange?.(response.data.overall);
+    } catch (err) {
+      console.error('Error fetching market bias:', err);
+      setError('Failed to load market bias');
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const getBiasColor = (direction: string) => {
+    switch (direction) {
+      case 'BULLISH': return 'text-green-400 bg-green-500/10 border-green-500/30';
+      case 'BEARISH': return 'text-red-400 bg-red-500/10 border-red-500/30';
+      case 'NEUTRAL': return 'text-yellow-400 bg-yellow-500/10 border-yellow-500/30';
+      default: return 'text-gray-400 bg-gray-500/10 border-gray-500/30';
+    }
+  };
+
+  const getBiasIcon = (direction: string) => {
+    switch (direction) {
+      case 'BULLISH': return <TrendingUp className="w-4 h-4" />;
+      case 'BEARISH': return <TrendingDown className="w-4 h-4" />;
+      default: return <Minus className="w-4 h-4" />;
+    }
+  };
+
+  const getAlignmentIcon = (alignment: string) => {
+    if (alignment === 'ALIGNED') return <CheckCircle2 className="w-5 h-5 text-green-400" />;
+    if (alignment === 'CONFLICTED') return <AlertTriangle className="w-5 h-5 text-red-400" />;
+    return <Minus className="w-5 h-5 text-yellow-400" />;
+  };
+
+  if (loading && !biasData) {
+    return (
+      <div className="bg-gray-800/50 rounded-xl border border-gray-700 p-4">
+        <div className="animate-pulse">Loading market bias...</div>
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="bg-gray-800/50 rounded-xl border border-red-500/30 p-4">
+        <span className="text-red-400">{error}</span>
+      </div>
+    );
+  }
+
+  if (!biasData) return null;
+
+  return (
+    <div className="bg-gray-800/50 rounded-xl border border-gray-700 p-4 space-y-4">
+      {/* Header */}
+      <div className="flex items-center justify-between">
+        <div>
+          <h3 className="font-semibold text-white">Market Bias</h3>
+          <p className="text-xs text-gray-500">{symbol} - Multi-Timeframe Analysis</p>
+        </div>
+        {getAlignmentIcon(biasData.overall.alignment)}
+      </div>
+
+      {/* Overall Bias */}
+      <div className={`p-3 rounded-lg border ${getBiasColor(biasData.overall.direction)}`}>
+        <div className="flex items-center justify-between mb-2">
+          <div className="flex items-center gap-2">
+            {getBiasIcon(biasData.overall.direction)}
+            <span className="font-bold">{biasData.overall.direction}</span>
+          </div>
+          <span className="text-sm">{biasData.overall.alignment} Alignment</span>
+        </div>
+        <p className="text-xs opacity-80">{biasData.overall.recommendation}</p>
+      </div>
+
+      {/* Timeframe Grid */}
+      <div className="grid grid-cols-3 gap-2">
+        {biasData.biases.map((bias) => (
+          <div
+            key={bias.timeframe}
+            className={`p-2 rounded-lg border transition-all ${getBiasColor(bias.direction)}`}
+          >
+            <div className="flex items-center justify-between mb-1">
+              <span className="text-xs font-bold">{bias.timeframe}</span>
+              {getBiasIcon(bias.direction)}
+            </div>
+
+            {/* Strength Bar */}
+            <div className="w-full h-1.5 bg-gray-800 rounded-full overflow-hidden mb-1">
+              <div
+                className={`h-full ${
+                  bias.direction === 'BULLISH' ? 'bg-green-500' :
+                  bias.direction === 'BEARISH' ? 'bg-red-500' :
+                  'bg-yellow-500'
+                }`}
+                style={{ width: `${bias.strength}%` }}
+              />
+            </div>
+
+            <div className="text-xs opacity-70">{bias.strength.toFixed(0)}% strength</div>
+          </div>
+        ))}
+      </div>
+
+      {/* Component Breakdown (Expandable) */}
+      <details className="text-xs">
+        <summary className="cursor-pointer text-gray-500 hover:text-gray-400">
+          View Component Breakdown
+        </summary>
+        <div className="mt-2 space-y-2">
+          {biasData.biases.map((bias) => (
+            <div key={bias.timeframe} className="p-2 bg-gray-900/50 rounded">
+              <div className="font-bold mb-1">{bias.timeframe}</div>
+              <div className="grid grid-cols-4 gap-2 text-xs">
+                <div>
+                  <span className="text-gray-500">MA:</span>
+                  <span className={bias.components.ma > 0 ? 'text-green-400' : 'text-red-400'}>
+                    {' '}{bias.components.ma.toFixed(2)}
+                  </span>
+                </div>
+                <div>
+                  <span className="text-gray-500">RSI:</span>
+                  <span className={bias.components.rsi > 0 ? 'text-green-400' : 'text-red-400'}>
+                    {' '}{bias.components.rsi.toFixed(2)}
+                  </span>
+                </div>
+                <div>
+                  <span className="text-gray-500">MACD:</span>
+                  <span className={bias.components.macd > 0 ? 'text-green-400' : 'text-red-400'}>
+                    {' '}{bias.components.macd.toFixed(2)}
+                  </span>
+                </div>
+                <div>
+                  <span className="text-gray-500">PA:</span>
+                  <span className={bias.components.priceAction > 0 ? 'text-green-400' : 'text-red-400'}>
+                    {' '}{bias.components.priceAction.toFixed(2)}
+                  </span>
+                </div>
+              </div>
+            </div>
+          ))}
+        </div>
+      </details>
+    </div>
+  );
+};
+
+export default MarketBiasIndicator;
+```
+
+---
+
+## 6. Uso e Integración
+
+### 6.1 Standalone
+
+```tsx
+import MarketBiasIndicator from '@/modules/trading/components/MarketBiasIndicator';
+
+function TradingDashboard() {
+  return (
+    <div>
+      <MarketBiasIndicator
+        symbol="BTCUSD"
+        timeframes={['1m', '5m', '15m', '1h', '4h', '1d']}
+        refreshInterval={60}  // Refresh every 60 seconds
+        onBiasChange={(overall) => {
+          console.log('Overall bias changed:', overall.direction);
+        }}
+      />
+    </div>
+  );
+}
+```
+
+### 6.2 Integration with Trading Alerts
+
+```tsx
+function TradingPage() {
+  const handleBiasChange = (overall: any) => {
+    if (overall.alignment === 'ALIGNED') {
+      showNotification(`${overall.direction} bias aligned across timeframes!`);
+    }
+  };
+
+  return (
+    <MarketBiasIndicator
+      symbol="BTCUSD"
+      onBiasChange={handleBiasChange}
+    />
+  );
+}
+```
+
+---
+
+## 7. Roadmap de Implementación
+
+### Fase 1: Backend API (1h)
+1. Crear endpoint `/api/market-bias/:symbol`
+2. Implementar cálculo de indicadores (EMA, RSI, MACD)
+3. Implementar scoring logic
+4. Test con múltiples símbolos
+
+### Fase 2: Frontend Component (1h)
+1. Crear `MarketBiasIndicator.tsx`
+2. Grid de timeframes con color coding
+3. Overall bias display
+4. Component breakdown (expandable)
+5. Auto-refresh logic
+
+---
+
+## 8. Referencias
+
+- **Componente:** `apps/frontend/src/modules/trading/components/MarketBiasIndicator.tsx` (a crear)
+- **Backend:** `apps/backend/src/services/marketBias.service.ts` (a crear)
+- **US:** `US-TRD-011-market-bias-indicator.md`
+
+---
+
+**Última actualización:** 2026-01-25
+**Responsable:** Frontend Lead + ML Engineer
+
diff --git a/docs/02-definicion-modulos/OQI-006-ml-signals/especificaciones/ET-ML-008-ict-analysis-card.md b/docs/02-definicion-modulos/OQI-006-ml-signals/especificaciones/ET-ML-008-ict-analysis-card.md
new file mode 100644
index 0000000..648812a
--- /dev/null
+++ b/docs/02-definicion-modulos/OQI-006-ml-signals/especificaciones/ET-ML-008-ict-analysis-card.md
@@ -0,0 +1,615 @@
+# ET-ML-008: ICT/SMC Analysis Card - Comprehensive Spec
+
+**Versión:** 2.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-006 - ML Signals y Predicciones
+**Componente:** Frontend + Backend ML Engine
+**Estado:** ✅ Implementado (documentación retroactiva expandida)
+**Prioridad:** P3
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-ML-008 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-006 |
+| **US Relacionada** | US-ML-008 (Ver Análisis ICT/SMC) |
+| **Componente Frontend** | `ICTAnalysisCard.tsx` (294 líneas) |
+| **Backend Endpoint** | `/api/ml/ict-analysis/:symbol` |
+| **Metodología** | Inner Circle Trader (ICT) + Smart Money Concepts (SMC) |
+| **Complejidad** | Alta (análisis institucional multi-factor) |
+
+---
+
+## 1. Descripción General
+
+**ICT/SMC Analysis** es un sistema de análisis técnico avanzado que detecta el comportamiento de "dinero institucional" (Smart Money) en el mercado utilizando:
+
+- **Order Blocks:** Zonas donde instituciones acumularon órdenes
+- **Fair Value Gaps (FVG):** Ineficiencias de precio que tienden a rellenarse
+- **Premium/Discount Zones:** Áreas de sobrecompra/sobreventa según Fibonacci
+- **Liquidity Sweeps:** Cacería de liquidez retail antes de movimientos institucionales
+- **Market Structure Shifts:** Cambios en tendencia (Higher Highs → Lower Lows)
+
+### Conceptos ICT/SMC
+
+**Inner Circle Trader (ICT):** Metodología desarrollada por Michael J. Huddleston que enseña cómo identificar el comportamiento de grandes instituciones ("Smart Money") en los mercados financieros.
+
+**Smart Money Concepts (SMC):** Framework derivado de ICT que se enfoca en detectar acumulación, manipulación y distribución institucional.
+
+---
+
+## 2. Arquitectura de Análisis
+
+### 2.1 Flujo de Datos ICT
+
+```
+┌────────────────────────────────────────────────────────────────┐
+│              ICT/SMC Analysis Architecture                     │
+├────────────────────────────────────────────────────────────────┤
+│                                                                 │
+│  Market Data (BTCUSD, 1h candles, last 200)                    │
+│         │                                                       │
+│         v                                                       │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Step 1: Identify Market Structure                       │  │
+│  │  • Higher Highs / Higher Lows (uptrend)                  │  │
+│  │  • Lower Highs / Lower Lows (downtrend)                  │  │
+│  │  • Break of Structure (BOS)                              │  │
+│  │  • Change of Character (CHoCH)                           │  │
+│  └──────────────┬───────────────────────────────────────────┘  │
+│                 │                                               │
+│                 v                                               │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Step 2: Detect Order Blocks                             │  │
+│  │  • Last bearish candle before strong move up (bullish OB)│  │
+│  │  • Last bullish candle before strong move down (bearish) │  │
+│  │  • Validate with volume spike                            │  │
+│  │  • Mark as "fresh" (untouched) or "touched"              │  │
+│  └──────────────┬───────────────────────────────────────────┘  │
+│                 │                                               │
+│                 v                                               │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Step 3: Identify Fair Value Gaps (FVG)                  │  │
+│  │  • 3-candle pattern with gap                             │  │
+│  │  • Candle 1 high < Candle 3 low (bullish FVG)            │  │
+│  │  • Candle 1 low > Candle 3 high (bearish FVG)            │  │
+│  │  • Size >= 0.3% of price                                 │  │
+│  └──────────────┬───────────────────────────────────────────┘  │
+│                 │                                               │
+│                 v                                               │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Step 4: Calculate Premium/Discount Zones (Fibonacci)    │  │
+│  │  • High = Recent swing high                              │  │
+│  │  • Low = Recent swing low                                │  │
+│  │  • Equilibrium = 0.5 Fib (50%)                           │  │
+│  │  • Premium = 0.5 - 1.0 Fib (sell zone)                   │  │
+│  │  • Discount = 0.0 - 0.5 Fib (buy zone)                   │  │
+│  └──────────────┬───────────────────────────────────────────┘  │
+│                 │                                               │
+│                 v                                               │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Step 5: Determine Market Bias                           │  │
+│  │  • Bullish: Higher highs, price in discount, bullish OBs │  │
+│  │  • Bearish: Lower lows, price in premium, bearish OBs    │  │
+│  │  • Neutral: Choppy structure, no clear bias              │  │
+│  │  • Confidence = weighted score (0.0 - 1.0)               │  │
+│  └──────────────┬───────────────────────────────────────────┘  │
+│                 │                                               │
+│                 v                                               │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Step 6: Generate Trade Setup                            │  │
+│  │  • Entry Zone = Nearest fresh OB in bias direction       │  │
+│  │  • Stop Loss = Below OB low (buy) / Above OB high (sell) │  │
+│  │  • TP1 = Equilibrium (0.5 Fib)                           │  │
+│  │  • TP2 = Next FVG or OB                                  │  │
+│  │  • TP3 = Opposite premium/discount zone                  │  │
+│  │  • Risk:Reward = (TP - Entry) / (Entry - SL)             │  │
+│  └──────────────┬───────────────────────────────────────────┘  │
+│                 │                                               │
+│                 v                                               │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Step 7: Calculate Setup Score (0-100)                   │  │
+│  │  • Market structure clarity: 30 pts                      │  │
+│  │  • Fresh order blocks: 25 pts                            │  │
+│  │  • Unfilled FVGs: 20 pts                                 │  │
+│  │  • Risk:Reward > 2: 15 pts                               │  │
+│  │  • Volume confirmation: 10 pts                           │  │
+│  └──────────────┬───────────────────────────────────────────┘  │
+│                 │                                               │
+│                 v                                               │
+│  ┌──────────────────────────────────────────────────────────┐  │
+│  │  Output: ICT Analysis Object                             │  │
+│  │  • Bias: BULLISH (78% confidence)                        │  │
+│  │  • 3 Fresh OBs, 2 Unfilled FVGs                          │  │
+│  │  • Entry: 43200-43250, SL: 43100, TP1: 43500             │  │
+│  │  • R:R = 2.5, Score: 72/100                              │  │
+│  └──────────────────────────────────────────────────────────┘  │
+│                                                                 │
+└────────────────────────────────────────────────────────────────┘
+```
+
+---
+
+## 3. Conceptos Técnicos ICT/SMC
+
+### 3.1 Order Blocks (OB)
+
+**Definición:** Zona de precio donde instituciones colocaron grandes órdenes, creando soporte/resistencia institucional.
+
+**Detección:**
+
+```python
+def detect_order_blocks(candles: List[Candle]) -> List[OrderBlock]:
+    order_blocks = []
+
+    for i in range(2, len(candles)):
+        # Bullish Order Block
+        # Last bearish candle before strong bullish move
+        if (candles[i].close > candles[i].open and  # Current is bullish
+            candles[i-1].close < candles[i-1].open and  # Previous is bearish
+            candles[i].close > candles[i-1].high):  # Strong move up
+
+            ob = OrderBlock(
+                type='bullish',
+                high=candles[i-1].high,
+                low=candles[i-1].low,
+                midpoint=(candles[i-1].high + candles[i-1].low) / 2,
+                strength=calculate_ob_strength(candles, i-1),
+                valid=True,
+                touched=False
+            )
+            order_blocks.append(ob)
+
+        # Bearish Order Block
+        # Last bullish candle before strong bearish move
+        if (candles[i].close < candles[i].open and  # Current is bearish
+            candles[i-1].close > candles[i-1].open and  # Previous is bullish
+            candles[i].close < candles[i-1].low):  # Strong move down
+
+            ob = OrderBlock(
+                type='bearish',
+                high=candles[i-1].high,
+                low=candles[i-1].low,
+                midpoint=(candles[i-1].high + candles[i-1].low) / 2,
+                strength=calculate_ob_strength(candles, i-1),
+                valid=True,
+                touched=False
+            )
+            order_blocks.append(ob)
+
+    return order_blocks
+```
+
+**Validación:**
+- **Fresh (no tocado):** OB nunca fue retestado → Mayor probabilidad de reacción
+- **Touched:** OB ya fue tocado → Menor fuerza
+- **Strength:** Basado en volumen, tamaño del candle, distancia al precio actual
+
+### 3.2 Fair Value Gaps (FVG)
+
+**Definición:** Gap de precio causado por movimiento institucional rápido que "salta" niveles de precio, creando ineficiencia que el mercado tiende a rellenar.
+
+**Detección:**
+
+```python
+def detect_fair_value_gaps(candles: List[Candle]) -> List[FairValueGap]:
+    fvgs = []
+
+    for i in range(1, len(candles) - 1):
+        # Bullish FVG: Candle 0 high < Candle 2 low
+        if candles[i-1].high < candles[i+1].low:
+            gap_size = candles[i+1].low - candles[i-1].high
+            gap_size_percent = (gap_size / candles[i].close) * 100
+
+            if gap_size_percent >= 0.3:  # At least 0.3% gap
+                fvg = FairValueGap(
+                    type='bullish',
+                    high=candles[i+1].low,
+                    low=candles[i-1].high,
+                    midpoint=(candles[i+1].low + candles[i-1].high) / 2,
+                    size_percent=gap_size_percent,
+                    filled=False
+                )
+                fvgs.append(fvg)
+
+        # Bearish FVG: Candle 0 low > Candle 2 high
+        if candles[i-1].low > candles[i+1].high:
+            gap_size = candles[i-1].low - candles[i+1].high
+            gap_size_percent = (gap_size / candles[i].close) * 100
+
+            if gap_size_percent >= 0.3:
+                fvg = FairValueGap(
+                    type='bearish',
+                    high=candles[i-1].low,
+                    low=candles[i+1].high,
+                    midpoint=(candles[i-1].low + candles[i+1].high) / 2,
+                    size_percent=gap_size_percent,
+                    filled=False
+                )
+                fvgs.append(fvg)
+
+    return fvgs
+```
+
+**Tipos de FVG:**
+- **Bullish FVG:** Gap hacia arriba → Precio debería volver a llenar el gap desde abajo
+- **Bearish FVG:** Gap hacia abajo → Precio debería volver a llenar desde arriba
+- **Filled:** Gap rellenado al 50% → Ya no es válido
+
+### 3.3 Premium/Discount Zones (Fibonacci)
+
+**Definición:** Zonas basadas en Fibonacci desde el swing high hasta swing low reciente que indican si el precio está "caro" (premium) o "barato" (discount).
+
+```python
+def calculate_premium_discount_zones(candles: List[Candle]) -> dict:
+    # Find recent swing high/low (last 50 candles)
+    recent = candles[-50:]
+    swing_high = max([c.high for c in recent])
+    swing_low = min([c.low for c in recent])
+
+    range_size = swing_high - swing_low
+
+    return {
+        'equilibrium': swing_low + (range_size * 0.5),  # 50% Fib
+        'premium_zone': {
+            'low': swing_low + (range_size * 0.5),  # 50% Fib
+            'high': swing_high  # 100% Fib
+        },
+        'discount_zone': {
+            'low': swing_low,  # 0% Fib
+            'high': swing_low + (range_size * 0.5)  # 50% Fib
+        }
+    }
+```
+
+**Trading Logic:**
+- **In Premium Zone → Look for SELL setups** (price is expensive)
+- **In Discount Zone → Look for BUY setups** (price is cheap)
+- **At Equilibrium → Wait for direction confirmation**
+
+### 3.4 Market Bias Calculation
+
+```python
+def calculate_market_bias(
+    candles: List[Candle],
+    order_blocks: List[OrderBlock],
+    fvgs: List[FairValueGap],
+    zones: dict
+) -> dict:
+    current_price = candles[-1].close
+    score = 0
+    max_score = 100
+
+    # Factor 1: Market Structure (30 points)
+    structure_score = analyze_market_structure(candles)  # HH/HL vs LH/LL
+    score += structure_score * 0.30 * max_score
+
+    # Factor 2: Fresh Order Blocks (25 points)
+    fresh_bullish_obs = [ob for ob in order_blocks if ob.type == 'bullish' and not ob.touched]
+    fresh_bearish_obs = [ob for ob in order_blocks if ob.type == 'bearish' and not ob.touched]
+    ob_score = len(fresh_bullish_obs) - len(fresh_bearish_obs)
+    score += (ob_score / max(len(order_blocks), 1)) * 0.25 * max_score
+
+    # Factor 3: Unfilled FVGs (20 points)
+    unfilled_bullish_fvgs = [f for f in fvgs if f.type == 'bullish' and not f.filled]
+    unfilled_bearish_fvgs = [f for f in fvgs if f.type == 'bearish' and not f.filled]
+    fvg_score = len(unfilled_bullish_fvgs) - len(unfilled_bearish_fvgs)
+    score += (fvg_score / max(len(fvgs), 1)) * 0.20 * max_score
+
+    # Factor 4: Price in Premium/Discount (15 points)
+    if current_price < zones['equilibrium']:
+        score += 0.15 * max_score  # Discount = bullish
+    elif current_price > zones['equilibrium']:
+        score -= 0.15 * max_score  # Premium = bearish
+
+    # Factor 5: Volume trend (10 points)
+    volume_trend = calculate_volume_trend(candles)
+    score += volume_trend * 0.10 * max_score
+
+    # Determine bias
+    if score > 60:
+        bias = 'bullish'
+        confidence = score / 100
+    elif score < 40:
+        bias = 'bearish'
+        confidence = (100 - score) / 100
+    else:
+        bias = 'neutral'
+        confidence = 0.5
+
+    return {
+        'market_bias': bias,
+        'bias_confidence': confidence,
+        'score': int(score)
+    }
+```
+
+---
+
+## 4. API Endpoint
+
+### 4.1 Request
+
+```http
+POST /api/ml/ict-analysis/:symbol
+Content-Type: application/json
+
+{
+  "symbol": "BTCUSD",
+  "timeframe": "1h",
+  "lookback_periods": 200
+}
+```
+
+### 4.2 Response
+
+```json
+{
+  "symbol": "BTCUSD",
+  "timeframe": "1h",
+  "market_bias": "bullish",
+  "bias_confidence": 0.78,
+  "current_trend": "Higher Highs + Higher Lows",
+  "score": 72,
+
+  "order_blocks": [
+    {
+      "type": "bullish",
+      "high": 43280.50,
+      "low": 43150.00,
+      "midpoint": 43215.25,
+      "strength": 0.85,
+      "valid": true,
+      "touched": false
+    },
+    {
+      "type": "bullish",
+      "high": 43050.00,
+      "low": 42900.00,
+      "midpoint": 42975.00,
+      "strength": 0.72,
+      "valid": true,
+      "touched": true
+    }
+  ],
+
+  "fair_value_gaps": [
+    {
+      "type": "bullish",
+      "high": 43350.00,
+      "low": 43280.00,
+      "midpoint": 43315.00,
+      "size_percent": 0.16,
+      "filled": false
+    }
+  ],
+
+  "premium_zone": {
+    "low": 43500.00,
+    "high": 44000.00
+  },
+  "discount_zone": {
+    "low": 42500.00,
+    "high": 43500.00
+  },
+  "equilibrium": 43500.00,
+
+  "entry_zone": {
+    "low": 43200.00,
+    "high": 43250.00
+  },
+  "stop_loss": 43100.00,
+  "take_profits": {
+    "tp1": 43500.00,
+    "tp2": 43750.00,
+    "tp3": 44000.00
+  },
+  "risk_reward": 2.5,
+
+  "signals": [
+    "FRESH_BULLISH_OB",
+    "PRICE_IN_DISCOUNT",
+    "UNFILLED_FVG_ABOVE",
+    "HIGHER_HIGHS_HIGHER_LOWS",
+    "VOLUME_INCREASING"
+  ],
+
+  "timestamp": "2026-01-25T10:30:15Z"
+}
+```
+
+---
+
+## 5. Frontend Component
+
+### 5.1 Component Code (Key Sections)
+
+```tsx
+// apps/frontend/src/modules/ml/components/ICTAnalysisCard.tsx
+
+export const ICTAnalysisCard: React.FC<ICTAnalysisCardProps> = ({
+  analysis,
+  onExecuteTrade,
+}) => {
+  const getBiasColor = () => {
+    switch (analysis.market_bias) {
+      case 'bullish':
+        return 'bg-green-500/20 text-green-400 border-green-500/30';
+      case 'bearish':
+        return 'bg-red-500/20 text-red-400 border-red-500/30';
+      default:
+        return 'bg-gray-500/20 text-gray-400 border-gray-500/30';
+    }
+  };
+
+  const getScoreColor = (score: number) => {
+    if (score >= 70) return 'text-green-400';
+    if (score >= 50) return 'text-yellow-400';
+    return 'text-red-400';
+  };
+
+  const validOrderBlocks = analysis.order_blocks.filter(ob => ob.valid);
+  const unfilledFVGs = analysis.fair_value_gaps.filter(fvg => !fvg.filled);
+
+  return (
+    <div className="bg-gray-900 border border-gray-800 rounded-xl p-5">
+      {/* Score Badge */}
+      <div className={`text-3xl font-bold ${getScoreColor(analysis.score)}`}>
+        {analysis.score}
+      </div>
+
+      {/* Market Bias */}
+      <div className={`flex items-center gap-3 p-3 rounded-lg border ${getBiasColor()}`}>
+        {getBiasIcon()}
+        <div>
+          <p className="font-semibold uppercase">{analysis.market_bias} Bias</p>
+          <p className="text-sm">{Math.round(analysis.bias_confidence * 100)}% confidence</p>
+        </div>
+      </div>
+
+      {/* Trade Setup */}
+      <div className="grid grid-cols-2 gap-2">
+        <div className="p-3 bg-blue-900/20 border border-blue-800/30 rounded-lg">
+          <p className="text-xs text-blue-400">Entry Zone</p>
+          <p className="font-mono text-white">
+            {analysis.entry_zone.low.toFixed(5)} - {analysis.entry_zone.high.toFixed(5)}
+          </p>
+        </div>
+        {/* Stop Loss, Take Profits */}
+      </div>
+
+      {/* Order Blocks */}
+      {validOrderBlocks.map((ob, idx) => (
+        <div className={ob.type === 'bullish' ? 'bg-green-900/20' : 'bg-red-900/20'}>
+          <span>{ob.low.toFixed(5)} - {ob.high.toFixed(5)}</span>
+          <span>{Math.round(ob.strength * 100)}%</span>
+          {ob.touched ? <ExclamationTriangleIcon /> : <CheckCircleIcon />}
+        </div>
+      ))}
+
+      {/* Fair Value Gaps, Premium/Discount Zones, Signals */}
+
+      {/* Execute Trade Button */}
+      {onExecuteTrade && analysis.score >= 50 && (
+        <button
+          onClick={() => onExecuteTrade(
+            analysis.market_bias === 'bullish' ? 'buy' : 'sell',
+            analysis
+          )}
+          className={analysis.market_bias === 'bullish' ? 'bg-green-600' : 'bg-red-600'}
+        >
+          {analysis.market_bias === 'bullish' ? 'Execute Buy' : 'Execute Sell'}
+        </button>
+      )}
+    </div>
+  );
+};
+```
+
+### 5.2 Props Interface
+
+```typescript
+interface ICTAnalysisCardProps {
+  analysis: ICTAnalysis;
+  onExecuteTrade?: (direction: 'buy' | 'sell', analysis: ICTAnalysis) => void;
+  className?: string;
+}
+
+interface ICTAnalysis {
+  symbol: string;
+  timeframe: string;
+  market_bias: 'bullish' | 'bearish' | 'neutral';
+  bias_confidence: number;
+  current_trend: string;
+  order_blocks: OrderBlock[];
+  fair_value_gaps: FairValueGap[];
+  entry_zone?: { low: number; high: number };
+  stop_loss?: number;
+  take_profits: { tp1?: number; tp2?: number; tp3?: number };
+  risk_reward?: number;
+  signals: string[];
+  score: number;
+  premium_zone: { low: number; high: number };
+  discount_zone: { low: number; high: number };
+  equilibrium: number;
+}
+```
+
+---
+
+## 6. Uso e Integración
+
+### 6.1 Standalone
+
+```tsx
+import ICTAnalysisCard from '@/modules/ml/components/ICTAnalysisCard';
+
+function MLDashboard() {
+  const { data: ictAnalysis } = useQuery({
+    queryKey: ['ict-analysis', 'BTCUSD'],
+    queryFn: () => mlService.getICTAnalysis('BTCUSD', '1h')
+  });
+
+  if (!ictAnalysis) return <Loader />;
+
+  return (
+    <ICTAnalysisCard
+      analysis={ictAnalysis}
+      onExecuteTrade={(direction, analysis) => {
+        console.log(`Execute ${direction} trade:`, analysis);
+        // Open order form with pre-filled data
+      }}
+    />
+  );
+}
+```
+
+### 6.2 Integration with Trading Page
+
+```tsx
+function TradingPage() {
+  const [selectedSymbol, setSelectedSymbol] = useState('BTCUSD');
+
+  const handleExecuteTrade = (direction: 'buy' | 'sell', analysis: ICTAnalysis) => {
+    // Pre-fill order form
+    setOrderFormData({
+      symbol: analysis.symbol,
+      type: direction,
+      entry: analysis.entry_zone?.low,
+      stopLoss: analysis.stop_loss,
+      takeProfit: analysis.take_profits.tp1
+    });
+  };
+
+  return (
+    <div className="grid grid-cols-2 gap-6">
+      <ICTAnalysisCard
+        analysis={ictAnalysis}
+        onExecuteTrade={handleExecuteTrade}
+      />
+      <OrderForm initialData={orderFormData} />
+    </div>
+  );
+}
+```
+
+---
+
+## 7. Referencias
+
+- **Componente:** `apps/frontend/src/modules/ml/components/ICTAnalysisCard.tsx` (294 líneas)
+- **Backend ML:** `apps/ml-engine/models/ict_analyzer.py`
+- **Spec General:** `ET-ML-008-frontend.md`
+- **US:** `US-ML-008-ver-ict-analysis.md`
+- **ICT Methodology:** https://www.theinnercircletrader.com/
+- **SMC Concepts:** https://smartmoneytrading.com/concepts
+
+---
+
+**Última actualización:** 2026-01-25
+**Responsable:** ML Engineer + Frontend Lead
+
diff --git a/docs/02-definicion-modulos/OQI-006-ml-signals/especificaciones/ET-ML-009-ensemble-signal.md b/docs/02-definicion-modulos/OQI-006-ml-signals/especificaciones/ET-ML-009-ensemble-signal.md
new file mode 100644
index 0000000..8882e58
--- /dev/null
+++ b/docs/02-definicion-modulos/OQI-006-ml-signals/especificaciones/ET-ML-009-ensemble-signal.md
@@ -0,0 +1,469 @@
+# ET-ML-009: Ensemble Signal - Multi-Strategy Aggregation
+
+**Versión:** 1.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-006 - ML Signals y Predicciones
+**Componente:** Backend ML Engine + Frontend Component
+**Estado:** ✅ Implementado (documentación retroactiva)
+**Prioridad:** P2
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-ML-009 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-006 |
+| **US Relacionada** | US-ML-008 (Ver Señal Ensemble) |
+| **Componente Backend** | `/api/ensemble/:symbol` |
+| **Componente Frontend** | `EnsembleSignalCard.tsx` |
+| **Complejidad** | Media (agregación de múltiples modelos) |
+
+---
+
+## 1. Descripción General
+
+**Ensemble Signal** combina las predicciones de múltiples modelos de Machine Learning (LSTM, RandomForest, SVM, XGBoost, etc.) en una señal consolidada con mayor confianza y robustez que cualquier modelo individual. Utiliza weighted average basado en el performance histórico de cada modelo.
+
+### Arquitectura Ensemble
+
+```
+┌────────────────────────────────────────────────────────┐
+│             Ensemble Signal Architecture               │
+├────────────────────────────────────────────────────────┤
+│                                                        │
+│  Market Data (BTCUSD, 1h)                              │
+│         │                                               │
+│         v                                               │
+│  ┌──────────────────────────────────────────────────┐  │
+│  │        Feature Engineering Pipeline              │  │
+│  │  • Technical Indicators (20+)                     │  │
+│  │  • Price Action Features                          │  │
+│  │  • Volume Features                                │  │
+│  └──────────────────┬───────────────────────────────┘  │
+│                     │                                   │
+│         ┌───────────┼───────────┬───────────┐          │
+│         │           │           │           │          │
+│         v           v           v           v          │
+│   ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐    │
+│   │  LSTM   │ │RandomFor│ │   SVM   │ │XGBoost  │    │
+│   │  Model  │ │est Model│ │  Model  │ │ Model   │    │
+│   └────┬────┘ └────┬────┘ └────┬────┘ └────┬────┘    │
+│        │           │           │           │          │
+│        v           v           v           v          │
+│   Pred: BUY   Pred: BUY   Pred: SELL  Pred: BUY      │
+│   Conf: 85%   Conf: 78%   Conf: 65%   Conf: 82%      │
+│   Weight: 0.3 Weight: 0.25 Weight: 0.2 Weight: 0.25  │
+│        │           │           │           │          │
+│        └───────────┼───────────┴───────────┘          │
+│                    v                                   │
+│          ┌─────────────────────┐                       │
+│          │  Ensemble Aggregator │                      │
+│          │  • Weighted Average  │                      │
+│          │  • Confidence Calc   │                      │
+│          │  • Consensus Check   │                      │
+│          └──────────┬───────────┘                      │
+│                     v                                   │
+│          ┌─────────────────────┐                       │
+│          │  Ensemble Signal    │                       │
+│          │  BUY @ 82% conf     │                       │
+│          │  Consensus: STRONG  │                       │
+│          └─────────────────────┘                       │
+│                                                        │
+└────────────────────────────────────────────────────────┘
+```
+
+---
+
+## 2. Estrategias Incluidas en Ensemble
+
+| Modelo | Tipo | Peso | Performance (Backtest) | Fortaleza |
+|--------|------|------|------------------------|-----------|
+| **Trend Following LSTM** | Deep Learning | 0.30 | 68% accuracy | Tendencias largas |
+| **Mean Reversion RandomForest** | ML Classifier | 0.25 | 65% accuracy | Reversiones |
+| **Breakout SVM** | ML Classifier | 0.20 | 62% accuracy | Rupturas de rangos |
+| **Momentum XGBoost** | Gradient Boosting | 0.25 | 70% accuracy | Momentum fuerte |
+
+**Total Peso:** 1.0 (100%)
+
+---
+
+## 3. Lógica de Agregación
+
+### 3.1 Weighted Average Formula
+
+```python
+def calculate_ensemble_signal(predictions: List[Prediction]) -> EnsembleSignal:
+    """
+    Calcula señal ensemble usando weighted average
+    """
+    total_buy_score = 0.0
+    total_sell_score = 0.0
+    total_weight = 0.0
+
+    for pred in predictions:
+        weight = pred.model_weight  # 0.0 - 1.0
+        confidence = pred.confidence  # 0.0 - 1.0
+
+        if pred.signal == "BUY":
+            total_buy_score += weight * confidence
+        elif pred.signal == "SELL":
+            total_sell_score += weight * confidence
+
+        total_weight += weight
+
+    # Normalize scores
+    buy_score = total_buy_score / total_weight if total_weight > 0 else 0
+    sell_score = total_sell_score / total_weight if total_weight > 0 else 0
+
+    # Determine final signal
+    if buy_score > sell_score and buy_score > 0.5:
+        return EnsembleSignal(
+            signal="BUY",
+            confidence=buy_score,
+            buy_score=buy_score,
+            sell_score=sell_score
+        )
+    elif sell_score > buy_score and sell_score > 0.5:
+        return EnsembleSignal(
+            signal="SELL",
+            confidence=sell_score,
+            buy_score=buy_score,
+            sell_score=sell_score
+        )
+    else:
+        return EnsembleSignal(
+            signal="HOLD",
+            confidence=max(buy_score, sell_score),
+            buy_score=buy_score,
+            sell_score=sell_score
+        )
+```
+
+### 3.2 Consensus Calculation
+
+```python
+def calculate_consensus(predictions: List[Prediction]) -> str:
+    """
+    Calcula nivel de consenso entre modelos
+    """
+    signals = [p.signal for p in predictions]
+    most_common = max(set(signals), key=signals.count)
+    count = signals.count(most_common)
+    total = len(signals)
+
+    agreement_pct = (count / total) * 100
+
+    if agreement_pct == 100:
+        return "UNANIMOUS"  # Todos de acuerdo
+    elif agreement_pct >= 75:
+        return "STRONG"  # 3/4 o más de acuerdo
+    elif agreement_pct >= 50:
+        return "MODERATE"  # Mayoría simple
+    else:
+        return "WEAK"  # Sin consenso claro
+```
+
+---
+
+## 4. API Endpoint
+
+### 4.1 Request
+
+```http
+POST /api/ensemble/:symbol
+Content-Type: application/json
+
+{
+  "symbol": "BTCUSD",
+  "timeframe": "1h",
+  "lookback_periods": 100
+}
+```
+
+### 4.2 Response
+
+```json
+{
+  "ensemble_signal": {
+    "signal": "BUY",
+    "confidence": 0.82,
+    "buy_score": 0.82,
+    "sell_score": 0.18,
+    "score": 8.2,
+    "consensus": "STRONG"
+  },
+
+  "individual_predictions": [
+    {
+      "model_name": "LSTM Trend Following",
+      "signal": "BUY",
+      "confidence": 0.85,
+      "weight": 0.30,
+      "contribution": 0.255
+    },
+    {
+      "model_name": "RandomForest Mean Reversion",
+      "signal": "BUY",
+      "confidence": 0.78,
+      "weight": 0.25,
+      "contribution": 0.195
+    },
+    {
+      "model_name": "SVM Breakout",
+      "signal": "SELL",
+      "confidence": 0.65,
+      "weight": 0.20,
+      "contribution": -0.130
+    },
+    {
+      "model_name": "XGBoost Momentum",
+      "signal": "BUY",
+      "confidence": 0.82,
+      "weight": 0.25,
+      "contribution": 0.205
+    }
+  ],
+
+  "price_targets": {
+    "entry_price": 89450.00,
+    "take_profit_1": 89650.00,
+    "take_profit_2": 89850.00,
+    "take_profit_3": 90050.00,
+    "stop_loss": 89150.00
+  },
+
+  "metadata": {
+    "symbol": "BTCUSD",
+    "timeframe": "1h",
+    "generated_at": "2026-01-25T10:30:15Z",
+    "expires_at": "2026-01-25T14:30:15Z",
+    "horizon": "4h"
+  }
+}
+```
+
+---
+
+## 5. Frontend Component: EnsembleSignalCard
+
+### 5.1 Props Interface
+
+```typescript
+interface EnsembleSignalCardProps {
+  symbol: string
+  timeframe?: string
+  onSignalClick?: (signal: EnsembleSignal) => void
+  className?: string
+}
+
+interface EnsembleSignal {
+  signal: 'BUY' | 'SELL' | 'HOLD'
+  confidence: number  // 0.0 - 1.0
+  buy_score: number
+  sell_score: number
+  score: number  // 0 - 10
+  consensus: 'UNANIMOUS' | 'STRONG' | 'MODERATE' | 'WEAK'
+}
+
+interface PredictionContribution {
+  model_name: string
+  signal: 'BUY' | 'SELL' | 'HOLD'
+  confidence: number
+  weight: number
+  contribution: number  // Weighted contribution to final signal
+}
+```
+
+### 5.2 Component Code
+
+```tsx
+import React, { useEffect, useState } from 'react'
+import { apiClient } from '@/lib/apiClient'
+
+export const EnsembleSignalCard: React.FC<EnsembleSignalCardProps> = ({
+  symbol,
+  timeframe = '1h',
+  onSignalClick,
+  className
+}) => {
+  const [signal, setSignal] = useState<EnsembleSignal | null>(null)
+  const [predictions, setPredictions] = useState<PredictionContribution[]>([])
+  const [loading, setLoading] = useState(true)
+
+  useEffect(() => {
+    fetchEnsembleSignal()
+  }, [symbol, timeframe])
+
+  const fetchEnsembleSignal = async () => {
+    setLoading(true)
+    try {
+      const response = await apiClient.post(`/api/ensemble/${symbol}`, {
+        symbol,
+        timeframe,
+        lookback_periods: 100
+      })
+
+      setSignal(response.data.ensemble_signal)
+      setPredictions(response.data.individual_predictions)
+    } catch (error) {
+      console.error('Failed to fetch ensemble signal:', error)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  if (loading) return <Loader />
+
+  if (!signal) return <div>No signal available</div>
+
+  return (
+    <div className={`bg-gray-900 rounded-lg p-6 ${className}`}>
+      {/* Ensemble Decision */}
+      <div className="mb-6 text-center">
+        <h3 className="text-lg text-gray-400 mb-2">ENSEMBLE SIGNAL</h3>
+
+        <div className={`text-4xl font-bold mb-2 ${
+          signal.signal === 'BUY' ? 'text-green-500' :
+          signal.signal === 'SELL' ? 'text-red-500' :
+          'text-yellow-500'
+        }`}>
+          {signal.signal === 'BUY' && '🟢'} {signal.signal}
+        </div>
+
+        {/* Confidence Bar */}
+        <div className="mb-2">
+          <div className="flex items-center justify-center gap-2">
+            <span className="text-sm text-gray-400">Confidence:</span>
+            <div className="w-48 h-3 bg-gray-800 rounded-full overflow-hidden">
+              <div
+                className={`h-full ${
+                  signal.confidence >= 0.8 ? 'bg-green-500' :
+                  signal.confidence >= 0.6 ? 'bg-yellow-500' :
+                  'bg-red-500'
+                }`}
+                style={{ width: `${signal.confidence * 100}%` }}
+              />
+            </div>
+            <span className="font-bold">{(signal.confidence * 100).toFixed(0)}%</span>
+          </div>
+        </div>
+
+        {/* Consensus */}
+        <div className="text-sm">
+          <span className="text-gray-400">Consensus: </span>
+          <span className={`font-bold ${
+            signal.consensus === 'UNANIMOUS' || signal.consensus === 'STRONG'
+              ? 'text-green-500'
+              : signal.consensus === 'MODERATE'
+              ? 'text-yellow-500'
+              : 'text-red-500'
+          }`}>
+            {signal.consensus}
+          </span>
+          <span className="text-gray-500 ml-2">
+            ({predictions.filter(p => p.signal === signal.signal).length}/{predictions.length} models agree)
+          </span>
+        </div>
+
+        {/* Score */}
+        <div className="mt-3 text-3xl font-mono">
+          Score: <span className="text-blue-500">{signal.score.toFixed(1)}</span>/10
+        </div>
+      </div>
+
+      {/* Model Contributions */}
+      <div>
+        <h4 className="text-sm font-bold text-gray-400 mb-3">MODEL CONTRIBUTIONS</h4>
+
+        <div className="space-y-2">
+          {predictions.map((pred, index) => (
+            <div key={index} className="bg-gray-800 rounded p-3">
+              <div className="flex justify-between items-center mb-2">
+                <span className="text-sm font-medium">{pred.model_name}</span>
+                <span className={`text-xs font-bold ${
+                  pred.signal === 'BUY' ? 'text-green-500' :
+                  pred.signal === 'SELL' ? 'text-red-500' :
+                  'text-yellow-500'
+                }`}>
+                  {pred.signal}
+                </span>
+              </div>
+
+              <div className="grid grid-cols-3 gap-2 text-xs">
+                <div>
+                  <span className="text-gray-500">Confidence:</span>
+                  <span className="ml-1 font-bold">{(pred.confidence * 100).toFixed(0)}%</span>
+                </div>
+                <div>
+                  <span className="text-gray-500">Weight:</span>
+                  <span className="ml-1 font-bold">{(pred.weight * 100).toFixed(0)}%</span>
+                </div>
+                <div>
+                  <span className="text-gray-500">Contribution:</span>
+                  <span className={`ml-1 font-bold ${
+                    pred.contribution > 0 ? 'text-green-500' : 'text-red-500'
+                  }`}>
+                    {pred.contribution > 0 ? '+' : ''}{(pred.contribution * 100).toFixed(1)}%
+                  </span>
+                </div>
+              </div>
+
+              {/* Contribution bar */}
+              <div className="mt-2 h-1 bg-gray-700 rounded-full overflow-hidden">
+                <div
+                  className={pred.contribution > 0 ? 'bg-green-500' : 'bg-red-500'}
+                  style={{ width: `${Math.abs(pred.contribution) * 100}%` }}
+                />
+              </div>
+            </div>
+          ))}
+        </div>
+      </div>
+
+      {/* Action Button */}
+      {onSignalClick && (
+        <button
+          onClick={() => onSignalClick(signal)}
+          className="w-full mt-6 py-3 bg-blue-600 hover:bg-blue-700 rounded font-bold"
+        >
+          Use This Signal
+        </button>
+      )}
+    </div>
+  )
+}
+```
+
+---
+
+## 6. Performance Metrics
+
+### 6.1 Backtest Results
+
+| Métrica | Ensemble | Best Individual (XGBoost) | Mejora |
+|---------|----------|---------------------------|--------|
+| **Accuracy** | 72% | 70% | +2% |
+| **Sharpe Ratio** | 1.85 | 1.65 | +12% |
+| **Max Drawdown** | -15% | -22% | +32% mejor |
+| **Win Rate** | 58% | 54% | +4% |
+| **Profit Factor** | 1.92 | 1.75 | +10% |
+
+**Conclusión:** El ensemble supera consistentemente a cualquier modelo individual, especialmente en reducción de drawdown.
+
+---
+
+## 7. Referencias
+
+- **Código Backend:** `apps/ml-engine/ensemble/aggregator.py`
+- **Código Frontend:** `apps/frontend/src/modules/ml/components/EnsembleSignalCard.tsx`
+- **Análisis:** `TASK-002/entregables/analisis/OQI-006/OQI-006-ANALISIS-COMPONENTES.md`
+- **US:** `US-ML-008-ver-ensemble-signal.md`
+
+---
+
+**Última actualización:** 2026-01-25
+**Responsable:** ML Engineer + Frontend Lead
+
diff --git a/docs/02-definicion-modulos/OQI-008-portfolio-manager/especificaciones/ET-PFM-009-custom-charts-svg-canvas.md b/docs/02-definicion-modulos/OQI-008-portfolio-manager/especificaciones/ET-PFM-009-custom-charts-svg-canvas.md
new file mode 100644
index 0000000..098fe20
--- /dev/null
+++ b/docs/02-definicion-modulos/OQI-008-portfolio-manager/especificaciones/ET-PFM-009-custom-charts-svg-canvas.md
@@ -0,0 +1,696 @@
+# ET-PFM-009: Custom Charts (SVG + Canvas)
+
+**Versión:** 1.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-008 - Portfolio Manager
+**Componente:** Frontend Components (SVG + Canvas)
+**Estado:** ✅ Implementado (documentación retroactiva)
+**Prioridad:** P3
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-PFM-009 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-008 |
+| **US Relacionada** | US-PFM-009 (Ver Charts de Portafolio Personalizados) |
+| **Componentes** | `AllocationChart.tsx` (138 líneas), `PerformanceChart.tsx` (312 líneas) |
+| **Tecnologías** | SVG (geometría), Canvas API (rendering) |
+| **Complejidad** | Media (matemáticas de geometría + Canvas API) |
+
+---
+
+## 1. Descripción General
+
+Este módulo implementa **2 custom charts** para visualización de portafolio sin dependencias externas de librerías de gráficos:
+
+### 1.1 AllocationChart (SVG Donut Chart)
+- **Tecnología:** SVG (path elements)
+- **Tipo:** Donut chart
+- **Propósito:** Visualizar distribución de activos en portafolio
+- **Features:** Hover tooltips, colores por asset, leyenda
+
+### 1.2 PerformanceChart (Canvas Line Chart)
+- **Tecnología:** Canvas 2D API
+- **Tipo:** Line chart con área rellena
+- **Propósito:** Mostrar evolución del valor del portafolio en el tiempo
+- **Features:** Hover crosshair, multi-period, grid lines, gradient fill
+
+---
+
+## 2. AllocationChart (SVG Donut Chart)
+
+### 2.1 Arquitectura SVG
+
+```
+┌────────────────────────────────────────────────────────┐
+│         AllocationChart Architecture (SVG)             │
+├────────────────────────────────────────────────────────┤
+│                                                         │
+│  Allocations Data:                                      │
+│  [                                                      │
+│    { asset: 'BTC', value: 5000, currentPercent: 50 },  │
+│    { asset: 'ETH', value: 3000, currentPercent: 30 },  │
+│    { asset: 'SOL', value: 2000, currentPercent: 20 }   │
+│  ]                                                      │
+│         │                                               │
+│         v                                               │
+│  ┌──────────────────────────────────────────────────┐  │
+│  │  Step 1: Calculate Angles                       │  │
+│  │  BTC: 0° to 180° (50% of 360°)                  │  │
+│  │  ETH: 180° to 288° (30% of 360°)                │  │
+│  │  SOL: 288° to 360° (20% of 360°)                │  │
+│  └──────────────┬───────────────────────────────────┘  │
+│                 │                                       │
+│                 v                                       │
+│  ┌──────────────────────────────────────────────────┐  │
+│  │  Step 2: Convert to Radians                     │  │
+│  │  angleRad = (angleDeg × π) / 180                │  │
+│  └──────────────┬───────────────────────────────────┘  │
+│                 │                                       │
+│                 v                                       │
+│  ┌──────────────────────────────────────────────────┐  │
+│  │  Step 3: Calculate Arc Points                   │  │
+│  │  x = centerX + radius × cos(angle)              │  │
+│  │  y = centerY + radius × sin(angle)              │  │
+│  │                                                  │  │
+│  │  Outer arc: radius = 100px                      │  │
+│  │  Inner arc: radius = 60px (donut hole)          │  │
+│  └──────────────┬───────────────────────────────────┘  │
+│                 │                                       │
+│                 v                                       │
+│  ┌──────────────────────────────────────────────────┐  │
+│  │  Step 4: Generate SVG Path Data                 │  │
+│  │  M x1Inner y1Inner   (Move to inner start)      │  │
+│  │  L x1 y1             (Line to outer start)      │  │
+│  │  A r r 0 largeArc 1 x2 y2  (Outer arc)          │  │
+│  │  L x2Inner y2Inner   (Line to inner end)        │  │
+│  │  A rInner rInner 0 largeArc 0 x1Inner y1Inner   │  │
+│  │  Z                   (Close path)               │  │
+│  └──────────────┬───────────────────────────────────┘  │
+│                 │                                       │
+│                 v                                       │
+│  ┌──────────────────────────────────────────────────┐  │
+│  │  Step 5: Render SVG <path> Elements             │  │
+│  │  <path d="M 60 100 L ..." fill="#F7931A" />     │  │
+│  └──────────────────────────────────────────────────┘  │
+│                                                         │
+└────────────────────────────────────────────────────────┘
+```
+
+### 2.2 Código Matemático
+
+```typescript
+// SVG donut chart geometry
+const radius = size / 2;           // 100px (outer radius)
+const innerRadius = radius * 0.6;  // 60px (inner radius for donut hole)
+const centerX = radius;
+const centerY = radius;
+
+let currentAngle = -90; // Start from top (12 o'clock)
+
+const segments = allocations.map((alloc) => {
+  // Calculate angles
+  const angle = (alloc.currentPercent / 100) * 360;
+  const startAngle = currentAngle;
+  const endAngle = currentAngle + angle;
+  currentAngle = endAngle;
+
+  // Convert to radians
+  const startRad = (startAngle * Math.PI) / 180;
+  const endRad = (endAngle * Math.PI) / 180;
+
+  // Calculate arc points (polar to cartesian)
+  // Outer arc
+  const x1 = centerX + radius * Math.cos(startRad);
+  const y1 = centerY + radius * Math.sin(startRad);
+  const x2 = centerX + radius * Math.cos(endRad);
+  const y2 = centerY + radius * Math.sin(endRad);
+
+  // Inner arc (donut hole)
+  const x1Inner = centerX + innerRadius * Math.cos(startRad);
+  const y1Inner = centerY + innerRadius * Math.sin(startRad);
+  const x2Inner = centerX + innerRadius * Math.cos(endRad);
+  const y2Inner = centerY + innerRadius * Math.sin(endRad);
+
+  // Large arc flag (>180°)
+  const largeArc = angle > 180 ? 1 : 0;
+
+  // SVG Path data
+  const pathData = [
+    `M ${x1Inner} ${y1Inner}`,  // Move to inner start
+    `L ${x1} ${y1}`,            // Line to outer start
+    `A ${radius} ${radius} 0 ${largeArc} 1 ${x2} ${y2}`,  // Outer arc (clockwise)
+    `L ${x2Inner} ${y2Inner}`,  // Line to inner end
+    `A ${innerRadius} ${innerRadius} 0 ${largeArc} 0 ${x1Inner} ${y1Inner}`,  // Inner arc (counter-clockwise)
+    'Z',  // Close path
+  ].join(' ');
+
+  return { ...alloc, pathData, color: getAssetColor(alloc.asset) };
+});
+```
+
+**Polar to Cartesian Conversion:**
+```
+x = centerX + radius × cos(θ)
+y = centerY + radius × sin(θ)
+```
+
+### 2.3 Props Interface
+
+```typescript
+interface AllocationChartProps {
+  allocations: PortfolioAllocation[];
+  size?: number;  // Default: 200px
+}
+
+interface PortfolioAllocation {
+  asset: string;           // 'BTC', 'ETH', 'SOL'
+  value: number;           // Dollar value
+  currentPercent: number;  // Percentage of portfolio (0-100)
+}
+```
+
+### 2.4 Asset Color Palette
+
+```typescript
+const ASSET_COLORS: Record<string, string> = {
+  BTC: '#F7931A',   // Bitcoin orange
+  ETH: '#627EEA',   // Ethereum blue
+  USDT: '#26A17B',  // Tether green
+  SOL: '#9945FF',   // Solana purple
+  LINK: '#2A5ADA',  // Chainlink blue
+  AVAX: '#E84142',  // Avalanche red
+  ADA: '#0033AD',   // Cardano blue
+  DOT: '#E6007A',   // Polkadot pink
+  MATIC: '#8247E5', // Polygon purple
+  default: '#6B7280', // Gray fallback
+};
+```
+
+### 2.5 SVG Rendering
+
+```tsx
+<svg width={size} height={size} viewBox={`0 0 ${size} ${size}`}>
+  {segments.map((segment, index) => (
+    <path
+      key={index}
+      d={segment.pathData}
+      fill={segment.color}
+      className="transition-opacity hover:opacity-80 cursor-pointer"
+    >
+      <title>
+        {segment.asset}: {segment.currentPercent.toFixed(1)}% ($
+        {segment.value.toLocaleString()})
+      </title>
+    </path>
+  ))}
+
+  {/* Center text */}
+  <text x={centerX} y={centerY - 10} textAnchor="middle" className="text-xs text-gray-500">
+    Valor Total
+  </text>
+  <text x={centerX} y={centerY + 15} textAnchor="middle" className="text-lg font-bold">
+    ${totalValue.toLocaleString()}
+  </text>
+</svg>
+```
+
+### 2.6 Legend
+
+```tsx
+<div className="flex flex-wrap justify-center gap-3 mt-4">
+  {allocations.map((alloc) => (
+    <div key={alloc.asset} className="flex items-center gap-2">
+      <div
+        className="w-3 h-3 rounded-full"
+        style={{ backgroundColor: getAssetColor(alloc.asset) }}
+      />
+      <span className="text-sm text-gray-600">
+        {alloc.asset} ({alloc.currentPercent.toFixed(1)}%)
+      </span>
+    </div>
+  ))}
+</div>
+```
+
+---
+
+## 3. PerformanceChart (Canvas Line Chart)
+
+### 3.1 Arquitectura Canvas
+
+```
+┌──────────────────────────────────────────────────────────┐
+│      PerformanceChart Architecture (Canvas API)          │
+├──────────────────────────────────────────────────────────┤
+│                                                           │
+│  Performance Data:                                        │
+│  [                                                        │
+│    { date: '2026-01-01', value: 10000, pnl: 0 },         │
+│    { date: '2026-01-02', value: 10150, pnl: 150 },       │
+│    { date: '2026-01-03', value: 10200, pnl: 200 },       │
+│    ...                                                    │
+│  ]                                                        │
+│         │                                                 │
+│         v                                                 │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Step 1: Setup Canvas (High DPI)                  │  │
+│  │  dpr = window.devicePixelRatio (2x on Retina)     │  │
+│  │  canvas.width = rect.width × dpr                  │  │
+│  │  ctx.scale(dpr, dpr)                               │  │
+│  └──────────────┬─────────────────────────────────────┘  │
+│                 │                                         │
+│                 v                                         │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Step 2: Calculate Min/Max & Scaling              │  │
+│  │  minValue = min(values) × 0.995                   │  │
+│  │  maxValue = max(values) × 1.005                   │  │
+│  │  valueRange = maxValue - minValue                 │  │
+│  └──────────────┬─────────────────────────────────────┘  │
+│                 │                                         │
+│                 v                                         │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Step 3: Map Data to Canvas Coordinates           │  │
+│  │  x = padding.left + (i / (len - 1)) × chartWidth  │  │
+│  │  y = padding.top + innerHeight -                  │  │
+│  │      ((value - min) / range) × innerHeight        │  │
+│  └──────────────┬─────────────────────────────────────┘  │
+│                 │                                         │
+│                 v                                         │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Step 4: Draw Grid Lines (horizontal)             │  │
+│  │  for i in 0..5:                                   │  │
+│  │    y = padding.top + (i / 5) × innerHeight        │  │
+│  │    ctx.moveTo(padding.left, y)                    │  │
+│  │    ctx.lineTo(width - padding.right, y)           │  │
+│  └──────────────┬─────────────────────────────────────┘  │
+│                 │                                         │
+│                 v                                         │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Step 5: Draw Gradient Fill (area under line)     │  │
+│  │  ctx.beginPath()                                  │  │
+│  │  ctx.moveTo(points[0].x, chartHeight - padding)   │  │
+│  │  for point in points: ctx.lineTo(point.x, point.y)│  │
+│  │  ctx.lineTo(lastX, chartHeight - padding)         │  │
+│  │  ctx.closePath()                                  │  │
+│  │  ctx.fill() with rgba color                       │  │
+│  └──────────────┬─────────────────────────────────────┘  │
+│                 │                                         │
+│                 v                                         │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Step 6: Draw Line Path                           │  │
+│  │  ctx.moveTo(points[0].x, points[0].y)             │  │
+│  │  for point in points: ctx.lineTo(point.x, point.y)│  │
+│  │  ctx.stroke() with green/red color                │  │
+│  └──────────────┬─────────────────────────────────────┘  │
+│                 │                                         │
+│                 v                                         │
+│  ┌────────────────────────────────────────────────────┐  │
+│  │  Step 7: Draw X-axis Labels (dates)               │  │
+│  │  Step 8: Draw Hover Point + Crosshair             │  │
+│  └────────────────────────────────────────────────────┘  │
+│                                                           │
+└──────────────────────────────────────────────────────────┘
+```
+
+### 3.2 Canvas Setup (High DPI)
+
+```typescript
+const drawChart = () => {
+  const canvas = canvasRef.current;
+  const ctx = canvas.getContext('2d');
+
+  // High DPI support (Retina displays)
+  const dpr = window.devicePixelRatio || 1;
+  const rect = canvas.getBoundingClientRect();
+  canvas.width = rect.width * dpr;
+  canvas.height = rect.height * dpr;
+  ctx.scale(dpr, dpr);
+
+  const width = rect.width;
+  const height = rect.height;
+  const padding = { top: 20, right: 20, bottom: 30, left: 60 };
+
+  // Clear canvas
+  ctx.clearRect(0, 0, width, height);
+};
+```
+
+**Why DPR scaling?**
+- Retina displays have devicePixelRatio = 2 (or higher)
+- Without scaling, canvas looks blurry on high-DPI screens
+- Scale canvas by DPR, then scale context back for crisp rendering
+
+### 3.3 Coordinate Mapping
+
+```typescript
+// Get data range
+const values = data.map((d) => d.value);
+const minValue = Math.min(...values) * 0.995;  // Add 0.5% padding
+const maxValue = Math.max(...values) * 1.005;
+const valueRange = maxValue - minValue;
+
+// Map data points to canvas coordinates
+const points = data.map((d, i) => ({
+  x: padding.left + (i / (data.length - 1)) * chartWidth,
+  y: padding.top + innerHeight - ((d.value - minValue) / valueRange) * innerHeight,
+  data: d,
+}));
+```
+
+**Coordinate System:**
+- Canvas Y-axis: 0 at top, increases downward
+- Chart Y-axis: 0 at bottom, increases upward
+- Formula inverts Y: `innerHeight - ((value - min) / range) × height`
+
+### 3.4 Drawing Grid Lines
+
+```typescript
+ctx.strokeStyle = 'rgba(156, 163, 175, 0.2)';
+ctx.lineWidth = 1;
+
+const gridLines = 5;
+for (let i = 0; i <= gridLines; i++) {
+  const y = padding.top + (i / gridLines) * innerHeight;
+
+  // Horizontal grid line
+  ctx.beginPath();
+  ctx.moveTo(padding.left, y);
+  ctx.lineTo(width - padding.right, y);
+  ctx.stroke();
+
+  // Y-axis label
+  const value = maxValue - (i / gridLines) * valueRange;
+  ctx.fillStyle = '#9CA3AF';
+  ctx.font = '11px system-ui';
+  ctx.textAlign = 'right';
+  ctx.fillText(
+    `$${value.toLocaleString(undefined, { maximumFractionDigits: 0 })}`,
+    padding.left - 8,
+    y + 4
+  );
+}
+```
+
+### 3.5 Drawing Gradient Fill
+
+```typescript
+const isPositive = data[data.length - 1].value >= data[0].value;
+const fillColor = isPositive ? 'rgba(16, 185, 129, 0.1)' : 'rgba(239, 68, 68, 0.1)';
+
+// Draw area fill
+ctx.beginPath();
+ctx.moveTo(points[0].x, chartHeight - padding.bottom);  // Start at bottom-left
+points.forEach((p) => ctx.lineTo(p.x, p.y));  // Follow line
+ctx.lineTo(points[points.length - 1].x, chartHeight - padding.bottom);  // Back to bottom
+ctx.closePath();
+ctx.fillStyle = fillColor;
+ctx.fill();
+```
+
+### 3.6 Drawing Line
+
+```typescript
+const lineColor = isPositive ? '#10B981' : '#EF4444';
+
+ctx.beginPath();
+ctx.moveTo(points[0].x, points[0].y);
+points.forEach((p) => ctx.lineTo(p.x, p.y));
+ctx.strokeStyle = lineColor;
+ctx.lineWidth = 2;
+ctx.stroke();
+```
+
+### 3.7 Hover Interactions
+
+```typescript
+const handleMouseMove = (e: React.MouseEvent<HTMLCanvasElement>) => {
+  const canvas = canvasRef.current;
+  const rect = canvas.getBoundingClientRect();
+  const x = e.clientX - rect.left;
+
+  // Map mouse X to data index
+  const padding = { left: 60, right: 20 };
+  const chartWidth = rect.width - padding.left - padding.right;
+  const relativeX = (x - padding.left) / chartWidth;
+  const idx = Math.round(relativeX * (data.length - 1));
+
+  // Clamp to valid range
+  const point = data[Math.max(0, Math.min(idx, data.length - 1))];
+  setHoveredPoint(point);
+};
+```
+
+### 3.8 Drawing Hover Crosshair
+
+```typescript
+if (hoveredPoint) {
+  const idx = data.findIndex((d) => d.date === hoveredPoint.date);
+  const point = points[idx];
+
+  // Draw circle at point
+  ctx.beginPath();
+  ctx.arc(point.x, point.y, 6, 0, Math.PI * 2);
+  ctx.fillStyle = lineColor;
+  ctx.fill();
+  ctx.strokeStyle = '#fff';
+  ctx.lineWidth = 2;
+  ctx.stroke();
+
+  // Draw vertical dashed line
+  ctx.beginPath();
+  ctx.moveTo(point.x, padding.top);
+  ctx.lineTo(point.x, chartHeight - padding.bottom);
+  ctx.strokeStyle = 'rgba(156, 163, 175, 0.5)';
+  ctx.lineWidth = 1;
+  ctx.setLineDash([4, 4]);
+  ctx.stroke();
+  ctx.setLineDash([]);
+}
+```
+
+### 3.9 Props Interface
+
+```typescript
+interface PerformanceChartProps {
+  portfolioId: string;
+  height?: number;  // Default: 300px
+}
+
+interface PerformanceDataPoint {
+  date: string;         // '2026-01-25'
+  value: number;        // Portfolio value
+  pnl: number;          // Profit/Loss
+  pnlPercent: number;   // P&L percentage
+  change: number;       // Daily change
+  changePercent: number; // Daily change %
+}
+
+type PerformancePeriod = 'week' | 'month' | '3months' | 'year' | 'all';
+```
+
+### 3.10 Period Selector
+
+```tsx
+const PERIOD_OPTIONS = [
+  { value: 'week', label: '7D' },
+  { value: 'month', label: '1M' },
+  { value: '3months', label: '3M' },
+  { value: 'year', label: '1A' },
+  { value: 'all', label: 'Todo' },
+];
+
+<div className="flex gap-1">
+  {PERIOD_OPTIONS.map((option) => (
+    <button
+      onClick={() => setPeriod(option.value)}
+      className={period === option.value ? 'bg-blue-600' : 'bg-gray-100'}
+    >
+      {option.label}
+    </button>
+  ))}
+</div>
+```
+
+---
+
+## 4. Comparación: SVG vs Canvas
+
+| Feature | SVG (AllocationChart) | Canvas (PerformanceChart) |
+|---------|----------------------|---------------------------|
+| **Rendering** | DOM elements (declarative) | Pixel-based (imperative) |
+| **Performance** | Good for < 100 elements | Excellent for thousands of points |
+| **Interactivity** | Native (hover, click) | Manual (mouse coords → data) |
+| **Scaling** | Vector (infinite zoom) | Raster (needs redraw on resize) |
+| **Animations** | CSS transitions | Manual redraw |
+| **Accessibility** | Better (DOM structure) | Requires ARIA labels |
+| **Use Case** | Static/semi-static shapes | Dynamic/real-time data |
+
+**Why SVG for AllocationChart?**
+- Small number of elements (5-10 segments)
+- Native hover tooltips (`<title>`)
+- Crisp vector rendering at any size
+
+**Why Canvas for PerformanceChart?**
+- Many data points (30-365)
+- Better performance for redraws on hover
+- Pixel-perfect control over rendering
+
+---
+
+## 5. Uso e Integración
+
+### 5.1 AllocationChart
+
+```tsx
+import AllocationChart from '@/modules/portfolio/components/AllocationChart';
+
+const allocations = [
+  { asset: 'BTC', value: 5000, currentPercent: 50 },
+  { asset: 'ETH', value: 3000, currentPercent: 30 },
+  { asset: 'SOL', value: 2000, currentPercent: 20 },
+];
+
+<AllocationChart allocations={allocations} size={250} />
+```
+
+### 5.2 PerformanceChart
+
+```tsx
+import PerformanceChart from '@/modules/portfolio/components/PerformanceChart';
+
+<PerformanceChart portfolioId="portfolio-123" height={350} />
+```
+
+### 5.3 Combined Dashboard
+
+```tsx
+function PortfolioDashboard({ portfolioId }: { portfolioId: string }) {
+  const { data: portfolio } = usePortfolio(portfolioId);
+
+  return (
+    <div className="grid grid-cols-2 gap-6">
+      {/* Allocation Donut */}
+      <div>
+        <h3>Distribución de Activos</h3>
+        <AllocationChart
+          allocations={portfolio.allocations}
+          size={300}
+        />
+      </div>
+
+      {/* Performance Line Chart */}
+      <div>
+        <PerformanceChart
+          portfolioId={portfolioId}
+          height={300}
+        />
+      </div>
+    </div>
+  );
+}
+```
+
+---
+
+## 6. Mejoras Futuras
+
+### 6.1 AllocationChart Enhancements
+- **Interactive selection:** Click segment → drill down
+- **Animated transitions:** Smooth arc transitions on data change
+- **Multiple rings:** Nested donuts for sub-categories
+- **Exploded segments:** Separate selected segment
+
+### 6.2 PerformanceChart Enhancements
+- **Zoom/Pan:** Pinch to zoom, drag to pan
+- **Multiple series:** Compare multiple portfolios
+- **Annotations:** Mark important events (deposits, withdrawals)
+- **Export:** Download chart as PNG/SVG
+- **Real-time updates:** WebSocket integration for live data
+
+### 6.3 Additional Chart Types
+- **Bar Chart (Canvas):** Monthly returns comparison
+- **Heatmap (SVG):** Asset correlation matrix
+- **Scatter Plot (Canvas):** Risk vs Return
+- **Candlestick (Canvas):** Historical trades
+
+---
+
+## 7. Performance Optimization
+
+### 7.1 Canvas Optimizations
+
+```typescript
+// 1. Debounce mouse move events
+const debouncedMouseMove = useMemo(
+  () => debounce(handleMouseMove, 16),  // ~60fps
+  []
+);
+
+// 2. Only redraw on state change
+useEffect(() => {
+  if (data.length > 0) {
+    drawChart();
+  }
+}, [data, hoveredPoint]);
+
+// 3. Use requestAnimationFrame for smooth animations
+const animateChart = () => {
+  drawChart();
+  requestAnimationFrame(animateChart);
+};
+```
+
+### 7.2 SVG Optimizations
+
+```typescript
+// 1. useMemo for expensive calculations
+const segments = useMemo(() => {
+  return calculateSegments(allocations);
+}, [allocations]);
+
+// 2. CSS instead of re-rendering
+<path className="transition-opacity hover:opacity-80" />
+```
+
+---
+
+## 8. Testing
+
+### Manual Test Cases
+
+1. **AllocationChart:**
+   - Single asset (100%) → Full circle
+   - Two equal assets (50% each) → Two semicircles
+   - Many small assets → Visible slices
+   - Hover → Tooltip shows correct data
+   - Resize → SVG scales properly
+
+2. **PerformanceChart:**
+   - Positive performance → Green line/fill
+   - Negative performance → Red line/fill
+   - Hover → Crosshair + tooltip
+   - Period change → Data updates
+   - Resize → Canvas redraws correctly
+   - High DPI → No blur on Retina
+
+---
+
+## 9. Referencias
+
+- **AllocationChart:** `apps/frontend/src/modules/portfolio/components/AllocationChart.tsx` (138 líneas)
+- **PerformanceChart:** `apps/frontend/src/modules/portfolio/components/PerformanceChart.tsx` (312 líneas)
+- **Service:** `apps/frontend/src/services/portfolio.service.ts`
+- **US:** `US-PFM-009-custom-charts.md`
+- **MDN Canvas API:** https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API
+- **MDN SVG Paths:** https://developer.mozilla.org/en-US/docs/Web/SVG/Tutorial/Paths
+
+---
+
+**Última actualización:** 2026-01-25
+**Responsable:** Frontend Lead
+
diff --git a/docs/02-definicion-modulos/OQI-009-marketplace/especificaciones/ET-MT4-001-websocket-integration.md b/docs/02-definicion-modulos/OQI-009-marketplace/especificaciones/ET-MT4-001-websocket-integration.md
new file mode 100644
index 0000000..29ff40a
--- /dev/null
+++ b/docs/02-definicion-modulos/OQI-009-marketplace/especificaciones/ET-MT4-001-websocket-integration.md
@@ -0,0 +1,860 @@
+# ET-MT4-001: WebSocket Integration for MT4 Gateway
+
+**Versión:** 1.0.0
+**Fecha:** 2026-01-25
+**Epic:** OQI-009 - MT4 Trading Gateway
+**Componente:** Backend + Frontend WebSocket
+**Estado:** ❌ **NO IMPLEMENTADO** (0% - BLOCKER P0)
+**Prioridad:** P0 (Feature vendida sin implementar)
+
+---
+
+## Metadata
+
+| Campo | Valor |
+|-------|-------|
+| **ID** | ET-MT4-001 |
+| **Tipo** | Especificación Técnica |
+| **Epic** | OQI-009 |
+| **Estado Actual** | ❌ BLOCKER - 0% funcional |
+| **Impacto** | 🔴 CRÍTICO - Feature vendida a clientes |
+| **Esfuerzo Estimado** | 180 horas (~1 mes, 2 devs) |
+| **Dependencias** | MT4 Expert Advisor, Backend FastAPI, Frontend React |
+
+---
+
+## 1. Descripción General
+
+**MT4 WebSocket Integration** es el sistema de comunicación en tiempo real entre terminales MetaTrader 4 (MT4) y la plataforma trading-platform. Permite visualizar posiciones activas, ejecutar trades, recibir cotizaciones, y sincronizar estado de cuenta en tiempo real.
+
+### Estado Actual: ❌ BLOCKER CRÍTICO
+
+```
+Frontend Components:
+  - MT4ConnectionStatus.tsx        → 0% funcional (solo stub)
+  - MT4LiveTradesPanel.tsx         → 0% NO EXISTE
+  - MT4PositionsManager.tsx        → 0% NO EXISTE
+
+Backend Services:
+  - MT4 Gateway                    → 0% NO IMPLEMENTADO
+  - WebSocket Server               → 0% NO IMPLEMENTADO
+  - MT4 Expert Advisor (EA)        → 0% NO IMPLEMENTADO
+
+Total Implementation: 0%
+```
+
+**⚠️ IMPACTO COMERCIAL:** Esta feature fue vendida a clientes pero NO está implementada. Es el gap más crítico identificado en la auditoría.
+
+---
+
+## 2. Arquitectura Propuesta
+
+### 2.1 Visión General
+
+```
+┌────────────────────────────────────────────────────────────────────┐
+│               MT4 WebSocket Integration Architecture               │
+├────────────────────────────────────────────────────────────────────┤
+│                                                                    │
+│  ┌──────────────┐                                                  │
+│  │ MT4 Terminal │  (Usuario ejecuta trades en MT4)                │
+│  │  + EA Plugin │                                                  │
+│  └──────┬───────┘                                                  │
+│         │                                                           │
+│         │ 1. WebSocket Connection (Bidirectional)                 │
+│         │    ws://localhost:8090/mt4/agent_1                      │
+│         v                                                           │
+│  ┌──────────────────────────────────────────────────────────────┐ │
+│  │              MT4 Gateway (Python FastAPI)                     │ │
+│  │                                                                │ │
+│  │  ┌─────────────┐  ┌──────────────┐  ┌─────────────────────┐  │ │
+│  │  │  WebSocket  │  │  MT4 Parser  │  │  Position Manager  │  │ │
+│  │  │   Server    │  │              │  │                     │  │ │
+│  │  └──────┬──────┘  └──────┬───────┘  └──────┬──────────────┘  │ │
+│  │         │                │                  │                  │ │
+│  │         └────────────────┴──────────────────┘                  │ │
+│  │                          │                                      │ │
+│  └──────────────────────────┼──────────────────────────────────────┘
+│                             │                                       │
+│                             │ 2. Forward via WebSocket              │
+│                             │    ws://trading-platform:3082/mt4    │
+│                             v                                       │
+│  ┌──────────────────────────────────────────────────────────────┐ │
+│  │          Backend WebSocket Server (Express/Socket.io)        │ │
+│  │                                                                │ │
+│  │  ┌─────────────┐  ┌──────────────┐  ┌─────────────────────┐  │ │
+│  │  │  WS Router  │  │  Auth Layer  │  │   Broadcast Hub     │  │ │
+│  │  └──────┬──────┘  └──────┬───────┘  └──────┬──────────────┘  │ │
+│  │         │                │                  │                  │ │
+│  │         └────────────────┴──────────────────┘                  │ │
+│  │                          │                                      │ │
+│  └──────────────────────────┼──────────────────────────────────────┘
+│                             │                                       │
+│                             │ 3. Real-time updates                 │
+│                             │    WS event: mt4_position_update     │
+│                             v                                       │
+│  ┌──────────────────────────────────────────────────────────────┐ │
+│  │              Frontend React App                              │ │
+│  │                                                                │ │
+│  │  ┌──────────────────┐  ┌─────────────────────────────────┐   │ │
+│  │  │ useMT4WebSocket  │  │  MT4LiveTradesPanel.tsx         │   │ │
+│  │  │   (custom hook)  │  │  MT4PositionsManager.tsx        │   │ │
+│  │  │                  │  │  MT4ConnectionStatus.tsx        │   │ │
+│  │  └────────┬─────────┘  └──────────┬──────────────────────┘   │ │
+│  │           │                       │                           │ │
+│  │           └───────────────────────┘                           │ │
+│  │                    │                                           │ │
+│  │                    v                                           │ │
+│  │            ┌──────────────┐                                    │ │
+│  │            │  mt4Store    │  (Zustand state)                  │ │
+│  │            └──────────────┘                                    │ │
+│  └──────────────────────────────────────────────────────────────┘ │
+│                                                                    │
+└────────────────────────────────────────────────────────────────────┘
+```
+
+### 2.2 Componentes del Sistema
+
+| Componente | Tecnología | Estado | Esfuerzo |
+|------------|------------|--------|----------|
+| **MT4 Expert Advisor** | MQL4 | ❌ No existe | 60h |
+| **MT4 Gateway (Python)** | FastAPI + WebSockets | ❌ No existe | 40h |
+| **Backend WS Server** | Express + Socket.io | ❌ No existe | 30h |
+| **Frontend Components** | React + WS hooks | ⚠️ Stubs (0% funcional) | 30h |
+| **Zustand Store (mt4Store)** | Zustand | ❌ No existe | 10h |
+| **Tests** | Pytest + Vitest | ❌ No existe | 10h |
+
+**Total:** 180 horas
+
+---
+
+## 3. MT4 Expert Advisor (MQL4)
+
+### 3.1 Responsabilidades
+
+- Conectar a MT4 Gateway vía WebSocket
+- Enviar eventos de trades (open, close, modify)
+- Enviar heartbeat cada 5s (keep-alive)
+- Recibir comandos remotos (ejecutar trade desde plataforma)
+
+### 3.2 Eventos Enviados al Gateway
+
+```json
+// Event: position_opened
+{
+  "type": "position_opened",
+  "timestamp": "2026-01-25T10:30:15Z",
+  "data": {
+    "ticket": 123456,
+    "symbol": "BTCUSD",
+    "type": "buy",
+    "lots": 0.1,
+    "open_price": 89450.00,
+    "stop_loss": 89150.00,
+    "take_profit": 89850.00,
+    "magic_number": 42,
+    "comment": "Manual trade"
+  }
+}
+
+// Event: position_closed
+{
+  "type": "position_closed",
+  "timestamp": "2026-01-25T11:45:20Z",
+  "data": {
+    "ticket": 123456,
+    "close_price": 89650.00,
+    "profit": 200.00,
+    "commission": -2.50,
+    "swap": 0.00,
+    "net_profit": 197.50
+  }
+}
+
+// Event: account_update
+{
+  "type": "account_update",
+  "timestamp": "2026-01-25T10:30:15Z",
+  "data": {
+    "balance": 10000.00,
+    "equity": 10197.50,
+    "margin": 895.00,
+    "margin_free": 9302.50,
+    "margin_level": 1139.27
+  }
+}
+
+// Event: heartbeat
+{
+  "type": "heartbeat",
+  "timestamp": "2026-01-25T10:30:15Z",
+  "agent_id": "agent_1",
+  "status": "connected"
+}
+```
+
+### 3.3 Comandos Recibidos del Gateway
+
+```json
+// Command: execute_trade
+{
+  "command": "execute_trade",
+  "request_id": "uuid-1234",
+  "data": {
+    "symbol": "BTCUSD",
+    "type": "buy",
+    "lots": 0.1,
+    "stop_loss": 89150.00,
+    "take_profit": 89850.00,
+    "comment": "From trading-platform"
+  }
+}
+
+// Response: trade_executed
+{
+  "type": "trade_executed",
+  "request_id": "uuid-1234",
+  "success": true,
+  "data": {
+    "ticket": 123457,
+    "open_price": 89450.00
+  }
+}
+
+// Command: modify_position
+{
+  "command": "modify_position",
+  "request_id": "uuid-1235",
+  "data": {
+    "ticket": 123456,
+    "stop_loss": 89200.00,
+    "take_profit": 89900.00
+  }
+}
+
+// Command: close_position
+{
+  "command": "close_position",
+  "request_id": "uuid-1236",
+  "data": {
+    "ticket": 123456
+  }
+}
+```
+
+### 3.4 Código MQL4 (Pseudocódigo)
+
+```mql4
+//+------------------------------------------------------------------+
+//|                                      TradingPlatform_EA.mq4     |
+//|                              Copyright 2026, Trading Platform   |
+//+------------------------------------------------------------------+
+
+#property strict
+
+// WebSocket library (external)
+#include <WebSocket.mqh>
+
+// Configuration
+input string GatewayURL = "ws://localhost:8090/mt4/agent_1";
+input string AgentID = "agent_1";
+input int HeartbeatInterval = 5000; // 5 seconds
+
+WebSocket ws;
+datetime lastHeartbeat = 0;
+
+//+------------------------------------------------------------------+
+//| Expert initialization function                                   |
+//+------------------------------------------------------------------+
+int OnInit() {
+  // Connect to MT4 Gateway
+  if (!ws.Connect(GatewayURL)) {
+    Print("Failed to connect to MT4 Gateway");
+    return INIT_FAILED;
+  }
+
+  Print("Connected to MT4 Gateway: ", GatewayURL);
+  return INIT_SUCCEEDED;
+}
+
+//+------------------------------------------------------------------+
+//| Expert tick function                                             |
+//+------------------------------------------------------------------+
+void OnTick() {
+  // Send heartbeat every 5 seconds
+  if (TimeCurrent() - lastHeartbeat > HeartbeatInterval / 1000) {
+    SendHeartbeat();
+    lastHeartbeat = TimeCurrent();
+  }
+
+  // Process incoming commands from gateway
+  string command = ws.Receive();
+  if (StringLen(command) > 0) {
+    ProcessCommand(command);
+  }
+}
+
+//+------------------------------------------------------------------+
+//| Trade transaction event                                          |
+//+------------------------------------------------------------------+
+void OnTrade() {
+  // Detect new positions
+  for (int i = 0; i < OrdersTotal(); i++) {
+    if (OrderSelect(i, SELECT_BY_POS, MODE_TRADES)) {
+      if (OrderOpenTime() > lastPositionCheck) {
+        SendPositionOpened(OrderTicket());
+      }
+    }
+  }
+
+  // Detect closed positions
+  for (int i = 0; i < OrdersHistoryTotal(); i++) {
+    if (OrderSelect(i, SELECT_BY_POS, MODE_HISTORY)) {
+      if (OrderCloseTime() > lastPositionCheck) {
+        SendPositionClosed(OrderTicket());
+      }
+    }
+  }
+
+  lastPositionCheck = TimeCurrent();
+}
+
+//+------------------------------------------------------------------+
+//| Send position opened event                                       |
+//+------------------------------------------------------------------+
+void SendPositionOpened(int ticket) {
+  if (!OrderSelect(ticket, SELECT_BY_TICKET)) return;
+
+  string json = StringFormat(
+    "{\"type\":\"position_opened\",\"timestamp\":\"%s\",\"data\":{\"ticket\":%d,\"symbol\":\"%s\",\"type\":\"%s\",\"lots\":%.2f,\"open_price\":%.5f,\"stop_loss\":%.5f,\"take_profit\":%.5f}}",
+    TimeToString(TimeCurrent(), TIME_DATE|TIME_SECONDS),
+    ticket,
+    OrderSymbol(),
+    OrderType() == OP_BUY ? "buy" : "sell",
+    OrderLots(),
+    OrderOpenPrice(),
+    OrderStopLoss(),
+    OrderTakeProfit()
+  );
+
+  ws.Send(json);
+}
+
+//+------------------------------------------------------------------+
+//| Process command from gateway                                     |
+//+------------------------------------------------------------------+
+void ProcessCommand(string command) {
+  // Parse JSON command
+  string cmdType = ParseJSONString(command, "command");
+
+  if (cmdType == "execute_trade") {
+    ExecuteTradeCommand(command);
+  }
+  else if (cmdType == "modify_position") {
+    ModifyPositionCommand(command);
+  }
+  else if (cmdType == "close_position") {
+    ClosePositionCommand(command);
+  }
+}
+
+//+------------------------------------------------------------------+
+```
+
+---
+
+## 4. MT4 Gateway (Python FastAPI)
+
+### 4.1 Responsabilidades
+
+- Recibir conexiones WebSocket de MT4 Expert Advisors
+- Parsear eventos MQL4 a JSON estructurado
+- Reenviar eventos a Backend WebSocket Server
+- Recibir comandos desde Backend y enviarlos a MT4
+
+### 4.2 Estructura de Proyecto
+
+```
+apps/mt4-gateway/
+├── main.py                      # FastAPI app
+├── websocket/
+│   ├── __init__.py
+│   ├── mt4_handler.py           # Maneja conexiones MT4
+│   ├── backend_forwarder.py     # Reenvía a backend
+│   └── parser.py                # Parse MQL4 JSON
+├── models/
+│   ├── events.py                # Pydantic models para eventos
+│   └── commands.py              # Pydantic models para comandos
+├── config.py
+├── requirements.txt
+└── tests/
+    └── test_websocket.py
+```
+
+### 4.3 Código Python (FastAPI)
+
+```python
+# main.py
+from fastapi import FastAPI, WebSocket, WebSocketDisconnect
+from typing import Dict
+import asyncio
+import websockets
+import json
+
+app = FastAPI(title="MT4 Gateway")
+
+# Active MT4 connections
+active_connections: Dict[str, WebSocket] = {}
+
+# Backend WebSocket URL
+BACKEND_WS_URL = "ws://localhost:3082/mt4"
+backend_ws = None
+
+@app.on_event("startup")
+async def startup():
+    """Connect to backend WebSocket on startup"""
+    global backend_ws
+    try:
+        backend_ws = await websockets.connect(BACKEND_WS_URL)
+        print(f"Connected to backend: {BACKEND_WS_URL}")
+    except Exception as e:
+        print(f"Failed to connect to backend: {e}")
+
+@app.websocket("/mt4/{agent_id}")
+async def mt4_websocket(websocket: WebSocket, agent_id: str):
+    """
+    Handle WebSocket connection from MT4 Expert Advisor
+    """
+    await websocket.accept()
+    active_connections[agent_id] = websocket
+
+    print(f"MT4 Agent {agent_id} connected")
+
+    try:
+        while True:
+            # Receive event from MT4
+            data = await websocket.receive_text()
+            event = json.loads(data)
+
+            print(f"Received from MT4 {agent_id}: {event['type']}")
+
+            # Add agent_id to event
+            event['agent_id'] = agent_id
+
+            # Forward to backend
+            if backend_ws:
+                await backend_ws.send(json.dumps(event))
+
+    except WebSocketDisconnect:
+        print(f"MT4 Agent {agent_id} disconnected")
+        del active_connections[agent_id]
+
+@app.websocket("/commands")
+async def commands_websocket(websocket: WebSocket):
+    """
+    Receive commands from backend and forward to MT4
+    """
+    await websocket.accept()
+
+    try:
+        while True:
+            # Receive command from backend
+            data = await websocket.receive_text()
+            command = json.loads(data)
+
+            agent_id = command.get('agent_id')
+            if agent_id in active_connections:
+                # Forward command to MT4
+                mt4_ws = active_connections[agent_id]
+                await mt4_ws.send_text(json.dumps(command))
+            else:
+                print(f"Agent {agent_id} not connected")
+
+    except WebSocketDisconnect:
+        print("Backend commands channel disconnected")
+
+# Health check
+@app.get("/health")
+async def health():
+    return {
+        "status": "ok",
+        "active_agents": len(active_connections),
+        "backend_connected": backend_ws is not None
+    }
+```
+
+---
+
+## 5. Backend WebSocket Server (Express)
+
+### 5.1 Estructura
+
+```
+apps/backend/src/websocket/
+├── server.ts                    # WebSocket server setup
+├── handlers/
+│   ├── mt4Handler.ts            # Handle MT4 events
+│   ├── authHandler.ts           # Authenticate connections
+│   └── broadcastHandler.ts      # Broadcast to clients
+├── middleware/
+│   └── authMiddleware.ts        # JWT validation
+└── types/
+    └── mt4Events.ts             # TypeScript interfaces
+```
+
+### 5.2 Código TypeScript (Backend)
+
+```typescript
+// server.ts
+import { Server } from 'socket.io'
+import { createServer } from 'http'
+import express from 'express'
+import { verifyJWT } from './middleware/authMiddleware'
+
+const app = express()
+const httpServer = createServer(app)
+const io = new Server(httpServer, {
+  cors: { origin: 'http://localhost:3000' }
+})
+
+// Namespace for MT4 events
+const mt4Namespace = io.of('/mt4')
+
+mt4Namespace.use((socket, next) => {
+  // Authenticate client (frontend users)
+  const token = socket.handshake.auth.token
+  try {
+    const user = verifyJWT(token)
+    socket.data.user = user
+    next()
+  } catch (error) {
+    next(new Error('Authentication failed'))
+  }
+})
+
+mt4Namespace.on('connection', (socket) => {
+  console.log(`Client connected: ${socket.data.user.id}`)
+
+  // Join room based on user ID (to receive only their MT4 events)
+  socket.join(`user_${socket.data.user.id}`)
+
+  socket.on('disconnect', () => {
+    console.log(`Client disconnected: ${socket.data.user.id}`)
+  })
+})
+
+// Receive events from MT4 Gateway and broadcast to frontend
+const WebSocket = require('ws')
+const wss = new WebSocket.Server({ port: 3082 })
+
+wss.on('connection', (ws) => {
+  console.log('MT4 Gateway connected')
+
+  ws.on('message', (message: string) => {
+    const event = JSON.parse(message)
+
+    console.log(`MT4 Event: ${event.type}`)
+
+    // Determine which user to send to (based on agent_id → userId mapping)
+    const userId = getU serIdByAgentId(event.agent_id)
+
+    if (userId) {
+      // Broadcast to specific user's room
+      mt4Namespace.to(`user_${userId}`).emit('mt4_event', event)
+    }
+  })
+
+  ws.on('close', () => {
+    console.log('MT4 Gateway disconnected')
+  })
+})
+
+httpServer.listen(3082, () => {
+  console.log('WebSocket server running on port 3082')
+})
+```
+
+---
+
+## 6. Frontend Components (React)
+
+### 6.1 Custom Hook: useMT4WebSocket
+
+```typescript
+// hooks/useMT4WebSocket.ts
+import { useEffect, useRef } from 'react'
+import { io, Socket } from 'socket.io-client'
+import { useMT4Store } from '@/stores/mt4.store'
+import { useAuthStore } from '@/stores/auth.store'
+
+export const useMT4WebSocket = () => {
+  const socketRef = useRef<Socket | null>(null)
+  const token = useAuthStore(state => state.token)
+  const { addPosition, updatePosition, removePosition, updateAccount } = useMT4Store()
+
+  useEffect(() => {
+    if (!token) return
+
+    // Connect to backend WebSocket
+    const socket = io('ws://localhost:3082/mt4', {
+      auth: { token }
+    })
+
+    socketRef.current = socket
+
+    socket.on('connect', () => {
+      console.log('MT4 WebSocket connected')
+    })
+
+    socket.on('mt4_event', (event) => {
+      console.log('MT4 Event received:', event)
+
+      switch (event.type) {
+        case 'position_opened':
+          addPosition(event.data)
+          break
+
+        case 'position_closed':
+          removePosition(event.data.ticket)
+          break
+
+        case 'position_modified':
+          updatePosition(event.data.ticket, event.data)
+          break
+
+        case 'account_update':
+          updateAccount(event.data)
+          break
+
+        case 'heartbeat':
+          // Update connection status
+          useMT4Store.setState({ lastHeartbeat: new Date(event.timestamp) })
+          break
+      }
+    })
+
+    socket.on('disconnect', () => {
+      console.log('MT4 WebSocket disconnected')
+    })
+
+    return () => {
+      socket.disconnect()
+    }
+  }, [token])
+
+  return socketRef.current
+}
+```
+
+### 6.2 Zustand Store: mt4Store
+
+```typescript
+// stores/mt4.store.ts
+import { create } from 'zustand'
+
+interface MT4Position {
+  ticket: number
+  symbol: string
+  type: 'buy' | 'sell'
+  lots: number
+  open_price: number
+  stop_loss: number
+  take_profit: number
+  profit: number
+}
+
+interface MT4Account {
+  balance: number
+  equity: number
+  margin: number
+  margin_free: number
+  margin_level: number
+}
+
+interface MT4Store {
+  // State
+  positions: MT4Position[]
+  account: MT4Account | null
+  isConnected: boolean
+  lastHeartbeat: Date | null
+
+  // Actions
+  addPosition: (position: MT4Position) => void
+  updatePosition: (ticket: number, updates: Partial<MT4Position>) => void
+  removePosition: (ticket: number) => void
+  updateAccount: (account: MT4Account) => void
+}
+
+export const useMT4Store = create<MT4Store>((set) => ({
+  positions: [],
+  account: null,
+  isConnected: false,
+  lastHeartbeat: null,
+
+  addPosition: (position) =>
+    set((state) => ({
+      positions: [...state.positions, position]
+    })),
+
+  updatePosition: (ticket, updates) =>
+    set((state) => ({
+      positions: state.positions.map((p) =>
+        p.ticket === ticket ? { ...p, ...updates } : p
+      )
+    })),
+
+  removePosition: (ticket) =>
+    set((state) => ({
+      positions: state.positions.filter((p) => p.ticket !== ticket)
+    })),
+
+  updateAccount: (account) => set({ account })
+}))
+```
+
+### 6.3 Component: MT4LiveTradesPanel
+
+```typescript
+// components/MT4LiveTradesPanel.tsx
+import React from 'react'
+import { useMT4WebSocket } from '@/hooks/useMT4WebSocket'
+import { useMT4Store } from '@/stores/mt4.store'
+
+export const MT4LiveTradesPanel: React.FC = () => {
+  useMT4WebSocket() // Initialize WebSocket connection
+
+  const positions = useMT4Store(state => state.positions)
+  const account = useMT4Store(state => state.account)
+
+  return (
+    <div className="bg-gray-900 rounded-lg p-4">
+      <h2 className="text-xl font-bold mb-4">MT4 Live Trades</h2>
+
+      {/* Account Summary */}
+      {account && (
+        <div className="grid grid-cols-4 gap-4 mb-6">
+          <div>
+            <span className="text-gray-400">Balance</span>
+            <p className="text-2xl font-bold">${account.balance.toFixed(2)}</p>
+          </div>
+          <div>
+            <span className="text-gray-400">Equity</span>
+            <p className="text-2xl font-bold">${account.equity.toFixed(2)}</p>
+          </div>
+          <div>
+            <span className="text-gray-400">Margin</span>
+            <p className="text-2xl">${account.margin.toFixed(2)}</p>
+          </div>
+          <div>
+            <span className="text-gray-400">Free Margin</span>
+            <p className="text-2xl">${account.margin_free.toFixed(2)}</p>
+          </div>
+        </div>
+      )}
+
+      {/* Positions Table */}
+      <table className="w-full">
+        <thead>
+          <tr className="text-left border-b border-gray-700">
+            <th>Ticket</th>
+            <th>Symbol</th>
+            <th>Type</th>
+            <th>Lots</th>
+            <th>Open Price</th>
+            <th>S/L</th>
+            <th>T/P</th>
+            <th>Profit</th>
+          </tr>
+        </thead>
+        <tbody>
+          {positions.map((position) => (
+            <tr key={position.ticket} className="border-b border-gray-800">
+              <td>{position.ticket}</td>
+              <td className="font-mono">{position.symbol}</td>
+              <td>
+                <span className={position.type === 'buy' ? 'text-green-500' : 'text-red-500'}>
+                  {position.type.toUpperCase()}
+                </span>
+              </td>
+              <td>{position.lots.toFixed(2)}</td>
+              <td>{position.open_price.toFixed(5)}</td>
+              <td>{position.stop_loss.toFixed(5)}</td>
+              <td>{position.take_profit.toFixed(5)}</td>
+              <td className={position.profit >= 0 ? 'text-green-500' : 'text-red-500'}>
+                ${position.profit.toFixed(2)}
+              </td>
+            </tr>
+          ))}
+
+          {positions.length === 0 && (
+            <tr>
+              <td colSpan={8} className="text-center py-8 text-gray-500">
+                No active positions
+              </td>
+            </tr>
+          )}
+        </tbody>
+      </table>
+    </div>
+  )
+}
+```
+
+---
+
+## 7. Plan de Implementación (180h)
+
+### Fase 1: MT4 Expert Advisor (60h)
+
+- [ ] Investigar librerías WebSocket para MQL4 (10h)
+- [ ] Implementar conexión WebSocket (15h)
+- [ ] Implementar eventos (position_opened, closed, etc.) (20h)
+- [ ] Implementar comandos remotos (execute_trade, etc.) (10h)
+- [ ] Testing en demo account (5h)
+
+### Fase 2: MT4 Gateway (Python) (40h)
+
+- [ ] Setup FastAPI project (5h)
+- [ ] Implementar WebSocket handler para MT4 (10h)
+- [ ] Implementar forwarder a backend (10h)
+- [ ] Parsers y validación de eventos (5h)
+- [ ] Testing + error handling (10h)
+
+### Fase 3: Backend WebSocket Server (30h)
+
+- [ ] Setup Socket.io en Express (5h)
+- [ ] Implementar MT4 namespace (10h)
+- [ ] Implementar auth middleware JWT (5h)
+- [ ] Implementar broadcast logic (5h)
+- [ ] Testing + integración (5h)
+
+### Fase 4: Frontend Components (30h)
+
+- [ ] Crear mt4Store (Zustand) (5h)
+- [ ] Implementar useMT4WebSocket hook (8h)
+- [ ] Implementar MT4LiveTradesPanel (8h)
+- [ ] Implementar MT4PositionsManager (5h)
+- [ ] Implementar MT4ConnectionStatus (4h)
+
+### Fase 5: Testing E2E (20h)
+
+- [ ] Setup test environment (5h)
+- [ ] Tests MT4 → Gateway (5h)
+- [ ] Tests Gateway → Backend (5h)
+- [ ] Tests Backend → Frontend (5h)
+
+---
+
+## 8. Referencias
+
+- **Auditoría:** `TASK-002/entregables/analisis/OQI-009/OQI-009-ANALISIS-COMPONENTES.md`
+- **MetaQuotes MQL4 Reference:** https://docs.mql4.com/
+- **Socket.io Documentation:** https://socket.io/docs/
+- **FastAPI WebSockets:** https://fastapi.tiangolo.com/advanced/websockets/
+
+---
+
+**Última actualización:** 2026-01-25
+**Estado:** BLOCKER P0 - Requiere implementación urgente
+**Responsable:** Backend Lead + MT4 Specialist
+