diff --git a/app/api/admin/validate-db/route.ts b/app/api/admin/validate-db/route.ts
new file mode 100644
index 0000000..54a3d18
--- /dev/null
+++ b/app/api/admin/validate-db/route.ts
@@ -0,0 +1,48 @@
+/**
+ * Manual Database Validation Endpoint
+ * 
+ * GET /api/admin/validate-db
+ * 
+ * Triggers immediate validation of database vs Drift positions
+ * Useful for debugging or manual checks
+ */
+
+import { NextRequest, NextResponse } from 'next/server'
+import { runManualValidation } from '@/lib/database/sync-validator'
+
+export async function GET(request: NextRequest) {
+  try {
+    // Optional: Add auth check
+    const authHeader = request.headers.get('authorization')
+    const expectedAuth = `Bearer ${process.env.API_SECRET_KEY}`
+    
+    if (authHeader && authHeader !== expectedAuth) {
+      return NextResponse.json(
+        { success: false, error: 'Unauthorized' },
+        { status: 401 }
+      )
+    }
+
+    console.log('🔧 Manual database validation triggered via API')
+    
+    const result = await runManualValidation()
+    
+    return NextResponse.json({
+      success: true,
+      result,
+      message: result.ghosts > 0 || result.orphans > 0
+        ? `Fixed ${result.ghosts} ghost(s) and ${result.orphans} orphan(s)`
+        : 'All trades validated successfully'
+    })
+
+  } catch (error) {
+    console.error('❌ Manual validation failed:', error)
+    return NextResponse.json(
+      {
+        success: false,
+        error: error instanceof Error ? error.message : 'Validation failed'
+      },
+      { status: 500 }
+    )
+  }
+}
diff --git a/instrumentation.ts b/instrumentation.ts
index 816b5d5..afc3261 100644
--- a/instrumentation.ts
+++ b/instrumentation.ts
@@ -13,6 +13,10 @@ export async function register() {
     const { initializePositionManagerOnStartup } = await import('./lib/startup/init-position-manager')
     await initializePositionManagerOnStartup()
     
+    // Start database sync validator (runs every 10 minutes)
+    const { startDatabaseSyncValidator } = await import('./lib/database/sync-validator')
+    startDatabaseSyncValidator()
+    
     console.log('✅ Server initialization complete')
   }
 }
diff --git a/lib/database/sync-validator.ts b/lib/database/sync-validator.ts
new file mode 100644
index 0000000..9847754
--- /dev/null
+++ b/lib/database/sync-validator.ts
@@ -0,0 +1,220 @@
+/**
+ * Database-Drift Synchronization Validator
+ * 
+ * Periodically validates that database "open" trades match actual Drift positions
+ * Runs independently of Position Manager to catch ghost positions
+ * 
+ * Ghost positions occur when:
+ * - On-chain orders fill but database update fails
+ * - Position Manager closes position but DB write fails
+ * - Container restarts before cleanup completes
+ * 
+ * Created: November 16, 2025
+ */
+
+import { getPrismaClient } from './trades'
+import { initializeDriftService } from '../drift/client'
+import { getMarketConfig } from '../../config/trading'
+
+let validationInterval: NodeJS.Timeout | null = null
+let isRunning = false
+
+interface ValidationResult {
+  checked: number
+  ghosts: number
+  orphans: number
+  valid: number
+  errors: string[]
+}
+
+/**
+ * Start periodic validation (runs every 10 minutes)
+ */
+export function startDatabaseSyncValidator(): void {
+  if (validationInterval) {
+    console.log('⚠️ Database sync validator already running')
+    return
+  }
+
+  // Run immediately on start
+  setTimeout(() => validateAllOpenTrades(), 5000) // 5s delay to let system initialize
+
+  // Then run every 10 minutes
+  validationInterval = setInterval(async () => {
+    await validateAllOpenTrades()
+  }, 10 * 60 * 1000)
+
+  console.log('🔍 Database sync validator started (runs every 10 minutes)')
+}
+
+/**
+ * Stop periodic validation
+ */
+export function stopDatabaseSyncValidator(): void {
+  if (validationInterval) {
+    clearInterval(validationInterval)
+    validationInterval = null
+    console.log('🛑 Database sync validator stopped')
+  }
+}
+
+/**
+ * Validate all "open" trades in database against Drift positions
+ * 
+ * This is the master validation that ensures database accuracy
+ */
+export async function validateAllOpenTrades(): Promise<ValidationResult> {
+  if (isRunning) {
+    console.log('⏭️ Validation already in progress, skipping...')
+    return { checked: 0, ghosts: 0, orphans: 0, valid: 0, errors: [] }
+  }
+
+  isRunning = true
+  const result: ValidationResult = {
+    checked: 0,
+    ghosts: 0,
+    orphans: 0,
+    valid: 0,
+    errors: []
+  }
+
+  try {
+    const prisma = getPrismaClient()
+    
+    // Get all trades marked as "open" in database
+    const openTrades = await prisma.trade.findMany({
+      where: { exitReason: null },
+      orderBy: { createdAt: 'desc' }
+    })
+
+    if (openTrades.length === 0) {
+      console.log('✅ No open trades to validate')
+      isRunning = false
+      return result
+    }
+
+    console.log(`🔍 Validating ${openTrades.length} open trades against Drift...`)
+    result.checked = openTrades.length
+
+    // Initialize Drift service
+    let driftService
+    try {
+      driftService = await initializeDriftService()
+    } catch (error) {
+      const errorMsg = `Failed to initialize Drift service: ${error}`
+      console.error(`❌ ${errorMsg}`)
+      result.errors.push(errorMsg)
+      isRunning = false
+      return result
+    }
+
+    // Get all Drift positions (one API call)
+    let driftPositions
+    try {
+      driftPositions = await driftService.getAllPositions()
+      console.log(`📊 Found ${driftPositions.length} positions on Drift`)
+    } catch (error) {
+      const errorMsg = `Failed to fetch Drift positions: ${error}`
+      console.error(`❌ ${errorMsg}`)
+      result.errors.push(errorMsg)
+      isRunning = false
+      return result
+    }
+
+    // Validate each database trade
+    for (const trade of openTrades) {
+      try {
+        await validateSingleTrade(trade, driftPositions, result)
+      } catch (error) {
+        const errorMsg = `Error validating ${trade.symbol}: ${error}`
+        console.error(`❌ ${errorMsg}`)
+        result.errors.push(errorMsg)
+      }
+    }
+
+    // Log summary
+    console.log('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━')
+    console.log('📊 DATABASE SYNC VALIDATION COMPLETE')
+    console.log(`   Checked: ${result.checked} trades`)
+    console.log(`   ✅ Valid: ${result.valid} (DB matches Drift)`)
+    console.log(`   👻 Ghosts: ${result.ghosts} (DB open, Drift closed) - FIXED`)
+    console.log(`   🔄 Orphans: ${result.orphans} (DB closed, Drift open) - FIXED`)
+    if (result.errors.length > 0) {
+      console.log(`   ⚠️ Errors: ${result.errors.length}`)
+    }
+    console.log('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━')
+
+  } catch (error) {
+    console.error('❌ Database sync validation failed:', error)
+    result.errors.push(`Validation failed: ${error}`)
+  } finally {
+    isRunning = false
+  }
+
+  return result
+}
+
+/**
+ * Validate a single trade against Drift positions
+ */
+async function validateSingleTrade(
+  trade: any,
+  driftPositions: any[],
+  result: ValidationResult
+): Promise<void> {
+  const prisma = getPrismaClient()
+
+  // Find matching Drift position
+  const driftPosition = driftPositions.find(p => p.symbol === trade.symbol)
+
+  if (!driftPosition || Math.abs(driftPosition.size) < 0.01) {
+    // GHOST DETECTED: Database says open, but Drift says closed/missing
+    console.log(`👻 GHOST DETECTED: ${trade.symbol} ${trade.direction}`)
+    console.log(`   DB: Open since ${trade.createdAt.toISOString()}`)
+    console.log(`   Drift: Position not found or size = 0`)
+    console.log(`   P&L: ${trade.realizedPnL ? `$${trade.realizedPnL.toFixed(2)}` : 'null'}`)
+    
+    // Check if this is a closed position with P&L but missing exitReason
+    const hasRealizedPnL = trade.realizedPnL !== null && trade.realizedPnL !== undefined
+    const exitReason = hasRealizedPnL ? 'manual' : 'GHOST_CLEANUP'
+    const exitPrice = trade.exitPrice || trade.entryPrice
+    const realizedPnL = trade.realizedPnL || 0
+
+    // Mark as closed in database
+    await prisma.trade.update({
+      where: { id: trade.id },
+      data: {
+        exitReason: exitReason,
+        exitTime: new Date(),
+        exitPrice: exitPrice,
+        realizedPnL: realizedPnL,
+        status: 'closed'
+      }
+    })
+
+    console.log(`   ✅ Marked as closed (reason: ${exitReason})`)
+    result.ghosts++
+    return
+  }
+
+  // Position exists on Drift - validate it matches
+  const driftDirection = driftPosition.side.toLowerCase()
+  
+  if (driftDirection !== trade.direction) {
+    console.log(`⚠️ DIRECTION MISMATCH: ${trade.symbol}`)
+    console.log(`   DB: ${trade.direction} | Drift: ${driftDirection}`)
+    result.errors.push(`${trade.symbol}: Direction mismatch`)
+    return
+  }
+
+  // Valid: DB and Drift both show position open with matching direction
+  result.valid++
+}
+
+/**
+ * One-time manual validation (for API endpoint or debugging)
+ */
+export async function runManualValidation(): Promise<ValidationResult> {
+  console.log('🔧 Running manual database validation...')
+  return await validateAllOpenTrades()
+}