diff --git a/src/backend/app/db/schemas.py b/src/backend/app/db/schemas.py
index 0631066..db95b27 100644
--- a/src/backend/app/db/schemas.py
+++ b/src/backend/app/db/schemas.py
@@ -119,6 +119,7 @@ class SimulationResponse(BaseModel):
     signals: Optional[List[dict]]
     klines: Optional[List[dict]] = None  # Price data for chart
     trade_log: Optional[List[dict]] = None  # Trade activity log
+    portfolio: Optional[dict] = None  # Portfolio data
     current_candle_index: Optional[int] = None  # Progress: current candle
     total_candles: Optional[int] = None  # Progress: total candles
     candles_processed: Optional[int] = None  # Progress: candles processed