diff --git a/services/trading/backtest_replay.py b/services/trading/backtest_replay.py
index c7578d1..4f85c7b 100644
--- a/services/trading/backtest_replay.py
+++ b/services/trading/backtest_replay.py
@@ -109,12 +109,14 @@ class BacktestReplay:
                 # Process recommendations for this day
                 for rec in day_recs:
                     # Set a timestamp within trading window for evaluation
+                    # Use 11:00 AM ET (within trading window) for simulation
+                    from services.trading.trading_window import ET
                     sim_time = datetime(
                         current_date.year,
                         current_date.month,
                         current_date.day,
-                        10, 0, 0,
-                        tzinfo=timezone.utc,
+                        11, 0, 0,
+                        tzinfo=ET,
                     )
 
                     decision = engine.evaluate_recommendation(