diff --git a/services/trading/backtest_replay.py b/services/trading/backtest_replay.py
index a68b579..89c5b6d 100644
--- a/services/trading/backtest_replay.py
+++ b/services/trading/backtest_replay.py
@@ -176,7 +176,7 @@ class BacktestReplay:
                         price = rec.get("current_price", 0.0)
                         qty = decision.computed_share_quantity or 0
 
-                        if qty > 0 and price > 0:
+                        if qty > 0 and price > 0 and ticker not in simulated_positions:
                             cost = price * qty
                             if cost <= portfolio_state.active_pool:
                                 simulated_positions[ticker] = {