diff --git a/src/quant_platform_kit/common/runtime_inputs.py b/src/quant_platform_kit/common/runtime_inputs.py
index 852b1cf..90c5724 100644
--- a/src/quant_platform_kit/common/runtime_inputs.py
+++ b/src/quant_platform_kit/common/runtime_inputs.py
@@ -448,12 +448,18 @@ def build_account_state_from_portfolio_snapshot(
     if resolved_liquid_cash is None:
         resolved_liquid_cash = 0.0
 
+    total_strategy_equity = (
+        float(resolved_liquid_cash) + sum(float(value) for value in market_values.values())
+        if filter_enabled
+        else float(snapshot.total_equity)
+    )
+
     account_state = {
         "available_cash": float(resolved_liquid_cash),
         "market_values": market_values,
         "quantities": quantities,
         "sellable_quantities": sellable_quantities,
-        "total_strategy_equity": float(snapshot.total_equity),
+        "total_strategy_equity": total_strategy_equity,
     }
     raw_cash_by_currency = (
         metadata.get("cash_by_currency") if isinstance(metadata, Mapping) else None
diff --git a/tests/test_strategy_contracts.py b/tests/test_strategy_contracts.py
index 5f37f66..423322e 100644
--- a/tests/test_strategy_contracts.py
+++ b/tests/test_strategy_contracts.py
@@ -353,9 +353,24 @@ def test_build_account_state_from_portfolio_snapshot_filters_strategy_symbols(se
             account_state["sellable_quantities"],
             {"TQQQ": 3, "BOXX": 10, "QQQI": 0},
         )
-        self.assertEqual(account_state["total_strategy_equity"], 50000.0)
+        self.assertEqual(account_state["total_strategy_equity"], 14000.0)
         self.assertEqual(account_state["cash_by_currency"], {"USD": 8000.0, "SGD": 350.0})
 
+    def test_build_account_state_without_strategy_symbols_preserves_snapshot_equity(self) -> None:
+        snapshot = PortfolioSnapshot(
+            as_of="2026-04-09",
+            total_equity=50000.0,
+            buying_power=12000.0,
+            positions=(
+                Position(symbol="TQQQ", quantity=5, market_value=1000.0),
+                Position(symbol="QQQ", quantity=99, market_value=9999.0),
+            ),
+        )
+
+        account_state = build_account_state_from_portfolio_snapshot(snapshot)
+
+        self.assertEqual(account_state["total_strategy_equity"], 50000.0)
+
     def test_build_portfolio_snapshot_from_account_state_keeps_strategy_symbol_order(self) -> None:
         snapshot = build_portfolio_snapshot_from_account_state(
             {