diff --git a/crates/fidc-core/src/platform_expr_strategy.rs b/crates/fidc-core/src/platform_expr_strategy.rs
index 67c08ce..5a34eff 100644
--- a/crates/fidc-core/src/platform_expr_strategy.rs
+++ b/crates/fidc-core/src/platform_expr_strategy.rs
@@ -8197,7 +8197,6 @@ impl Strategy for PlatformExprStrategy {
         let mut intraday_attempted_buys = BTreeSet::<String>::new();
         let mut same_bar_buy_symbols = BTreeSet::<String>::new();
         let mut delayed_sold_symbols = BTreeSet::<String>::new();
-        let mut delayed_open_exit_submitted = false;
         let mut unresolved_stop_loss_symbols = BTreeSet::<String>::new();
         let mut pending_risk_level_forced_exit_symbols = BTreeSet::<String>::new();
         let delayed_limit_exit_time = self
@@ -8301,7 +8300,6 @@ impl Strategy for PlatformExprStrategy {
                 end_time: Some(delayed_limit_exit_time),
                 reason: "delayed_limit_open_sell".to_string(),
             });
-            delayed_open_exit_submitted = true;
             delayed_sold_symbols.insert(symbol.clone());
             self.forget_position_entry_date(&symbol);
             let projected_sold = if ctx
@@ -8407,10 +8405,7 @@ impl Strategy for PlatformExprStrategy {
         let mut daily_top_up_pending_buy_value = 0.0_f64;
         let mut pending_full_close_symbols = BTreeSet::<String>::new();
         let mut slot_blocking_symbols = BTreeSet::<String>::new();
-        let should_block_released_slots_after_top_up =
-            delayed_open_exit_submitted && !self.config.release_slot_on_exit_signal;
-        let should_block_partial_exit_residual_slot =
-            should_block_released_slots_after_top_up || trading_ratio < 1.0;
+        let should_block_partial_exit_residual_slot = trading_ratio < 1.0;
         let interleaved_pending_full_close_symbols = BTreeSet::<String>::new();
         let risk_level_forced_exit_time = self.risk_level_forced_exit_time();
         self.pending_full_close_symbols.retain(|symbol| {
@@ -8870,8 +8865,7 @@ impl Strategy for PlatformExprStrategy {
                     target_value: 0.0,
                     reason: "stop_loss_exit".to_string(),
                 });
-                if daily_top_up_pending_buy_value > 0.0 && should_block_released_slots_after_top_up
-                {
+                if daily_top_up_pending_buy_value > 0.0 && trading_ratio < 1.0 {
                     slot_blocking_symbols.insert(position.symbol.clone());
                 }
                 self.forget_position_entry_date(&position.symbol);
@@ -23324,7 +23318,7 @@ mod tests {
         cfg.stop_loss_expr = "false".to_string();
         cfg.take_profit_expr = "1.1".to_string();
         cfg.daily_top_up_enabled = true;
-        cfg.release_slot_on_exit_signal = true;
+        cfg.release_slot_on_exit_signal = false;
         cfg.aiquant_transaction_cost = true;
         cfg.intraday_execution_time = Some(NaiveTime::from_hms_opt(10, 18, 0).unwrap());
         cfg.delayed_limit_open_exit_enabled = true;
diff --git a/crates/fidc-core/src/platform_strategy_spec.rs b/crates/fidc-core/src/platform_strategy_spec.rs
index 830091d..a255472 100644
--- a/crates/fidc-core/src/platform_strategy_spec.rs
+++ b/crates/fidc-core/src/platform_strategy_spec.rs
@@ -1793,12 +1793,6 @@ pub fn platform_expr_config_from_spec(
         {
             cfg.retry_empty_rebalance = true;
         }
-        if trading
-            .and_then(|item| item.release_slot_on_exit_signal)
-            .is_none()
-        {
-            cfg.release_slot_on_exit_signal = true;
-        }
     }
     let trade_times = spec_trade_times(spec);
     if let Some(main_trade_time) = trade_times.last().copied() {
@@ -3093,51 +3087,6 @@ mod tests {
         );
     }
 
-    #[test]
-    fn aiquant_compatibility_defaults_release_slot_on_exit_signal() {
-        let spec = serde_json::json!({
-            "engineConfig": {
-                "profileName": "cn_a_microcap_v1",
-                "compatibilityProfile": "aiquant_rqalpha"
-            },
-            "runtimeExpressions": {
-                "trading": {
-                    "dailyTopUp": true
-                }
-            }
-        });
-
-        let cfg = platform_expr_config_from_value("", "", &spec).expect("config");
-
-        assert!(
-            cfg.release_slot_on_exit_signal,
-            "AiQuant compatibility must release the strategy working slot when an exit signal is emitted"
-        );
-    }
-
-    #[test]
-    fn aiquant_compatibility_respects_explicit_release_slot_false() {
-        let spec = serde_json::json!({
-            "engineConfig": {
-                "profileName": "cn_a_microcap_v1",
-                "compatibilityProfile": "aiquant_rqalpha"
-            },
-            "runtimeExpressions": {
-                "trading": {
-                    "dailyTopUp": true,
-                    "releaseSlotOnExitSignal": false
-                }
-            }
-        });
-
-        let cfg = platform_expr_config_from_value("", "", &spec).expect("config");
-
-        assert!(
-            !cfg.release_slot_on_exit_signal,
-            "explicit FIDC semantics must override the AiQuant compatibility default"
-        );
-    }
-
     #[test]
     fn parses_explicit_delayed_limit_open_exit() {
         let spec = serde_json::json!({