From cad8877b7a5e9b1943e8fa9baa08b40c9fd8c4dc Mon Sep 17 00:00:00 2001
From: boris <shuaibo.zhang@hotmail.com>
Date: Wed, 1 Jul 2026 15:00:55 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3AiQuant=E7=AD=89=E6=9D=83?=
 =?UTF-8?q?=E8=B0=83=E4=BB=93=E9=A2=84=E7=AE=97?=
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---
 crates/fidc-core/src/engine.rs                |  6 +---
 .../fidc-core/src/platform_expr_strategy.rs   | 16 ++++------
 crates/fidc-core/tests/corporate_actions.rs   | 30 ++++++++++++-------
 3 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/crates/fidc-core/src/engine.rs b/crates/fidc-core/src/engine.rs
index 8b310dd..62e2c5f 100644
--- a/crates/fidc-core/src/engine.rs
+++ b/crates/fidc-core/src/engine.rs
@@ -2884,11 +2884,7 @@ where
                     });
                     let note = format!(
                         "cash_dividend_receivable {} share_cash={:.6} quantity={} payable_date={} cash={:.2}",
-                        action.symbol,
-                        action.share_cash,
-                        quantity_after,
-                        payable_date,
-                        cash_delta
+                        action.symbol, action.share_cash, quantity_after, payable_date, cash_delta
                     );
                     notes.push(note.clone());
                     report.account_events.push(AccountEvent {
diff --git a/crates/fidc-core/src/platform_expr_strategy.rs b/crates/fidc-core/src/platform_expr_strategy.rs
index 9629164..bef9713 100644
--- a/crates/fidc-core/src/platform_expr_strategy.rs
+++ b/crates/fidc-core/src/platform_expr_strategy.rs
@@ -7967,14 +7967,8 @@ impl Strategy for PlatformExprStrategy {
                 slot_working_symbols.remove(symbol);
             }
 
-            if !self.config.aiquant_transaction_cost {
-                aiquant_available_cash = projected.cash();
-            }
-            let fixed_buy_cash = if self.config.aiquant_transaction_cost {
-                aiquant_available_cash * trading_ratio / selection_limit as f64
-            } else {
-                aiquant_total_value * trading_ratio / selection_limit as f64
-            };
+            aiquant_available_cash = projected.cash();
+            let fixed_buy_cash = aiquant_total_value * trading_ratio / selection_limit as f64;
             let target_budget = aiquant_total_value * trading_ratio;
             let mut rebalance_working_symbols = slot_working_symbols.clone();
             if self.config.release_slot_on_exit_signal {
@@ -18398,7 +18392,7 @@ mod tests {
     }
 
     #[test]
-    fn platform_aiquant_periodic_rebalance_uses_cash_divided_by_top_n_buy_budget() {
+    fn platform_aiquant_periodic_rebalance_uses_total_value_equal_weight_buy_budget() {
         let prev_date = d(2025, 5, 13);
         let date = d(2025, 5, 14);
         let retained_symbols = (1..=17)
@@ -18597,7 +18591,7 @@ mod tests {
         assert!(
             decision.order_intents.iter().all(|intent| match intent {
                 OrderIntent::Value { value, reason, .. } if reason == "periodic_rebalance_buy" =>
-                    (*value - 6_500.0).abs() < 1e-6,
+                    (*value - 126_500.0).abs() < 1e-6,
                 _ => true,
             }),
             "{:?}",
@@ -18755,7 +18749,7 @@ mod tests {
                     reason,
                 } if symbol == "000002.SZ"
                     && reason == "periodic_rebalance_buy"
-                    && (*value - 5_000.0).abs() < 1e-6
+                    && (*value - 10_000.0).abs() < 1e-6
             )),
             "{:?}",
             decision.order_intents
diff --git a/crates/fidc-core/tests/corporate_actions.rs b/crates/fidc-core/tests/corporate_actions.rs
index 1aa9fe7..7ede34e 100644
--- a/crates/fidc-core/tests/corporate_actions.rs
+++ b/crates/fidc-core/tests/corporate_actions.rs
@@ -410,8 +410,14 @@ fn engine_settles_same_day_dividend_after_split_for_aiquant_semantics() {
             delisted_at: None,
             status: "active".to_string(),
         }],
-        vec![stock_market_snapshot(buy_date), stock_market_snapshot(ex_date)],
-        vec![stock_factor_snapshot(buy_date), stock_factor_snapshot(ex_date)],
+        vec![
+            stock_market_snapshot(buy_date),
+            stock_market_snapshot(ex_date),
+        ],
+        vec![
+            stock_factor_snapshot(buy_date),
+            stock_factor_snapshot(ex_date),
+        ],
         vec![stock_candidate(buy_date), stock_candidate(ex_date)],
         vec![benchmark_snapshot(buy_date), benchmark_snapshot(ex_date)],
         vec![CorporateAction {
@@ -469,12 +475,16 @@ fn engine_settles_same_day_dividend_after_split_for_aiquant_semantics() {
     assert_eq!(reinvest_fill.quantity, 100);
     assert!((reinvest_fill.price - ((10.0 - 1.05) / 1.2)).abs() < 1e-9);
 
-    assert!(result
-        .position_events
-        .iter()
-        .any(|event| event.reason == "stock_split 1.200000" && event.quantity_after == 1_200));
-    assert!(result
-        .account_events
-        .iter()
-        .any(|event| event.note.contains("cash_receivable_reinvested")));
+    assert!(
+        result
+            .position_events
+            .iter()
+            .any(|event| event.reason == "stock_split 1.200000" && event.quantity_after == 1_200)
+    );
+    assert!(
+        result
+            .account_events
+            .iter()
+            .any(|event| event.note.contains("cash_receivable_reinvested"))
+    );
 }