diff --git a/backend/app/routers/collections.py b/backend/app/routers/collections.py
index b2325e1..2307e4e 100644
--- a/backend/app/routers/collections.py
+++ b/backend/app/routers/collections.py
@@ -398,13 +398,21 @@ def get_stats(
         "byGradingScore": [{"score": s, "count": n} for s, n in by_grading_score],
         "bySpecialMark": [{"mark": m, "count": n} for m, n in by_special_mark],
         "byNumberCategory": [{"numberCategory": n, "count": c} for n, c in by_number_category],
-        # 盈亏统计（只统计已售且有价格的藏品）
+        # 盈亏统计
+        profit_count = db.query(func.count(Collection.f99_90_id)).filter(
+            sold_filter, Collection.f05_42_goal_price > Collection.f05_40_cost_price
+        ).scalar() or 0
+        
+        loss_count = db.query(func.count(Collection.f99_90_id)).filter(
+            sold_filter, Collection.f05_42_goal_price <= Collection.f05_40_cost_price
+        ).scalar() or 0
+        
         "byProfitLoss": [
-            {"type": "profit", "label": "盈利", "count": sum(1 for c in sold_collections if c.f05_42_goal_price and c.f05_40_cost_price and c.f05_42_goal_price > c.f05_40_cost_price)},
-            {"type": "loss", "label": "亏损", "count": sum(1 for c in sold_collections if c.f05_42_goal_price and c.f05_40_cost_price and c.f05_42_goal_price <= c.f05_40_cost_price)}
+            {"type": "profit", "label": "盈利", "count": profit_count},
+            {"type": "loss", "label": "亏损", "count": loss_count}
         ],
-        "totalCost": total_cost,
-        "totalTarget": sum(c.f05_41_target_price or 0 for c in all_collections),
+        "totalCost": cost_result,
+        "totalTarget": target_result,
         "expectedProfit": expected_profit,
         "totalRevenue": total_revenue,
         "totalProfit": total_profit