diff --git a/YLErpDAL/Modules/TradeModule/TradeServiceBase.cs b/YLErpDAL/Modules/TradeModule/TradeServiceBase.cs
index ef5d6cc3..e78e82ff 100644
--- a/YLErpDAL/Modules/TradeModule/TradeServiceBase.cs
+++ b/YLErpDAL/Modules/TradeModule/TradeServiceBase.cs
@@ -199,16 +199,41 @@ namespace YLErp.Modules.TradeModule
                 ProcessCategory = ResolveProcessCategory(td),
                 InitGroupId = UserBLL.GetApprovalProcessGroup(userId)
             };
-            // 了结场景：当次平仓名义本金 = 期初名义本金 × 平仓比例(UnwindPercentRate)，取绝对值
+            // 了结场景：取本次平仓名义本金
             if (td != null && ctx.ProcessCategory == ProcessCategoryConst.Close)
             {
-                var tc = DbContext.trade_cash
-                    .Where(t => t.TradeId == td.id && t.ValidState == ConsGlobal.InValid && !t.IsDeleted)
-                    .OrderByDescending(t => t.id)
-                    .FirstOrDefault();
-                if (tc != null && tc.UnwindPercentRate.HasValue && td.OriginalStockEqvNotional.HasValue)
+                if (td.TradeType == "收益互换")
                 {
-                    ctx.CurrentNotional = Math.Abs(td.OriginalStockEqvNotional.Value * tc.UnwindPercentRate.Value);
+                    // 互换：从 swap_event.EventData(JSON) 反序列化取 CloseNotionalValue
+                    var swapEvent = DbContext.swap_event
+                        .Where(x => x.SwapTradeId == td.id && !x.Invalid
+                            && (x.EventType == (int)SwapEventTypeEnum.平仓 || x.EventType == (int)SwapEventTypeEnum.互换))
+                        .OrderByDescending(x => x.id)
+                        .FirstOrDefault();
+                    if (swapEvent != null && !string.IsNullOrEmpty(swapEvent.EventData))
+                    {
+                        try
+                        {
+                            var unwindData = Newtonsoft.Json.JsonConvert.DeserializeObject<UnwindData>(swapEvent.EventData);
+                            if (unwindData != null)
+                            {
+                                ctx.CurrentNotional = Math.Abs((double)unwindData.CloseNotionalValue);
+                            }
+                        }
+                        catch { }
+                    }
+                }
+                else
+                {
+                    // 期权：当次平仓名义本金 = 期初名义本金 × 平仓比例(UnwindPercentRate)，取绝对值
+                    var tc = DbContext.trade_cash
+                        .Where(t => t.TradeId == td.id && t.ValidState == ConsGlobal.InValid && !t.IsDeleted)
+                        .OrderByDescending(t => t.id)
+                        .FirstOrDefault();
+                    if (tc != null && tc.UnwindPercentRate.HasValue && td.OriginalStockEqvNotional.HasValue)
+                    {
+                        ctx.CurrentNotional = Math.Abs(td.OriginalStockEqvNotional.Value * tc.UnwindPercentRate.Value);
+                    }
                 }
             }
             return ctx;