diff --git a/UnitTestProject/Modules/SwapModule/GLMS20260105GoldenTest.cs b/UnitTestProject/Modules/SwapModule/GLMS20260105GoldenTest.cs
index b694f6fa..b70cdb0a 100644
--- a/UnitTestProject/Modules/SwapModule/GLMS20260105GoldenTest.cs
+++ b/UnitTestProject/Modules/SwapModule/GLMS20260105GoldenTest.cs
@@ -58,6 +58,11 @@ namespace YLErp.Modules.SwapModule
                 var keyDates = new[] { swapDate.AddDays(-1), swapDate, swapDate.AddDays(1) };
                 var keyFloatEods = floatEods.Where(x => keyDates.Contains(x.ValueDate)).ToList();
 
+                // 录制 UpdateEodPosition 的输入（互换前日eod + 互换flow_event + 持仓 + 交易）
+                var preSwapEod = floatEods.FirstOrDefault(x => x.ValueDate == swapDate.AddDays(-1));
+                var swapFlowEvents = flows.Where(x => x.EventDate == swapDate && x.PositionId == preSwapEod?.PositionId).ToList();
+                var swapPosition = positions.FirstOrDefault(x => x.id == preSwapEod?.PositionId);
+
                 var golden = new JObject
                 {
                     ["TradeNumber"] = TradeNumber,
@@ -98,6 +103,19 @@ namespace YLErp.Modules.SwapModule
                 }
                 golden["AllFloatEodDividends"] = allArray;
 
+                // 录制回放所需的输入数据（用于重新调 UpdateEodPosition）
+                if (preSwapEod != null && swapPosition != null)
+                {
+                    var settings = new JsonSerializerSettings { ReferenceLoopHandling = ReferenceLoopHandling.Ignore };
+                    golden["ReplayInput"] = new JObject
+                    {
+                        ["Trade"] = JObject.FromObject(td, JsonSerializer.Create(settings)),
+                        ["Position"] = JObject.FromObject(swapPosition, JsonSerializer.Create(settings)),
+                        ["PreSwapEod"] = JObject.FromObject(preSwapEod, JsonSerializer.Create(settings)),
+                        ["SwapFlowEvents"] = JArray.FromObject(swapFlowEvents, JsonSerializer.Create(settings))
+                    };
+                }
+
                 string json = JsonConvert.SerializeObject(golden, Formatting.Indented);
                 string path = Path.Combine(GoldenDir, $"golden_{TradeNumber}.json");
                 File.WriteAllText(path, json);
@@ -131,9 +149,10 @@ namespace YLErp.Modules.SwapModule
         #region 回放：读 golden 验证精度差异
 
         /// <summary>
-        /// 回放 golden，验证互换后 PosiDividendSum 的精度差异。
-        /// 当前代码会失败（差异=0.36），这就是红灯。
-        /// 修复后（cs:1635 改为递增模式）应通过。
+        /// 回放 golden：用真实数据重新调 UpdateEodPosition，验证修复后 PosiDividendSum 正确。
+        ///
+        /// 红灯（修复前）：从头重算产生 0.36 差异
+        /// 绿灯（修复后）：递增模式，PosiDividendSum = 前日 + 新计 - 实现 = -90000
         /// </summary>
         [TestMethod]
         public void Replay_VerifyPrecisionDiff()
@@ -152,41 +171,82 @@ namespace YLErp.Modules.SwapModule
             var json = File.ReadAllText(files[0]);
             var golden = JObject.Parse(json);
 
-            var keyEods = golden["KeyFloatEodPositions"] as JArray;
-            Assert.IsNotNull(keyEods, "KeyFloatEodPositions 缺失");
-            Assert.IsTrue(keyEods.Count >= 2, "应至少有互换前+互换日两条eod");
-
-            var swapDateStr = golden["SwapDate"]?.Value<string>();
-            Console.WriteLine($"SwapDate = {swapDateStr}");
-
-            JObject preSwap = null, swapDay = null;
-            var swapDate = DateTime.Parse(swapDateStr);
-            foreach (var e in keyEods)
+            var replayInput = golden["ReplayInput"];
+            if (replayInput == null)
             {
-                var dateStr = e["ValueDate"]?.Value<string>();
-                if (dateStr == swapDate.AddDays(-1).ToString("yyyy-MM-dd")) preSwap = e as JObject;
-                if (dateStr == swapDateStr) swapDay = e as JObject;
+                Assert.Inconclusive("golden 缺少 ReplayInput（请重新录制）");
+                return;
             }
 
-            Assert.IsNotNull(preSwap, "找不到互换前eod");
-            Assert.IsNotNull(swapDay, "找不到互换日eod");
+            var settings = new JsonSerializerSettings { ReferenceLoopHandling = ReferenceLoopHandling.Ignore };
+            var td = replayInput["Trade"]!.ToObject<trade>(JsonSerializer.Create(settings));
+            var position = replayInput["Position"]!.ToObject<swap_position>(JsonSerializer.Create(settings));
+            var preSwapEod = replayInput["PreSwapEod"]!.ToObject<eod_swap_position>(JsonSerializer.Create(settings));
+            var swapFlowEvents = replayInput["SwapFlowEvents"]!.ToObject<List<swap_flow_event>>(JsonSerializer.Create(settings));
 
-            decimal preDividendSum = preSwap["PosiDividendSum"]!.Value<decimal>();
-            decimal swapCloseDividend = swapDay["TdCloseDividend"]!.Value<decimal>();
-            decimal actualDividendSum = swapDay["PosiDividendSum"]!.Value<decimal>();
-            decimal expectedDividendSum = preDividendSum - swapCloseDividend;
+            var swapDateStr = golden["SwapDate"]!.Value<string>();
+            var swapDate = DateTime.Parse(swapDateStr);
+            Console.WriteLine($"SwapDate = {swapDateStr}");
+            Console.WriteLine($"互换前 PosiDividendSum = {preSwapEod.PosiDividendSum}");
+            Console.WriteLine($"互换 DividendIn = {string.Join(",", swapFlowEvents.Select(x => x.DividendIn))}");
 
-            Console.WriteLine($"互换前 PosiDividendSum  = {preDividendSum}");
-            Console.WriteLine($"互换实现 TdCloseDividend = {swapCloseDividend}");
-            Console.WriteLine($"期望 PosiDividendSum     = {preDividendSum} - ({swapCloseDividend}) = {expectedDividendSum}");
-            Console.WriteLine($"实际 PosiDividendSum     = {actualDividendSum}");
-            Console.WriteLine($"差异                     = {actualDividendSum - expectedDividendSum}");
+            // 用修复后的代码重新调 UpdateEodPosition
+            var service = new ReplayStubService(preSwapEod.UnderlyingCode);
+            var result = service.ExecuteUpdateEodPosition(
+                position, preSwapEod, td, swapDate, swapDate.AddDays(-1), swapFlowEvents);
 
-            // 核心断言：互换后 PosiDividendSum 应精确 = 前日 - 实现
-            // 当前代码会失败（差异=0.36），这就是红灯
-            Assert.AreEqual(expectedDividendSum, actualDividendSum,
-                $"互换后 PosiDividendSum 应精确={expectedDividendSum}，实际={actualDividendSum}，" +
-                $"差异={actualDividendSum - expectedDividendSum}（从头重算 vs 递增的舍入累积）");
+            // 期望：PosiDividendSum = 前日 + 当天新计 - 实现
+            decimal expected = preSwapEod.PosiDividendSum + result.TdPosiDividend - result.TdCloseDividend;
+            Console.WriteLine($"\n修复后结果:");
+            Console.WriteLine($"  TdPosiDividend = {result.TdPosiDividend}");
+            Console.WriteLine($"  TdCloseDividend = {result.TdCloseDividend}");
+            Console.WriteLine($"  PosiDividendSum = {result.PosiDividendSum}");
+            Console.WriteLine($"  期望 = {preSwapEod.PosiDividendSum} + {result.TdPosiDividend} - ({result.TdCloseDividend}) = {expected}");
+
+            Assert.AreEqual(expected, result.PosiDividendSum,
+                $"修复后 PosiDividendSum 应=前日+新计-实现={expected}，实际={result.PosiDividendSum}");
+            Console.WriteLine($"\n✅ 修复验证通过：PosiDividendSum={result.PosiDividendSum} = {expected}");
+        }
+
+        #endregion
+
+        #region 回放用 Stub
+
+        private sealed class ReplayStubService : SwapEodPositionService
+        {
+            private readonly string _underlyingCode;
+            public ReplayStubService(string underlyingCode) : base(new OptUserInfo(0, "Replay", OptUserFrom.UnitTest))
+            {
+                _underlyingCode = underlyingCode;
+            }
+
+            protected override underlying_manager GetUnderlyingData(string underlyingCode)
+            {
+                // 返回最小可用数据（增值税=0）
+                return new underlying_manager { ValueAddedTax = 0m };
+            }
+
+            protected override decimal GetUnderlyingPrice(string code, DateTime settleDate, out decimal vobp)
+            {
+                vobp = 0m;
+                return 1.01m; // 固定价格
+            }
+
+            protected override decimal CalcBondPayment(string underlyingCode, DateTime fromDate, DateTime toDate, decimal qty, int shortRatio, int directionRatio)
+            {
+                // 返回0：互换日的 TdPosiDividend=0（无新增分红），聚焦验证 PosiDividendSum 的递增逻辑
+                return 0m;
+            }
+
+            protected override void SaveAllChanges() { }
+            protected override double GetCurrencyRate(string q, string s, DateTime d, bool p, CurrencyRateType t) => 1.0;
+
+            public eod_swap_position ExecuteUpdateEodPosition(
+                swap_position swapPosition, eod_swap_position eod, trade td,
+                DateTime valueDate, DateTime preSettleDate, List<swap_flow_event> unwindEvents)
+            {
+                return UpdateEodPosition(swapPosition, eod, null, td, valueDate, preSettleDate, unwindEvents);
+            }
         }
 
         #endregion
diff --git a/UnitTestProject/Resources/GoldenFiles/GLMS20260105/golden_GLMS-20260105-0007.json b/UnitTestProject/Resources/GoldenFiles/GLMS20260105/golden_GLMS-20260105-0007.json
index cc5d8ee7..c617a192 100644
--- a/UnitTestProject/Resources/GoldenFiles/GLMS20260105/golden_GLMS-20260105-0007.json
+++ b/UnitTestProject/Resources/GoldenFiles/GLMS20260105/golden_GLMS-20260105-0007.json
@@ -390,5 +390,891 @@
       "TdPosiDividend": 0.0,
       "RealizedDividend": -400.000000
     }
-  ]
+  ],
+  "ReplayInput": {
+    "Trade": {
+      "SubTrades": null,
+      "YesterDayTradeSavedVol": null,
+      "PV": null,
+      "RealizedPnl": null,
+      "PositionPnl": null,
+      "MaturityWorkDay": 124,
+      "PairTradeNumber": null,
+      "ShowNotional": -50000000.0,
+      "MaturityDay": 182,
+      "TradeOpenVolatilityString": "0.00%",
+      "InitialSpotPriceOriginal": null,
+      "TradeOriginalAmount": null,
+      "ExerciseDateString": "2026-12-31",
+      "ActualStrike": null,
+      "StrikeString": "0.000000000",
+      "TradeSinglePriceString": "0.00%",
+      "TradeDateString": "2026-01-05",
+      "LotsNewInfo": null,
+      "UnWindPrice": null,
+      "StockEqvNotionalToShow": 50500000.0,
+      "SettlementTypeDesc": "收盘价",
+      "SettlementDesc": null,
+      "VarietyId": null,
+      "SyntheticUnderlyingTipsInfo": null,
+      "StrikeToShow": "0.000000000",
+      "CurNotional": 0.0,
+      "LastDayNotional": 0.0,
+      "Amount": null,
+      "ContractCode": null,
+      "InitialMarginRatio": null,
+      "UnderlyingPrice": null,
+      "UnderlyingName": null,
+      "DeltaInLots": null,
+      "ValueStatus": null,
+      "UnWindUnderlyingPrice": null,
+      "UnWindTradePrice": null,
+      "UnWindTotalAmount": null,
+      "UnWindFee": null,
+      "UnWindTimes": 0,
+      "KnockInOutStatusObservation": null,
+      "DividendRatio": 0.0,
+      "InitYtm": 0.025000,
+      "CalcId": null,
+      "TTMDays": null,
+      "UnderlyingInstrumentTypeCn": "利率债",
+      "ExerciseModeCn": "",
+      "ClientNumber": null,
+      "SummaryType": "收益互换",
+      "QuoteUnitSingle": null,
+      "QuoteUnit": null,
+      "trade_forward": {
+        "id": 0,
+        "TradeId": 0,
+        "OpenCommission": 0.0,
+        "AnnualMarginRate": 0.0,
+        "AnnualStoragePrice": 0.0,
+        "ForwardValue": 0.0,
+        "ObservationStart": null,
+        "ObservationDates": null,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_asian_option": {
+        "StrikeType": null,
+        "PayoffType": null,
+        "SettleMode": null,
+        "StrikeGearingFactor": 1.0,
+        "AveragingPeriodStartDate": null,
+        "ObservationDates": null,
+        "EnhancedPrice": 0.0,
+        "StrikeTypeCn": "",
+        "PayoffTypeCn": "",
+        "Fixings": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_rainbow_option": {
+        "UnderlyingAssetCode": null,
+        "Strike": null,
+        "UnderlyingMaturityDate": null,
+        "UnderlyingId1": null,
+        "UnderlyingId2": null,
+        "Strike2": null,
+        "SpotPrice1": null,
+        "SpotPrice2": null,
+        "RainbowType": null,
+        "UnderlyingAssetCode2": null,
+        "CorRelation": null,
+        "CashAmount": null,
+        "Vol2": 0.0,
+        "UnderlyingCodes": [
+          null,
+          null
+        ],
+        "Strikes": [
+          0.0,
+          0.0
+        ],
+        "SpotPrices": [
+          0.0,
+          0.0
+        ],
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_barrier_option": {
+        "KnockInOutStatus": null,
+        "KnockInOutStatusCn": "观察中",
+        "KnockInOutDate": null,
+        "KnockInOutNotional": null,
+        "BarrierShift": null,
+        "BarrierTypeEn": null,
+        "IsDiscrete": false,
+        "BarrierPrice": null,
+        "UpperBarrierPrice": null,
+        "Discrete": null,
+        "BarrierType": null,
+        "Rebate": null,
+        "RebateRate": null,
+        "RebateHigh": null,
+        "RebateHighRate": null,
+        "RebateAnnualizedAtKO": false,
+        "RebateDayCount": null,
+        "ObservationDates": null,
+        "LatestObservationDate": null,
+        "RebateType": null,
+        "RebateTypeCn": "",
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_risky_option": {
+        "Strike1": null,
+        "Strike2": null,
+        "Strike3": null,
+        "ParticipationRate1": null,
+        "ParticipationRate2": null,
+        "ParticipationRate3": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_binary_option": {
+        "RebateType": null,
+        "RebateTypeCn": "",
+        "CashOrNothingAmount": null,
+        "CashOrNothingAmountHigh": null,
+        "CashOrNothingAmountRate": null,
+        "CashOrNothingAmountHighRate": null,
+        "PayoffType": "",
+        "UpperBarrier": null,
+        "RebateDayCount": null,
+        "RebateAnnualizedAtKO": false,
+        "ObservationDates": null,
+        "LatestObservationDate": null,
+        "UpperBarrierRelative": "0",
+        "MonitorType": null,
+        "IsDiscreteMonitored": false,
+        "Offset": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_spread_option": {
+        "UnderlyingMaturityDate2": null,
+        "UnderlyingMaturityDate3": null,
+        "UnderlyingMaturityDate4": null,
+        "Payoff": "S1-S2",
+        "UnderlyingId1": null,
+        "UnderlyingId2": null,
+        "UnderlyingId3": null,
+        "UnderlyingId4": null,
+        "UnderlyingAssetClass1": null,
+        "UnderlyingAssetClass2": null,
+        "UnderlyingAssetClass3": null,
+        "UnderlyingAssetClass4": null,
+        "UnderlyingAssetCode1": null,
+        "UnderlyingAssetCode2": null,
+        "UnderlyingAssetCode3": null,
+        "UnderlyingAssetCode4": null,
+        "UnderlyingAssetName1": null,
+        "UnderlyingAssetName2": null,
+        "UnderlyingAssetName3": null,
+        "UnderlyingAssetName4": null,
+        "TradeCloseVolatility1": null,
+        "TradeCloseVolatility2": null,
+        "TradeCloseVolatility3": null,
+        "TradeCloseVolatility4": null,
+        "TradeOpenVolatility1": null,
+        "TradeOpenVolatility2": null,
+        "TradeOpenVolatility3": null,
+        "TradeOpenVolatility4": null,
+        "NumOfSmoothingDays1": null,
+        "NumOfSmoothingDays2": null,
+        "NumOfSmoothingDays3": null,
+        "NumOfSmoothingDays4": null,
+        "Vol1": null,
+        "Vol2": null,
+        "Vol3": null,
+        "Vol4": null,
+        "Correlation12": null,
+        "Correlation13": null,
+        "Correlation14": null,
+        "Correlation23": null,
+        "Correlation24": null,
+        "Correlation34": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_double_sharkfin_option": {
+        "KnockInOutStatus": null,
+        "KnockInOutStatusCn": "观察中",
+        "KnockInOutDate": null,
+        "IsDiscrete": false,
+        "BarrierHigh": 0.0,
+        "BarrierLow": 0.0,
+        "StrikeHigh": null,
+        "StrikeLow": null,
+        "CallParticipationRate": null,
+        "PutParticipationRate": null,
+        "Discrete": null,
+        "Rebate": null,
+        "RebateRate": null,
+        "RebateHigh": null,
+        "RebateHighRate": null,
+        "RebateType": null,
+        "ObservationDates": null,
+        "LatestObservationDate": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_autocall": {
+        "KnockInOutStatus": null,
+        "KnockInOutStatusCn": "观察中",
+        "KnockInOutDate": null,
+        "KOBarrier": 0.0,
+        "KIBarrier": 0.0,
+        "CouponBarrier": 0.0,
+        "Coupon": 0.0,
+        "IsFixedCoupon": false,
+        "CouponPayType": 0,
+        "SpreadStrike1": null,
+        "SpreadStrike": null,
+        "CouponPayAtMaturity": false,
+        "IncludeCouponAfterKI": false,
+        "KOObservationDates": null,
+        "CouponObservation": null,
+        "LatestKOObservationDate": null,
+        "LatestKOBarrier": null,
+        "ObservationDates": null,
+        "LatestObservationDate": null,
+        "IsAnnualized2": false,
+        "AnnualizeFactor2": null,
+        "CouponDayCount": "Act365",
+        "HappenedObservations": null,
+        "KIPayoffType": 0,
+        "CouponIncludeStartDate": null,
+        "CouponUsePaymentDate": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_snowball": {
+        "IsInitialKnockedIn": false,
+        "KnockInOutStatus": null,
+        "KnockInOutStatusCn": "观察中",
+        "KnockInOutDate": null,
+        "KOBarrier": 0.0,
+        "KIBarrier": 0.0,
+        "Coupon": 0.0,
+        "KOObservationDates": null,
+        "KOObservationSettleDates": null,
+        "LatestKOObservationDate": null,
+        "LatestKOBarrier": null,
+        "ObservationDates": null,
+        "LatestObservationDate": null,
+        "KORebate": 0.0,
+        "KORebateType": 0,
+        "IsFixedCoupon": false,
+        "SpreadStrikeAtKO": null,
+        "SpreadStrikeAtKO1": null,
+        "SpreadStrikeAtMaturity1": null,
+        "SpreadStrikeAtMaturity": null,
+        "KOPayoffType": 0,
+        "KIPayoffType": 0,
+        "AnnualizedPremiumRate": null,
+        "IsAnnualized2": false,
+        "AnnualizeFactor2": null,
+        "InitialAdvance": null,
+        "PeriodAdvance": null,
+        "FontEarning": null,
+        "ConfirmedLine": null,
+        "ConfirmedFloor": null,
+        "CouponDayCount": null,
+        "PrepaymentUsed": false,
+        "PrepaymentRatio": null,
+        "PrepaymentInterestRate": null,
+        "PrepaymentConvertCashRate": null,
+        "CouponIncludeEndDate": null,
+        "EnhancedParticipationRate": null,
+        "KIParticipationRate": null,
+        "PrincipalProtectionRate": null,
+        "KIObservationType": 0,
+        "KOBarrierAdjustStep": 0.0,
+        "CouponIncludeStartDate": null,
+        "CouponUsePaymentDate": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_rangeaccrual": {
+        "LowerRange": 0.0,
+        "UpperRange": 0.0,
+        "BonusRate": 0.0,
+        "ObservationDates": null,
+        "LatestObservationDate": null,
+        "HappenedObservations": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_airbag": {
+        "KnockInOutStatus": null,
+        "KnockInOutStatusCn": "观察中",
+        "KnockInOutDate": null,
+        "KnockInOutNotional": null,
+        "HighStrike": 0.0,
+        "HasPayoffLimit": false,
+        "Barrier": 0.0,
+        "KIParticipationRate": 0.0,
+        "NotKIParticipationRate": null,
+        "IsDiscreteMonitored": false,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_accumulator_option": {
+        "KOBarrier": null,
+        "KOObservationDates": null,
+        "KOObservationSettleDates": null,
+        "AccumuTradeAmount": 0.0,
+        "OriginalAccumuTradeAmount": 0.0,
+        "AccumuType": "",
+        "PayoffType": null,
+        "Coupon": 0.0,
+        "CouponPercent": false,
+        "IsFixedCoupon": false,
+        "CouponDayCount": null,
+        "PutMultiplier": 1.0,
+        "CallMultiplier": 1.0,
+        "EarlyTerminate": false,
+        "SettlementMode": null,
+        "SettlementMode2": null,
+        "SettlementMode3": null,
+        "KnockOutDate": null,
+        "ForwardDateType": null,
+        "ForwardPriceType": null,
+        "AccumulatorStructureType": 0,
+        "Coupon2": null,
+        "Strike2": null,
+        "Strike3": null,
+        "Multiplier": null,
+        "Multiplier2": null,
+        "Multiplier3": null,
+        "KnockInOutStatusCn": "观察中",
+        "LatestObservationDate": null,
+        "StrikeGearingFactor": 1.0,
+        "LatestKOBarrier": null,
+        "latestCoupon": null,
+        "ForwardPriceType2": null,
+        "ForwardDateType2": null,
+        "ForwardPriceType3": null,
+        "ForwardDateType3": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_swap": {
+        "AnnualDays": null,
+        "IsGetFloatingProfit": false,
+        "GetVarietyId": null,
+        "GetUnderlyingId": null,
+        "GetUnderlyingCode": null,
+        "GetLongShort": null,
+        "GetSpotPrice": null,
+        "GetOpenPrice": null,
+        "GetTradePrice": null,
+        "GetSwapTimeAndRate": null,
+        "GetSwapRate": 0.0,
+        "GetFixedProfit": null,
+        "GetSingleFee": null,
+        "GetUnAnnualRate": null,
+        "GetMarginRate": 0.0,
+        "GetFinalPrice": null,
+        "GetNotional": null,
+        "GetTradeAmount": null,
+        "GetLot": null,
+        "IsPayFloatingProfit": false,
+        "PayVarietyId": null,
+        "PayUnderlyingId": null,
+        "PayUnderlyingCode": null,
+        "PayLongShort": null,
+        "PaySpotPrice": null,
+        "PayOpenPrice": null,
+        "PayTradePrice": null,
+        "PaySwapTimeAndRate": null,
+        "PaySwapRate": 0.0,
+        "PayFixedProfit": null,
+        "PaySingleFee": null,
+        "RateCalcMode": "11",
+        "IncludeFirstDay": true,
+        "PayUnAnnualRate": null,
+        "PayMarginRate": 0.0,
+        "PayFinalPrice": null,
+        "PayNotional": null,
+        "PayTradeAmount": null,
+        "PayLot": null,
+        "FlowId": null,
+        "AnnualVarIncome": false,
+        "SwapType": null,
+        "SettlementPayType": 0,
+        "IsTradePriceWhenOpen": false,
+        "IsShare": false,
+        "OriginalTradeId": null,
+        "GetCountRatio": 0.0,
+        "PayCountRatio": 0.0,
+        "GetContractSize": 0.0,
+        "PayContractSize": 0.0,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "get_trade_swap_details": [],
+      "pay_trade_swap_details": [],
+      "trade_underlying_enhance": {
+        "AnnualizedEnhanceRate": 0.0,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_cashflow": {
+        "ProfitRate": 0.0,
+        "RateType": 0,
+        "DepositType": 0,
+        "PrepayRatio": 0.0,
+        "ProfitDayCount": "Act365",
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_custom": {
+        "ObservationDates": null,
+        "LatestObservationDate": null,
+        "id": 0,
+        "TradeId": 0,
+        "OptId": null,
+        "OptName": null,
+        "OptDate": null,
+        "EncryptId": "93JNozbumCxdv7dwztjpOg"
+      },
+      "trade_extend": {
+        "TradeId": 0,
+        "ExtendJson": null,
+        "CompanyJson": null,
+        "ExtendObj": {
+          "FlowBookMode": 0,
+          "FloatingPnlAnnualized": false,
+          "NeedOpenFee": false,
+          "OpenFeeType": 0,
+          "AnnualDays": 365,
+          "InterestCalcMode": "11",
+          "Direction": 0,
+          "SettlementRules": 0,
+          "DividendPayDate": 1
+        }
+      },
+      "swap_positions": [],
+      "inital_eod_swap_positions": [],
+      "eod_swap_positions": [],
+      "trade_Initial_Margin": {
+        "TradeId": 0,
+        "Direction": 1,
+        "MarginType": 0,
+        "MarginValue": 0.0
+      },
+      "swap_Flow_Events": [],
+      "swap_Events": [],
+      "eod_swaps": [],
+      "ClientCashInCashOutList": [],
+      "SalesCommission": null,
+      "trade_cash": null,
+      "RemarkInfo": "到期付息（手动付息后次日部分平仓）",
+      "eod_trade": null,
+      "SettlementAmount": null,
+      "ActualExerciseDate": null,
+      "trade_swap_gj": {
+        "LongShort": null,
+        "OpenPrice": null,
+        "OpenCurrencyRate": null,
+        "TradeCommission": null,
+        "PricingOriginalStockEqvNotional": null,
+        "PricingStockEqvNotional": null,
+        "SwapTimeAndRate": null
+      },
+      "Tags": null,
+      "OutputTags": null,
+      "SaveExt": null,
+      "TradeType": "收益互换",
+      "TradeSavedVol": null,
+      "CreatorId": null,
+      "CreatorName": null,
+      "CreateDate": "2026-07-01T20:58:14",
+      "PairTrade": "",
+      "TradeSinglePrice": null,
+      "GroupId": null,
+      "GroupName": "",
+      "NumOfSmoothingDays": null,
+      "ParentTradeId": 0,
+      "TradeCloseVolatility": null,
+      "TradeOpenVolatility": null,
+      "UnWindDate": "2026-03-03T00:00:00",
+      "UnWindNotional": null,
+      "CheckStatus": 0,
+      "CheckTradeUpdate": 1,
+      "InitialSpotPrice": 1.000004,
+      "IsMoneynessOption": null,
+      "TradeAmount": 50000000.0,
+      "TradeUnit": "",
+      "StockEqvNotional": 50500000.0,
+      "StockEqvNotionalMax": null,
+      "StockEqvNotionalReal": 50500000.0,
+      "VolType": null,
+      "UnderlyingInstrumentType": "TBonds",
+      "ExerciseDate": "2026-12-31T00:00:00",
+      "TraderName": "唐善洁",
+      "TraderId": 164,
+      "Vol": null,
+      "Day1Pnl": null,
+      "MidVol": null,
+      "ExchangeRate": null,
+      "Strike": null,
+      "UnderlyingId": 140677,
+      "BasisUnderlyingId": null,
+      "BasisUnderlyingCode": null,
+      "BasisGap": null,
+      "ExchangeOptionCode": null,
+      "AssetBookName": "测试簿记",
+      "AssetId": 40,
+      "Notional": 50000000.0,
+      "OptionType": null,
+      "PricingModel": null,
+      "ExerciseMode": null,
+      "NoRiskRate": null,
+      "SpotPrice": 1.000004,
+      "TradeNumber": "GLMS-20260105-0007",
+      "ClientId": 43,
+      "ClientName": "善洁测试用产品二号",
+      "UnderlyingCode": "230004.IB",
+      "UnderlyingAssetClass": "其他市场债券",
+      "TradeDate": "2026-01-05T00:00:00",
+      "BuySell": "卖出",
+      "StartDate": "2026-01-05T00:00:00",
+      "MaturityDate": null,
+      "ObservationDateStr": null,
+      "TradePrice": 0.0,
+      "AccurateTradePrice": null,
+      "TradeStatus": "确认成交",
+      "ProcessStatus": "通过审批",
+      "ProcessOrderId": -2,
+      "ProcessOrderBranch": 0,
+      "ProcessOptDate": "2026-07-01T23:36:20",
+      "SettlementType": 0,
+      "ValidState": "Valid",
+      "Comments": "到期付息（手动付息后次日部分平仓）",
+      "SentMailCount": null,
+      "Lots": null,
+      "HasPartialUnWind": 1,
+      "OriginalNotional": 0.0,
+      "TradeSource": "系统交易",
+      "OriginalStockEqvNotional": 50500000.0,
+      "OriginalStockEqvNotionalV2": 50500000.0,
+      "IsUsePremiumRate": true,
+      "IsTradePricePayType": true,
+      "IsAnnualized": false,
+      "AnnualizeFactor": null,
+      "DividendRate": null,
+      "ParticipationRate": 1.0,
+      "PrincipalRate": null,
+      "OriginalPrincipalSum": null,
+      "PrincipalRateWrite": null,
+      "SinglePrincipalWrite": null,
+      "SettlementDate": null,
+      "SettlementFlag": 0,
+      "SettlementFlagStr": "否",
+      "SettlementFlagDate": null,
+      "SettlementFlagOptId": null,
+      "SettlementFlagOptName": null,
+      "CalcFlag": 0,
+      "IsSingleContract": null,
+      "PremiumPayDate": null,
+      "PremiumRate": null,
+      "UnderlyingAssetName": "23附息国债04",
+      "UnderlyingVariety": null,
+      "ContractVersion": null,
+      "FinalPrice": null,
+      "OpponentRole": "乙方",
+      "DurationDays": null,
+      "StructureType": "普通债券类收益互换",
+      "InitialMargin": 0.0,
+      "StructureIntroduction": null,
+      "MarginTemplateName": "系统默认",
+      "MarginType": 0,
+      "MarginRate": 0.0,
+      "PositionMarginRate": 0.0,
+      "QuoteCurrency": null,
+      "SettlementCurrency": null,
+      "IsGroup": 0,
+      "ExtendInfo": null,
+      "IsNight": false,
+      "Propertys": [],
+      "ExtendOptionTypeInfo": null,
+      "AccumulatorOptionId": null,
+      "OptId": 164,
+      "OptName": "唐善洁",
+      "OptDate": "2026-07-01T23:36:20",
+      "IsApproval": false,
+      "IsAutoGenerate": null,
+      "HTStatus": null,
+      "Warning": false,
+      "DividendDate": "2000-01-01T00:00:00",
+      "CountRatio": 1,
+      "CallPut": "",
+      "IsMoneynessOptionData": false,
+      "MetaDic": {},
+      "TradeExtendJson": null,
+      "TradeMultipleType": "收益互换",
+      "Fixing": null,
+      "id": 1924,
+      "EncryptId": "LKPDwn1OC-Vzkg-aD-cnDA"
+    },
+    "Position": {
+      "PositionId": 0,
+      "SwapTradeId": 1924,
+      "PosiDirection": 2,
+      "PositionType": 1,
+      "UnderlyingCode": "230004.IB",
+      "underlying": null,
+      "CountRatio": 1.000000,
+      "ContractSize": 1.000000,
+      "PosiNetPrice": 1.01000400000,
+      "PosiGrossPrice": 1.01000000000,
+      "PosiNetFeePrice": 1.00000400000,
+      "PosiNetNoFeePrice": 1.00000000000,
+      "PosiNotionalValue": 50500000.000000,
+      "PosiQuantity": 50000000.000000,
+      "PosiTradingFee": 0.0,
+      "PosiTradingFeeUnit": 0.0,
+      "PosiStartDate": "2026-01-05T00:00:00",
+      "PosiMatuirityDate": "2026-12-31T00:00:00",
+      "PosiDividendIncome": 0.0,
+      "PosiTradingFeePending": 200.000000,
+      "InterestDirection": 0,
+      "InterestRateDefault": 0.0,
+      "FloatRate": 0.0,
+      "FloatRateUnderlyingCode": null,
+      "InterestMode": 0,
+      "InterestModeStr": "Unknown",
+      "InterestType": 0,
+      "InterestPrincipalFix": 0.0,
+      "InterestSwapInterval": null,
+      "InterestFeePending": 0.0,
+      "InterestAmount": 0.0,
+      "IsInitial": true,
+      "IsAnnualized": false,
+      "HappenDate": null,
+      "Currency": "CNY",
+      "PosiNumber": "GLMS-20260105-0007-35148",
+      "UnderlyingInstrumentType": "TBonds",
+      "InitYtm": 0.025000,
+      "Invalid": false,
+      "interest_rest_days": 7,
+      "interest_rule": null,
+      "SwapIntervalList": [],
+      "Obervation": null,
+      "PositionIdPadding": "00000000",
+      "id": 35148,
+      "EncryptId": "bwG1iqm2wVDuqrh3JW4jCg",
+      "OptId": 164,
+      "OptName": "唐善洁",
+      "OptTime": "2026-07-01T21:20:32"
+    },
+    "PreSwapEod": {
+      "ValueDate": "2026-03-02T00:00:00",
+      "ClientId": 43,
+      "SwapTradeId": 1924,
+      "PositionId": 35148,
+      "PosiDirection": 2,
+      "PosiDirectionStr": "支付",
+      "PositionType": 1,
+      "PositionTypeStr": "B",
+      "UnderlyingCode": "230004.IB",
+      "UnderlyingName": null,
+      "ContractSize": 1.000000,
+      "CountRatio": 1.000000,
+      "PosiNetPrice": 1.01000400000,
+      "PosiGrossPrice": 1.01000000000,
+      "PosiQuantity": 50000000.000000,
+      "PosiNotionalValue": 50500000.000000,
+      "PosiTradingFee": 0.0,
+      "PosiStartDate": "2026-01-05T00:00:00",
+      "PosiMatuirityDate": "2026-12-31T00:00:00",
+      "UnderlyingPrice": 1.02000000000,
+      "UnderlyingMarketValue": 51000000.000000,
+      "TdPosiDividend": -90400.000000,
+      "PosiMtmPnL": -500000.000000,
+      "PosiDividendSum": -90400.000000,
+      "PosiFeePending": 200.000000,
+      "PosiProfitSum": -590200.000000,
+      "InterestDirection": 0,
+      "InterestMode": 0,
+      "InterestType": 0,
+      "InterestPrincipalFix": 0.0,
+      "InterestRateDefault": 0.0,
+      "InterestSwapInterval": null,
+      "InterestFeePending": 0.0,
+      "TdInterestPrincipal": 0.0,
+      "TdInterestRate": 0.0,
+      "TdInterestIncome": 0.0,
+      "TdInterestFee": 0.0,
+      "InterestIncomeSum": 0.0,
+      "InterestFeeSum": 0.0,
+      "InterestProfitSum": 0.0,
+      "SwapPositionValue": -590200.000000,
+      "TdCloseQty": 0.0,
+      "TdChangedQty": 0.0,
+      "TdCloseMtmPnl": 0.0,
+      "TdCloseDividend": 0.0,
+      "TdCloseFee": 0.0,
+      "TdCloseInterest": 0.0,
+      "TdCloseInterestFee": 0.0,
+      "RealizedMtmPnL": 0.0,
+      "RealizedDividend": 0.0,
+      "RealizedFee": 0.0,
+      "RealizedInterest": 0.0,
+      "RealizedInterestFee": 0.0,
+      "RealizedPnl": 0.0,
+      "TdCurrency": 1.000000,
+      "PosiStatus": 0,
+      "Invalid": false,
+      "FloatRate": 0.0,
+      "FloatRateUnderlyingCode": null,
+      "IsAnnualized": false,
+      "HappenDate": null,
+      "Currency": null,
+      "UnderlyingInstrumentType": "TBonds",
+      "PosiNetFeePrice": 1.00000400000,
+      "PosiNetNoFeePrice": 1.00000000000,
+      "VTradingFee": 400.000000,
+      "interest_rest_days": null,
+      "interest_rule": null,
+      "dv01": 0.0,
+      "PositionIdPadding": "00035148",
+      "id": 403417,
+      "EncryptId": "2LJcLhCf_19_0FHneAgs2Q",
+      "OptId": 164,
+      "OptName": "唐善洁",
+      "OptTime": "2026-07-02T00:17:55"
+    },
+    "SwapFlowEvents": [
+      {
+        "EventDate": "2026-03-03T00:00:00",
+        "SwapTradeId": 1924,
+        "SwapTradeNo": null,
+        "SwapPositionIdPadding": "00035148",
+        "EventType": 3,
+        "EventTypeStr": "互换",
+        "EventReason": "交易",
+        "PayDirection": 2,
+        "PayDirectionStr": "支付",
+        "PositionType": 1,
+        "PositionTypeStr": "B",
+        "UnderlyingCode": "230004.IB",
+        "MatuirityDate": null,
+        "Quantity": 0.0,
+        "PositionQty": 0.0,
+        "CountRatio": 0.0,
+        "ContractSize": 1.000000,
+        "PosiNetPrice": 0.0,
+        "PosiGrossPrice": 0.0,
+        "TradingAmount": 51005202.000000,
+        "TradingAmountAvg": 1.01000400000,
+        "TradingAmountFeeAvg": 1.01000400000,
+        "TradingFee": 0.0,
+        "TradingFeePending": 0.0,
+        "DividendPending": 0.0,
+        "MarkClosePnl": 0.0,
+        "DividendIn": -400.000000,
+        "CloseFee": 0.0,
+        "BeforeCloseFee": 0.0,
+        "PositionId": 35148,
+        "DataState": 100,
+        "ClientCashId": 0,
+        "InterestDirection": 0,
+        "InterestDirectionStr": "",
+        "InterestMode": 0,
+        "UnderlyingInstrumentType": "TBonds",
+        "InterestModeStr": "",
+        "InterestPrincipal": 0.0,
+        "InterestRate": 0.0,
+        "InterestSwapInterval": null,
+        "InterestAmount": 0.0,
+        "TdInterestAmount": 0.0,
+        "InterestFee": 0.0,
+        "InterestClosePnL": 0.0,
+        "EventId": 20929,
+        "ClientId": 43,
+        "FloatRate": null,
+        "PayDate": "2026-03-03T00:00:00",
+        "TradingAmountNetFeeAvg": 1.00000400000,
+        "TradingAmountNetAvg": 1.00000000000,
+        "UnwindDate": "2026-03-03T00:00:00",
+        "OptLog": null,
+        "SwapIntervalList": [],
+        "FloatPnlSum": -400.000000,
+        "InitYtm": null,
+        "id": 16219,
+        "EncryptId": "63o4MwWpLrn3ImiMTmCuXQ",
+        "OptId": 0,
+        "OptName": null,
+        "OptTime": "0001-01-01T00:00:00"
+      }
+    ]
+  }
 }
\ No newline at end of file
diff --git a/YLErpDAL/Modules/SwapModule/SwapEodPositionService.cs b/YLErpDAL/Modules/SwapModule/SwapEodPositionService.cs
index e2864304..454b5a5c 100644
--- a/YLErpDAL/Modules/SwapModule/SwapEodPositionService.cs
+++ b/YLErpDAL/Modules/SwapModule/SwapEodPositionService.cs
@@ -1624,15 +1624,11 @@ namespace YLErp.Modules.SwapModule
 
             curretEod.RealizedDividend = curretEod.RealizedDividend + curretEod.TdCloseDividend;
 
-            // 分红与互换解耦：持仓>0时从起始日重算待实现分红，不再受互换事件影响
-            // 修改，互换事件会影响待实现的分红的，现在要算上
+            // 分红与互换解耦：持仓>0时待实现分红用递增模式（前日+当天新计-当天实现），
+            // 与 CopyEodPosition 的逐天递增口径一致，避免从头重算的舍入累积差异。
             if (curretEod.PosiQuantity > 0)
             {
-                //decimal tax = um.ValueAddedTax ?? 0;
-                //BondPaymentService bondPaymentService = new BondPaymentService(UserInfo);
-                //decimal totalPayment = bondPaymentService.CalcPayment(curretEod.UnderlyingCode, td.StartDate.Value, valueDate, (decimal)originNotional, shortRatio, directionRatio);
-                //var totalInterest = totalPayment / (1 + tax) * (1 - tax);
-                curretEod.PosiDividendSum = Math.Round(totalInterest,2) - curretEod.RealizedDividend;               
+                curretEod.PosiDividendSum = eod.PosiDividendSum + curretEod.TdPosiDividend - curretEod.TdCloseDividend;
             }
             else
             {