diff --git a/docs/evidence/shared-market-cap-order-index-20260905.json b/docs/evidence/shared-market-cap-order-index-20260905.json
new file mode 100644
index 0000000..f6a7a3b
--- /dev/null
+++ b/docs/evidence/shared-market-cap-order-index-20260905.json
@@ -0,0 +1,93 @@
+{
+  "schemaVersion": "fidc-shared-market-cap-order-index-ab/v1",
+  "measuredAt": "2026-09-05T00:43:00+08:00",
+  "host": "192.168.31.177",
+  "engineCommit": "05953f857a3e3844595bb63a684c34a2e44cbaaf",
+  "serviceCommit": "9fd5a9e6d5668af57f6942fc3c4127953545d9c6",
+  "runnerBinarySha256": "188269bf0c2ee65d6c11ed37ddddfdaf86695941e8123f69f950054bea39796e",
+  "implementation": {
+    "description": "build an immutable per-date u32 symbol-id order by market cap in parallel with DataSet construction and reuse it across strategy runs",
+    "riskEvaluationOrderPreserved": true,
+    "riskDiagnosticsOrderPreserved": true,
+    "selectionOrderPreserved": true,
+    "cachedFactorValues": false,
+    "cachedSelectionResults": false,
+    "cachedAccountOrOrderState": false,
+    "pitSemanticsChanged": false,
+    "adjustmentSemanticsChanged": false
+  },
+  "primaryFiveYearContract": {
+    "startDate": "2021-08-23",
+    "endDate": "2026-08-28",
+    "frequency": "1d",
+    "matchingType": "next_bar_open",
+    "totalReturn": 0.9219861819172002,
+    "tradeCount": 26088,
+    "canonicalSha256": "b42fea66237d06eadb24f6b8c9e2760e7319fe3699f315b99e01f433ef2aa234",
+    "resultStoreSha256": "92343fb369fea68b2544b654151c5c43a935940580b14afbe8eefb3844f72a54",
+    "firstRun": {
+      "runId": "btr_1788540070941_2799354_0",
+      "totalSeconds": 19.825,
+      "dataSeconds": 13.141,
+      "engineSeconds": 6.024
+    },
+    "hotRuns": [
+      {"runId": "btr_1788540095588_2799354_1", "totalSeconds": 6.664, "engineSeconds": 5.528},
+      {"runId": "btr_1788540107127_2799354_2", "totalSeconds": 6.546, "engineSeconds": 5.742},
+      {"runId": "btr_1788540118939_2799354_3", "totalSeconds": 6.586, "engineSeconds": 5.643},
+      {"runId": "btr_1788540129894_2799354_4", "totalSeconds": 6.591, "engineSeconds": 5.929},
+      {"runId": "btr_1788540141992_2799354_5", "totalSeconds": 6.794, "engineSeconds": 6.145}
+    ],
+    "hotMedianEngineSeconds": 5.742,
+    "restoredBaselineHotMedianEngineSeconds": 6.702,
+    "observedMedianImprovementPercent": 14.324082363473588,
+    "terminalAuditStatus": "clean",
+    "resultConsistent": true
+  },
+  "secondaryFiveYearContract": {
+    "description": "same frozen source and execution contract with target positions changed from 30 to 20",
+    "totalReturn": 1.1342962298106998,
+    "tradeCount": 19404,
+    "canonicalSha256": "0dbd3fad624097c673c4a5ec2f545f95e9c21d1d5337bb2b48ffeb22b16cb2b9",
+    "resultStoreSha256": "416d2f87241fb4c6b917f6aeecb588f82f6e7d51a103f4c53a74d11971f16839",
+    "engineSeconds": [5.699, 5.545, 5.604, 5.23],
+    "processHotMedianEngineSeconds": 5.545,
+    "terminalAuditStatus": "clean",
+    "resultConsistent": true
+  },
+  "memory": {
+    "baselineCurrentBytes": 11426254848,
+    "candidateCurrentBytes": 11433934848,
+    "candidatePeakBytes": 11435282432,
+    "observedIncreaseBytes": 7680000
+  },
+  "profile": {
+    "runId": "btr_1788540249539_2799354_10",
+    "totalSeconds": 6.35,
+    "engineSeconds": 5.696,
+    "eventCycles": 15734772698,
+    "stockStatePercent": 23.86,
+    "stableUniverseSortPresentInTopProfile": false,
+    "numericVmPercent": 5.29,
+    "adjustedCloseMovingAveragePercent": 4.71,
+    "mallocPercent": 4.33
+  },
+  "testGate": {
+    "coreUnitTotal": 419,
+    "corePassed": 413,
+    "ignoredManualBenchmarks": 6,
+    "failed": 0,
+    "integrationSuitesPassed": true
+  },
+  "remoteArtifacts": [
+    "/srv/fidc/canonical/run/fidc-private/evidence/shared-market-cap-order-20260905.json",
+    "/srv/fidc/canonical/run/fidc-private/evidence/shared-market-cap-order-secondary-20260905.json",
+    "/srv/fidc/canonical/run/fidc-private/evidence/shared-market-cap-order-profile-20260905/perf.data",
+    "/srv/fidc/canonical/run/fidc-private/evidence/shared-market-cap-order-profile-20260905/perf-report.txt",
+    "/srv/fidc/canonical/run/fidc-private/evidence/shared-market-cap-order-profile-20260905/run.json"
+  ],
+  "acceptance": {
+    "status": "accepted_shared_immutable_index_end_to_end_no_regression",
+    "reason": "both five-year strategies preserve exact business outputs, the primary stable hot median improves by about 14.3 percent, first-build data time remains at the prior process-cold baseline, and resident memory increases by only about 7.7 MB"
+  }
+}