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    "coverage": {
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      "availableIndices": 6,
      "missing": [
        "全市场涨跌广度",
        "股票成交额",
        "行业结构",
        "新闻归因"
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    },
    "snapshotDigest": "a48c4728ebaa4542ded6fe496ca02726d01f8eabc7ae3ee6223db8bb2c977053"
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  "headline": "多数指数下跌，大小盘当日表现接近",
  "summary": "当日可确认的是指数表现与风格差异。下一交易日核对分化、指数方向和条件性修复，暂不作新闻归因。",
  "marketState": "declining",
  "metrics": {
    "smallLargeSpreadPp": -0.060011,
    "previousSpreadPp": 1.333802,
    "downCount": 6,
    "upCount": 0,
    "belowMa20Count": 6
  },
  "reasons": [
    {
      "title": "大小盘当日表现接近",
      "text": "中证1000当日-0.51%，沪深300-0.45%，收益差-0.06个百分点；前一交易日差值+1.33个百分点。",
      "evidenceIds": [
        "sh000852",
        "sh000300"
      ],
      "limitation": "两个指数反映不同成分结构；差值本身不能证明资金净流向，也不能代替中证2000。"
    },
    {
      "title": "6个下跌、0个上涨，覆盖六个指数",
      "text": "本期6/6个指数收跌，前一交易日为0/6个；指数成分存在重叠，不把这个比例称为全市场广度。",
      "evidenceIds": [
        "sh000001",
        "sh000300",
        "sh000905",
        "sh000852",
        "sz399006",
        "sh000688"
      ],
      "limitation": "缺少个股涨跌分布与成交额，不能据此判断普遍错杀、恐慌或资金撤离。"
    },
    {
      "title": "6/6个指数低于20日均线",
      "text": "沪深300近5日-1.94%、近20日-2.89%，收盘相对20日均线-2.07%。",
      "evidenceIds": [
        "sh000300"
      ],
      "limitation": "均线描述价格位置，不代表确定支撑、反转时点或上涨概率。"
    }
  ],
  "hypotheses": [
    {
      "hypothesisId": "a-share-2026-09-17-majority-persistence",
      "kind": "majority_persistence",
      "title": "多数指数的方向是否延续",
      "mode": "prospective",
      "registeredAt": "2026-09-17T16:43:03.986038+08:00",
      "targetSession": "2026-09-18",
      "windowStartAt": "2026-09-18T09:30:00+08:00",
      "windowEndAt": "2026-09-18T15:00:00+08:00",
      "condition": {
        "kind": "always"
      },
      "criterion": {
        "direction": -1,
        "minimumCount": 4
      },
      "methodVersion": "a-share-index-review-1.0",
      "explanation": "六个观察指数中，至少四个延续本期涨跌方向为支持，至少四个反方向为反驳，其余为分化；不代表全市场股票广度。",
      "status": "pending",
      "forecastProbability": null
    },
    {
      "hypothesisId": "a-share-2026-09-17-low-open-recovery",
      "kind": "low_open_recovery",
      "title": "沪深300低开后能否收高于开盘",
      "mode": "prospective",
      "registeredAt": "2026-09-17T16:43:03.986038+08:00",
      "targetSession": "2026-09-18",
      "windowStartAt": "2026-09-18T09:30:00+08:00",
      "windowEndAt": "2026-09-18T15:00:00+08:00",
      "condition": {
        "kind": "open_below_previous_close"
      },
      "criterion": {
        "indexId": "sh000300",
        "operator": "close_gt_open"
      },
      "methodVersion": "a-share-index-review-1.0",
      "explanation": "仅当下一交易日沪深300开盘低于本期收盘时检查；收盘高于开盘为支持，低于为反驳，相等为持平。未低开则条件未触发。",
      "status": "pending",
      "forecastProbability": null
    }
  ],
  "causalValidation": "not_established",
  "modelTokenUsage": 0,
  "interpretationMode": "deterministic_index_comparison",
  "coverage": {
    "scope": "six_index_pilot",
    "availableIndices": 6,
    "missing": [
      "全市场涨跌广度",
      "股票成交额",
      "行业结构",
      "新闻归因"
    ]
  },
  "resultStatus": {
    "schemaVersion": 1,
    "resultId": "a-share-review",
    "label": "A股指数复盘试点",
    "transportStatus": "success",
    "dataStatus": "partial",
    "analysisStatus": "ready",
    "actionStatus": "limited",
    "severity": "warning",
    "dataAsOf": "2026-09-17",
    "generatedAt": "2026-09-17T16:43:03.986038+08:00",
    "reasonCodes": [
      "six_index_scope"
    ],
    "reason": "指数事实可用；全市场广度、成交额、行业结构与新闻归因未接入。",
    "dependencies": []
  },
  "reportDigest": "66f4b84d8729f3bba96db13391273f556e8ecd3534a657a8034ffb791d7ad99c"
}