{
  "OP510500_SH": {
    "rows": 116524,
    "first": "20220919",
    "last": "20260930",
    "adjusted_name_rows": 45762,
    "contracts_with_multiple_strikes": 0
  },
  "example": {
    "code": "10006203.SH",
    "first": {
      "trade_date": "20231026",
      "exercise_price": 4.724,
      "name": "500ETF购6月4724A"
    },
    "rows_before_adjustment": 134,
    "official_old_strike": 4.8,
    "official_new_strike": 4.724,
    "effective_date": "20240517",
    "source": "https://www.sse.com.cn/assortment/options/disclo/update/c/c_20240516_10756086.shtml"
  },
  "OP510300_SH": {
    "rows": 118040,
    "first": "20220919",
    "last": "20260930",
    "adjusted_name_rows": 43072,
    "contracts_with_multiple_strikes": 0
  },
  "OP159915_SZ": {
    "rows": 127332,
    "first": "20220919",
    "last": "20260930",
    "adjusted_name_rows": 0,
    "contracts_with_multiple_strikes": 0
  },
  "pmi_structure_nonnull": {
    "manufacturing": 0,
    "production": 0,
    "new_orders": 0,
    "employment": 0,
    "services": 0
  },
  "cross_asset_history": {
    "ES": {
      "rows": 20,
      "first": "2026-09-04",
      "last": "2026-10-02"
    },
    "ZN": {
      "rows": 20,
      "first": "2026-09-04",
      "last": "2026-10-02"
    },
    "EUR": {
      "rows": 20,
      "first": "2026-09-04",
      "last": "2026-10-02"
    },
    "GC": {
      "rows": 20,
      "first": "2026-09-04",
      "last": "2026-10-02"
    },
    "CL": {
      "rows": 20,
      "first": "2026-09-04",
      "last": "2026-10-02"
    },
    "JPY": {
      "rows": 20,
      "first": "2026-09-04",
      "last": "2026-10-02"
    }
  },
  "limitations": [
    "Daily rate/options data do not have complete ingestion vintages.",
    "CYB static metadata check is narrower than complete PIT reconstruction.",
    "SSE affected row counts are adjusted-contract observations, NOT the number of contaminated preadjustment rows."
  ]
}