{
  "schema_version": "capacity-data-quality.v1",
  "generated_as_of": "2026-10-16",
  "daily_periods": [
    {
      "period": "common snapshot",
      "start": "2025-09-30",
      "end": "2025-09-30",
      "common_dates": 1,
      "markets": [
        "US",
        "HK",
        "A-share",
        "JP"
      ]
    },
    {
      "period": "2020-2024",
      "start": "2020-01-06",
      "end": "2024-12-30",
      "common_dates": 1065,
      "markets": [
        "US",
        "HK",
        "A-share",
        "JP"
      ]
    },
    {
      "period": "2025",
      "start": "2025-01-06",
      "end": "2025-09-30",
      "common_dates": 161,
      "markets": [
        "US",
        "HK",
        "A-share",
        "JP"
      ]
    },
    {
      "period": "2026 YTD",
      "start": "2026-01-05",
      "end": "2026-04-30",
      "common_dates": 71,
      "markets": [
        "HK",
        "A-share",
        "JP"
      ]
    }
  ],
  "markets": [
    {
      "market": "US",
      "daily": {
        "start": "2019-11-01",
        "end": "2025-10-04",
        "latest": "2025-10-03",
        "basis": "SimFin close × volume; turnover is a close-price proxy, not reported traded value. Sparse source date 2025-10-04 is excluded; latest eligible observation is 2025-10-03."
      },
      "minute": {
        "status": "not_in_research_panel",
        "caveat": "No minute source is included in this cross-market research panel."
      },
      "level2": {
        "status": "not_in_research_panel",
        "caveat": "No Level 2 source is included in this cross-market research panel."
      }
    },
    {
      "market": "HK",
      "daily": {
        "start": "2019-11-01",
        "end": "2026-05-26",
        "latest": "2026-05-26",
        "basis": "RQData reported turnover in HKD; historical universe coverage remains unproven."
      },
      "minute": {
        "status": "not_in_research_panel",
        "caveat": "No minute source is included in this cross-market research panel."
      },
      "level2": {
        "status": "not_in_research_panel",
        "caveat": "No Level 2 source is included in this cross-market research panel."
      }
    },
    {
      "market": "A-share",
      "daily": {
        "start": "2015-01-05",
        "end": "2026-10-15",
        "latest": "2026-10-15",
        "basis": "TuShare SH/SZ daily turnover; BSE excluded; prior-period status filters do not establish historical PIT."
      },
      "minute": {
        "status": "available",
        "start": "2022-07-15",
        "end": "2026-10-13",
        "sessions": 1019,
        "rows": 1304100646,
        "security_days": 5411206,
        "calendar_gaps": 9,
        "caveat": "Published TuShare operational version; nine exchange-calendar gaps remain and full native semantic rebaseline is incomplete."
      },
      "level2": {
        "status": "sampled",
        "snapshot_dates": 10,
        "snapshot_rows": 311395,
        "usable_snapshot_rows": 306483,
        "event_dates": 2,
        "caveat": "Selected-date static snapshots only; event semantics and full-market coverage are not verified."
      }
    },
    {
      "market": "JP",
      "daily": {
        "start": "2019-11-01",
        "end": "2026-05-01",
        "latest": "2026-05-01",
        "basis": "J-Quants daily traded value; market cap uses exploratory Yahoo share history."
      },
      "minute": {
        "status": "not_in_research_panel",
        "caveat": "No minute source is included in this cross-market research panel."
      },
      "level2": {
        "status": "not_in_research_panel",
        "caveat": "No Level 2 source is included in this cross-market research panel."
      }
    }
  ],
  "minute_daily_reconciliation": {
    "start": "2022-07-15",
    "end": "2026-10-13",
    "days": 1019,
    "matched_security_days": 5411206,
    "daily_only_security_days": 2084,
    "minute_duplicate_keys": 0,
    "invalid_amount_rows": 0,
    "median_daily_total_ratio": 0.9997399205246067,
    "abs_diff_le_1_cny": 0.9020990884471964,
    "abs_diff_le_100_cny": 0.9735615313850554,
    "rel_diff_le_0_1pct": 0.9740507014517651,
    "rel_diff_over_1pct": 0.01759496866317786,
    "rel_diff_over_5pct": 0.0008986906061236626,
    "rel_diff_over_10pct": 0.0002097499152684263,
    "relative_diff_quantiles": {
      "0.5": 8.469810137497672e-11,
      "0.9": 7.588874430421154e-09,
      "0.99": 0.0162692562109494,
      "1.0": 0.7091690298186818
    },
    "daily_zero_turnover_rate": 0.0,
    "yearly": {
      "2022": {
        "matched_security_days": 562860,
        "daily_security_days": 564194,
        "daily_only_security_days": 1334,
        "minute_only_security_days": 0,
        "daily_zero_turnover_security_days": 0,
        "relative_diff_over_0_1pct": 368,
        "relative_diff_over_1pct": 207,
        "relative_diff_over_5pct": 32,
        "relative_diff_over_10pct": 10
      },
      "2023": {
        "matched_security_days": 1222618,
        "daily_security_days": 1222843,
        "daily_only_security_days": 225,
        "minute_only_security_days": 0,
        "daily_zero_turnover_security_days": 0,
        "relative_diff_over_0_1pct": 15479,
        "relative_diff_over_1pct": 9549,
        "relative_diff_over_5pct": 1512,
        "relative_diff_over_10pct": 579
      },
      "2024": {
        "matched_security_days": 1293394,
        "daily_security_days": 1293893,
        "daily_only_security_days": 499,
        "minute_only_security_days": 0,
        "daily_zero_turnover_security_days": 0,
        "relative_diff_over_0_1pct": 40227,
        "relative_diff_over_1pct": 29423,
        "relative_diff_over_5pct": 2126,
        "relative_diff_over_10pct": 424
      },
      "2025": {
        "matched_security_days": 1313872,
        "daily_security_days": 1313898,
        "daily_only_security_days": 26,
        "minute_only_security_days": 0,
        "daily_zero_turnover_security_days": 0,
        "relative_diff_over_0_1pct": 45102,
        "relative_diff_over_1pct": 33434,
        "relative_diff_over_5pct": 596,
        "relative_diff_over_10pct": 52
      },
      "2026": {
        "matched_security_days": 1018462,
        "daily_security_days": 1018462,
        "daily_only_security_days": 0,
        "minute_only_security_days": 0,
        "daily_zero_turnover_security_days": 0,
        "relative_diff_over_0_1pct": 39241,
        "relative_diff_over_1pct": 22597,
        "relative_diff_over_5pct": 597,
        "relative_diff_over_10pct": 70
      }
    },
    "total_ratio_quantiles": {
      "0.01": 0.9965169327756591,
      "0.5": 0.9997399205246067,
      "0.99": 1.000000000165275
    }
  },
  "intraday_concentration": {
    "days": 1019,
    "quantiles": {
      "0.5": {
        "top_5min_share": 0.08937004034089269,
        "open_30min_share": 0.306414244738671,
        "close_30min_share": 0.12402471032367736
      },
      "0.9": {
        "top_5min_share": 0.10510985786006086,
        "open_30min_share": 0.34413228570045906,
        "close_30min_share": 0.14266143391030828
      },
      "0.99": {
        "top_5min_share": 0.126921235519639,
        "open_30min_share": 0.37622957997985473,
        "close_30min_share": 0.16421544380061398
      }
    }
  },
  "audit_receipts": {
    "minute_audit_sha256": "59b7eb0da0bb8b48218146fd7a480d3e6b8fd8b6a12e7abc604973aed3a7c6e6",
    "minute_source_quality_status": "tushare_native_baseline_required",
    "full_minute_semantic_rebaseline_complete": false,
    "l2_measurement_evidence": "descriptive_historical_static_expansion",
    "l2_actual_order_calibrated": false
  }
}