{
  "version": 1,
  "data_version": "2026.10.01-rc.1",
  "scope": "Civil calendar dates and scheduled evenings; not timestamp classification, settlement eligibility or historical as-of.",
  "cases": [
    {
      "id": "sse-preholiday",
      "market": "SSE",
      "date": "2026-09-30",
      "expected": {
        "is_trading_day": true
      },
      "label": "Last mainland trading day before National Day",
      "api_path": "/api/v1/markets/SSE/status?date=2026-09-30",
      "source_urls": [
        "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "sse-national-day",
      "market": "SSE",
      "date": "2026-10-01",
      "expected": {
        "is_trading_day": false
      },
      "label": "National Day closure",
      "api_path": "/api/v1/markets/SSE/status?date=2026-10-01",
      "source_urls": [
        "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "sse-reopening",
      "market": "SSE",
      "date": "2026-10-08",
      "expected": {
        "is_trading_day": true
      },
      "label": "Mainland reopening",
      "api_path": "/api/v1/markets/SSE/status?date=2026-10-08",
      "source_urls": [
        "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "sse-makeup-saturday",
      "market": "SSE",
      "date": "2026-10-10",
      "expected": {
        "is_trading_day": false,
        "adjusted_workday": true
      },
      "label": "Make-up workday is not an exchange trading day",
      "api_path": "/api/v1/markets/SSE/status?date=2026-10-10",
      "source_urls": [
        "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "sse.2026"
          ],
          "source_urls": [
            "https://www.sse.com.cn/disclosure/announcement/general/c/c_20251222_10802507.shtml"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "shfe-preholiday-night",
      "market": "SHFE",
      "date": "2026-09-30",
      "expected": {
        "night_session.has": false,
        "night_session.civil_date": null
      },
      "label": "No new night session before a holiday",
      "api_path": "/api/v1/markets/SHFE/status?date=2026-09-30",
      "source_urls": [
        "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "pre_holiday",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "incoming_night_session": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "prior_civil_evening_attribution",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "shfe-reopening-evening",
      "market": "SHFE",
      "date": "2026-10-08",
      "expected": {
        "night_session.has": true,
        "night_session.trading_date": "2026-10-09"
      },
      "label": "Reopening evening belongs to the next trading date",
      "api_path": "/api/v1/markets/SHFE/status?date=2026-10-08",
      "source_urls": [
        "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "next_trading_date_attribution",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "incoming_night_session": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "post_holiday",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "shfe-reopening-incoming",
      "market": "SHFE",
      "date": "2026-10-08",
      "expected": {
        "incoming_night_session.has": false,
        "incoming_night_session.civil_date": null
      },
      "label": "No incoming night does not mean no evening session",
      "api_path": "/api/v1/markets/SHFE/status?date=2026-10-08",
      "source_urls": [
        "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "next_trading_date_attribution",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "incoming_night_session": {
          "source_ids": [
            "shfe.2026"
          ],
          "source_urls": [
            "https://www.shfe.com.cn/services/calenderandholidays/holiday/"
          ],
          "notice_ids": [],
          "derivation": "post_holiday",
          "source_checked_at": "2026-09-27",
          "verified_at": "2026-09-29"
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "gold-friday-attribution",
      "market": "SHFE",
      "product": "au",
      "date": "2026-10-09",
      "expected": {
        "night_session.has": true,
        "night_session.trading_date": "2026-10-12"
      },
      "label": "Friday-starting gold night belongs to Monday",
      "api_path": "/api/v1/markets/SHFE/products/au/status?date=2026-10-09",
      "source_urls": [
        "https://www.shfe.com.cn/services/calenderandholidays/holiday/",
        "https://www.shfe.com.cn/services/calenderandholidays/tradinghours/"
      ],
      "field_provenance": null
    },
    {
      "id": "gold-saturday-evening",
      "market": "SHFE",
      "product": "au",
      "date": "2026-10-10",
      "expected": {
        "night_session.has": false,
        "night_session.civil_date": null
      },
      "label": "Saturday evening is distinct from the tail of Friday night",
      "api_path": "/api/v1/markets/SHFE/products/au/status?date=2026-10-10",
      "source_urls": [
        "https://www.shfe.com.cn/services/calenderandholidays/holiday/",
        "https://www.shfe.com.cn/services/calenderandholidays/tradinghours/"
      ],
      "field_provenance": null
    },
    {
      "id": "gfex-no-night",
      "market": "GFEX",
      "product": "lc",
      "date": "2026-10-08",
      "expected": {
        "night_session.has": false
      },
      "label": "GFEX lithium carbonate is day-only",
      "api_path": "/api/v1/markets/GFEX/products/lc/status?date=2026-10-08",
      "source_urls": [
        "https://www.gfex.com.cn/en/Notices/202601/ecd5e39ce8a04d2eb0a88d47ba2abd26.shtml",
        "https://www.gfex.com.cn/gfex/sspzb/sspz.shtml"
      ],
      "field_provenance": null
    },
    {
      "id": "dce-eggs-no-night",
      "market": "DCE",
      "product": "jd",
      "date": "2026-10-08",
      "expected": {
        "night_session.has": false,
        "night_session.civil_date": null
      },
      "label": "A day-only product does not inherit its exchange night session",
      "api_path": "/api/v1/markets/DCE/products/jd/status?date=2026-10-08",
      "source_urls": [
        "https://finance.eastmoney.com/a/202512173594230398.html",
        "https://www.jinxinqh.com/article/205"
      ],
      "field_provenance": null
    },
    {
      "id": "hong-kong-christmas-eve",
      "market": "HKEX",
      "date": "2026-12-24",
      "expected": {
        "status": "half_day",
        "is_trading_day": true
      },
      "label": "Hong Kong half day still counts as one trading date",
      "api_path": "/api/v1/markets/HKEX/status?date=2026-12-24",
      "source_urls": [
        "https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/SEHK/2025/ce_SEHK_CT_075_2025.pdf"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "hkex.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/SEHK/2025/ce_SEHK_CT_075_2025.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-28",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "hkex.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/SEHK/2025/ce_SEHK_CT_075_2025.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-28",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "southbound-christmas-eve",
      "market": "SB",
      "date": "2026-12-24",
      "expected": {
        "status": "half_day",
        "is_trading_day": true
      },
      "label": "Southbound half-day calendar is independently sourced",
      "api_path": "/api/v1/markets/SB/status?date=2026-12-24",
      "source_urls": [
        "https://www.hkex.com.hk/-/media/HKEX-Market/Mutual-Market/Stock-Connect/Reference-Materials/Trading-Hour,-Trading-and-Settlement-Calendar/2026-Calendar_pdf_e.pdf"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "hkex.stock-connect.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Mutual-Market/Stock-Connect/Reference-Materials/Trading-Hour,-Trading-and-Settlement-Calendar/2026-Calendar_pdf_e.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-29",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "hkex.stock-connect.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Mutual-Market/Stock-Connect/Reference-Materials/Trading-Hour,-Trading-and-Settlement-Calendar/2026-Calendar_pdf_e.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-29",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "hk-open-national-week",
      "market": "HKEX",
      "date": "2026-10-02",
      "expected": {
        "is_trading_day": true
      },
      "label": "Hong Kong can trade during the mainland closure",
      "api_path": "/api/v1/markets/HKEX/status?date=2026-10-02",
      "source_urls": [
        "https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/SEHK/2025/ce_SEHK_CT_075_2025.pdf"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "hkex.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/SEHK/2025/ce_SEHK_CT_075_2025.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-28",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "hkex.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/SEHK/2025/ce_SEHK_CT_075_2025.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-28",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "southbound-closed-national-week",
      "market": "SB",
      "date": "2026-10-02",
      "expected": {
        "is_trading_day": false
      },
      "label": "Hong Kong open does not imply Southbound available",
      "api_path": "/api/v1/markets/SB/status?date=2026-10-02",
      "source_urls": [
        "https://www.hkex.com.hk/-/media/HKEX-Market/Mutual-Market/Stock-Connect/Reference-Materials/Trading-Hour,-Trading-and-Settlement-Calendar/2026-Calendar_pdf_e.pdf"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "hkex.stock-connect.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Mutual-Market/Stock-Connect/Reference-Materials/Trading-Hour,-Trading-and-Settlement-Calendar/2026-Calendar_pdf_e.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-29",
          "verified_at": "2026-09-29"
        },
        "is_trading_day": {
          "source_ids": [
            "hkex.stock-connect.2026"
          ],
          "source_urls": [
            "https://www.hkex.com.hk/-/media/HKEX-Market/Mutual-Market/Stock-Connect/Reference-Materials/Trading-Hour,-Trading-and-Settlement-Calendar/2026-Calendar_pdf_e.pdf"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-09-29",
          "verified_at": "2026-09-29"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "china-unknown-year",
      "market": "SSE",
      "date": "2027-01-04",
      "expected": {
        "status": "unknown",
        "is_trading_day": null
      },
      "label": "Unapproved future year is unknown, not closed",
      "api_path": "/api/v1/markets/SSE/status?date=2027-01-04",
      "source_urls": [],
      "field_provenance": {
        "status": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": null,
          "verified_at": null
        },
        "is_trading_day": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": null,
          "verified_at": null
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    },
    {
      "id": "nyse-approved-future",
      "market": "NYSE",
      "date": "2027-07-05",
      "expected": {
        "is_trading_day": false
      },
      "label": "Approved future coverage is independent by market",
      "api_path": "/api/v1/markets/NYSE/status?date=2027-07-05",
      "source_urls": [
        "https://www.nyse.com/trade/hours-calendars"
      ],
      "field_provenance": {
        "status": {
          "source_ids": [
            "nyse.2027"
          ],
          "source_urls": [
            "https://www.nyse.com/trade/hours-calendars"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-10-01",
          "verified_at": "2026-10-01"
        },
        "is_trading_day": {
          "source_ids": [
            "nyse.2027"
          ],
          "source_urls": [
            "https://www.nyse.com/trade/hours-calendars"
          ],
          "notice_ids": [],
          "derivation": "annual_calendar_and_weekend_rule",
          "source_checked_at": "2026-10-01",
          "verified_at": "2026-10-01"
        },
        "night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "incoming_night_session": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "not_applicable",
          "source_checked_at": null,
          "verified_at": null
        },
        "settlement": {
          "source_ids": [],
          "source_urls": [],
          "notice_ids": [],
          "derivation": "independent_calendar_not_loaded",
          "source_checked_at": null,
          "verified_at": null
        }
      }
    }
  ]
}