{
  "data_version": "seed-0.7 · marketcap-1 · 2026-08-30",
  "source": "https://finance.foundation",
  "license": {
    "finance_foundation_data": "CC BY 4.0 — attribution: Finance Foundation (https://finance.foundation)",
    "upstream_values": "Fields sourced from a provider carry their own source field and remain under that provider's terms — see https://finance.foundation/api/v1/sources"
  },
  "entity": "market",
  "data": {
    "id": "nymex",
    "session": {
      "open": "18:00",
      "close": "17:00",
      "timezone": "America/New_York",
      "lunch_break": null,
      "pre_market": null,
      "post_market": null,
      "settlement": "T+1"
    },
    "session_note": "Nearly continuous, so a single open-close pair understates it. NYMEX is a CME Group market on Globex: the electronic week opens Sunday 18:00 and runs to Friday 17:00 New York time, with a daily maintenance halt of an hour. Open-outcry futures ended in 2015. The exchange quotes these hours in Central time; they are converted here to the venue's own zone.",
    "mic": "XNYM",
    "name": "New York Mercantile Exchange",
    "country": "united-states",
    "type": "Derivatives exchange",
    "currency": "USD",
    "timezone": "America/New_York",
    "operator": "New York Mercantile Exchange, Inc.",
    "note": "CME Group’s energy and metals venue. COMEX (XCEC), where gold and copper futures trade, is a segment of this MIC — not of XCME, which is the assumption that most often gets this wrong.",
    "segment_mics": [
      {
        "mic": "XCEC",
        "name": "Commodities Exchange Center"
      },
      {
        "mic": "XNYE",
        "name": "New York Mercantile Exchange - Otc Markets"
      },
      {
        "mic": "XNYL",
        "name": "New York Mercantile Exchange - Energy Markets"
      }
    ],
    "benchmarks": [],
    "operator_lei": "5493008GFNDTXFPHWI47",
    "website": "https://www.cmegroup.com",
    "city": "New York"
  },
  "field_provenance": {
    "mic": "ISO 10383 registry (SWIFT, open) — operating MIC.",
    "segment_mics": "ISO 10383 registry (SWIFT, open) — segment MICs, verified against the registry file.",
    "operator_lei": "GLEIF (CC0).",
    "session": "Hours and the settlement cycle compiled from the venue's own published trading calendar and the settlement rule in force at the dataset date; exact, change-prone facts — verify before operational use.",
    "benchmarks": "The venue's own published benchmark indices."
  },
  "links": {
    "html": "https://finance.foundation/markets/nymex",
    "graph": "https://finance.foundation/api/v1/graph/markets/nymex",
    "sources": "https://finance.foundation/api/v1/sources"
  }
}