{
 "page": "https://prediction-market-use-cases.vercel.app/kalshi/series/kxnhlgame/",
 "source": "Becker Kalshi dataset (github.com/Jon-Becker/prediction-market-analysis); categories from Kalshi public API GET /trade-api/v2/series fetched 2026-10-17",
 "snapshot": "2026-10-17",
 "units": {
  "contracts": "sum of markets.volume (contracts, not dollars)"
 },
 "data": {
  "category": "Sports",
  "title": "NHL Game",
  "frequency": "custom",
  "markets": 1010,
  "events": 505,
  "vol": 344058272,
  "zero": 1,
  "settled": 982,
  "yes": 491,
  "no": 491,
  "first": "2025-04-18",
  "last": "2025-11-22",
  "by_month": [
   [
    "2025-04",
    90,
    2276743,
    0,
    90,
    45
   ],
   [
    "2025-05",
    66,
    32081885,
    0,
    66,
    33
   ],
   [
    "2025-06",
    10,
    48963882,
    0,
    10,
    5
   ],
   [
    "2025-09",
    102,
    2935825,
    1,
    102,
    51
   ],
   [
    "2025-10",
    426,
    155062435,
    0,
    426,
    213
   ],
   [
    "2025-11",
    316,
    102737502,
    0,
    288,
    144
   ]
  ],
  "trades_by_month": [
   [
    "2025-04",
    13737,
    2056211
   ],
   [
    "2025-05",
    80297,
    24283674
   ],
   [
    "2025-06",
    130067,
    56980584
   ],
   [
    "2025-09",
    18711,
    1222890
   ],
   [
    "2025-10",
    805587,
    145959085
   ],
   [
    "2025-11",
    762681,
    119544217
   ]
  ],
  "top_events": [
   [
    "KXNHLGAME-25JUN12EDMFLA",
    2,
    13810363
   ],
   [
    "KXNHLGAME-25JUN06FLAEDM",
    2,
    10968625
   ],
   [
    "KXNHLGAME-25JUN14FLAEDM",
    2,
    8622224
   ],
   [
    "KXNHLGAME-25JUN17EDMFLA",
    2,
    8463857
   ],
   [
    "KXNHLGAME-25JUN04FLAEDM",
    2,
    8175918
   ]
  ]
 }
}