{
 "page": "https://prediction-market-use-cases.vercel.app/kalshi/series/kxnba/",
 "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": "Pro Basketball Champion",
  "frequency": "annual",
  "markets": 60,
  "events": 2,
  "vol": 138544845,
  "zero": 3,
  "settled": 30,
  "yes": 1,
  "no": 29,
  "first": "2025-01-22",
  "last": "2025-07-11",
  "by_month": [
   [
    "2025-01",
    30,
    130267765,
    3,
    30,
    1
   ],
   [
    "2025-07",
    30,
    8277080,
    0,
    0,
    0
   ]
  ],
  "trades_by_month": [
   [
    "2025-01",
    1393,
    286113
   ],
   [
    "2025-02",
    5875,
    2176327
   ],
   [
    "2025-03",
    3612,
    2273508
   ],
   [
    "2025-04",
    24452,
    11124098
   ],
   [
    "2025-05",
    70400,
    38187132
   ],
   [
    "2025-06",
    135991,
    76206421
   ],
   [
    "2025-07",
    243,
    105913
   ],
   [
    "2025-08",
    424,
    194528
   ],
   [
    "2025-09",
    1039,
    388890
   ],
   [
    "2025-10",
    7258,
    4778687
   ],
   [
    "2025-11",
    5080,
    3270641
   ]
  ],
  "top_events": [
   [
    "KXNBA-25",
    30,
    130267765
   ],
   [
    "KXNBA-26",
    30,
    8277080
   ]
  ]
 }
}