{
 "page": "https://prediction-market-use-cases.vercel.app/kalshi/series/kxmarmad/",
 "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": "Men's College Basketball Tournament Champion",
  "frequency": "custom",
  "markets": 488,
  "events": 68,
  "vol": 415470990,
  "zero": 52,
  "settled": 417,
  "yes": 67,
  "no": 350,
  "first": "2025-01-22",
  "last": "2025-10-28",
  "by_month": [
   [
    "2025-01",
    26,
    70352258,
    0,
    26,
    1
   ],
   [
    "2025-02",
    2,
    1283611,
    0,
    2,
    0
   ],
   [
    "2025-03",
    389,
    340767858,
    52,
    389,
    66
   ],
   [
    "2025-10",
    71,
    3067263,
    0,
    0,
    0
   ]
  ],
  "trades_by_month": [
   [
    "2025-01",
    824,
    300755
   ],
   [
    "2025-02",
    4553,
    1372644
   ],
   [
    "2025-03",
    1252377,
    322861300
   ],
   [
    "2025-04",
    237463,
    87868541
   ],
   [
    "2025-10",
    613,
    480692
   ],
   [
    "2025-11",
    4862,
    2764279
   ]
  ],
  "top_events": [
   [
    "KXMARMAD-25",
    69,
    75380570
   ],
   [
    "KXMARMAD-25R4G2",
    34,
    26802345
   ],
   [
    "KXMARMAD-25R4G1",
    34,
    21082701
   ],
   [
    "KXMARMAD-25R8G2",
    16,
    17474310
   ],
   [
    "KXMARMAD-25R8G1",
    18,
    13937147
   ]
  ]
 }
}