{
 "page": "https://prediction-market-use-cases.vercel.app/kalshi/series/kxwtamatch/",
 "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": "WTA Tennis Match",
  "frequency": "custom",
  "markets": 2382,
  "events": 1191,
  "vol": 338563928,
  "zero": 12,
  "settled": 2356,
  "yes": 1175,
  "no": 1181,
  "first": "2025-06-18",
  "last": "2025-11-07",
  "by_month": [
   [
    "2025-06",
    326,
    6971370,
    0,
    326,
    161
   ],
   [
    "2025-07",
    494,
    70606658,
    12,
    492,
    245
   ],
   [
    "2025-08",
    636,
    69170032,
    0,
    628,
    314
   ],
   [
    "2025-09",
    356,
    76043685,
    0,
    354,
    177
   ],
   [
    "2025-10",
    536,
    88798395,
    0,
    524,
    262
   ],
   [
    "2025-11",
    34,
    26973788,
    0,
    32,
    16
   ]
  ],
  "trades_by_month": [
   [
    "2025-06",
    29927,
    4718991
   ],
   [
    "2025-07",
    231765,
    72535546
   ],
   [
    "2025-08",
    336113,
    58229661
   ],
   [
    "2025-09",
    323692,
    85457455
   ],
   [
    "2025-10",
    633978,
    87567981
   ],
   [
    "2025-11",
    122185,
    29971123
   ]
  ],
  "top_events": [
   [
    "KXWTAMATCH-25JUL10SABANI",
    2,
    10642485
   ],
   [
    "KXWTAMATCH-25SEP04OSAANI",
    2,
    10297137
   ],
   [
    "KXWTAMATCH-25SEP02MUCOSA",
    2,
    8102090
   ],
   [
    "KXWTAMATCH-25SEP03ANISWI",
    2,
    7356311
   ],
   [
    "KXWTAMATCH-25SEP04SABPEG",
    2,
    7336525
   ]
  ]
 }
}