{
 "page": "https://prediction-market-use-cases.vercel.app/kalshi/category/mentions/",
 "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": {
  "markets": 19277,
  "events": 649,
  "nseries": 192,
  "vol": 114977256,
  "zero": 8868,
  "settled": 17509,
  "yes": 5423,
  "no": 12086,
  "first": "2025-01-29",
  "last": "2025-11-23",
  "by_year": [
   {
    "year": 2025,
    "markets": 19277,
    "contracts": 114977256,
    "never_traded": 8868,
    "settled": 17509,
    "yes": 5423
   }
  ],
  "top_series": [
   {
    "series": "KXTRUMPMENTION",
    "title": "What will Trump say?",
    "markets": 1887,
    "contracts": 20444117,
    "never_traded": 61
   },
   {
    "series": "KXDJTJOINTSESSION",
    "title": "Joint Session of Congress",
    "markets": 40,
    "contracts": 13744260,
    "never_traded": 0
   },
   {
    "series": "KXTRUMPMENTIONB",
    "title": "Trump Mention B",
    "markets": 500,
    "contracts": 7793974,
    "never_traded": 0
   },
   {
    "series": "KXSECPRESSMENTION",
    "title": "Sec Press mentions",
    "markets": 953,
    "contracts": 7411722,
    "never_traded": 24
   },
   {
    "series": "KXFEDMENTION",
    "title": "Fed mention",
    "markets": 261,
    "contracts": 5243591,
    "never_traded": 0
   },
   {
    "series": "KXSNFMENTION",
    "title": "Sunday Night Football Mention",
    "markets": 217,
    "contracts": 4090383,
    "never_traded": 0
   },
   {
    "series": "KXTRUMPSAY",
    "title": "What will trump say",
    "markets": 240,
    "contracts": 3768932,
    "never_traded": 0
   },
   {
    "series": "KXTNFMENTION",
    "title": "TNF Mention",
    "markets": 240,
    "contracts": 3402902,
    "never_traded": 6
   },
   {
    "series": "KXNFLMENTION",
    "title": "NFL Mention",
    "markets": 237,
    "contracts": 3263772,
    "never_traded": 14
   },
   {
    "series": "KXSWIFTMENTION",
    "title": "What will Taylor Swfit say ",
    "markets": 106,
    "contracts": 2936480,
    "never_traded": 0
   }
  ]
 }
}