Event contracts filed with the CFTC, by exchange, last 12 weeks
Every new contract a US exchange self-certifies is filed a business day before it lists.
73
148
206
121
129
90
245
140
135
158
129
112
Aug 3Aug 10Aug 17Aug 24Aug 31Sep 7Sep 14Sep 21Sep 28Oct 5Oct 12Oct 19
12-week total by exchange
Kalshi429
UDX428
Novig184
Polymarket US172
Gemini164
DKeX134
ProphetX114
ForecastEx61
Source: Paddock Ledger, paddock.finance/venues/charts, as of 2026-10-21
Open markets per platform, daily
How many single-market contracts each platform has open, counted once a day.
Kalshi158,563
Polymarket US41,500
Gemini12,252
Source: Paddock Ledger, paddock.finance/venues/charts, as of 2026-10-22
Markets settled per platform, daily
Contracts that resolved each day, counted from each platform's own settlement record.
Kalshi129,560
Polymarket US42,799
Gemini18,167
Source: Paddock Ledger, paddock.finance/venues/charts, as of 2026-10-22
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