Reports / March 2025
Monthly report
March 2025: $1.93B traded on prediction markets
Notional volume across 3 exchanges was $1.93B, +13% from February. Polymarket led with a 73.0% share. The busiest day was Fri Mar 28, 2025, at $113M.
Exchanges
Ranked by the month's volume.
| # | Exchange | Volume | Share | vs prior month |
|---|---|---|---|---|
| 1 | Polymarket | $1.41B | 73.0% | −7.7% |
| 2 | Kalshi | $521M | 27.0% | +179% |
| 3 | ForecastEx | $359K | <0.1% | +66% |
What traded
At exchanges that publish a split.
Daily average: $62.4M over 31 days
Busiest days
- Fri Mar 28, 2025: $113M
- Sat Mar 29, 2025: $102M
- Sun Mar 30, 2025: $93.7M
- Sun Mar 23, 2025: $85.6M
- Fri Mar 21, 2025: $84.8M
March 2025: questions
How much volume did prediction markets trade in March 2025?
$1.93B in notional volume across 3 exchanges, up 13% from February. That is $62.4M a day on average.
Which prediction market had the most volume in March 2025?
Polymarket. The top three were Polymarket ($1.41B, 73.0%), Kalshi ($521M, 27.0%), ForecastEx ($359K, <0.1%).
How much prediction market volume was sports in March 2025?
78% at the exchanges that publish a split, including 0% in combos (parlays). Non-sports markets were 22%.
Notional volume: contracts traded × each contract's payout, from each exchange's own daily report. Download every day as CSV · Methods · All reports