Market data

Prediction market volume and open interest by venue

Daily trading volume and open interest for the venues we scan, over the last 30 days.

Source: DefiLlama · daily buckets, UTC · refreshed hourly

24h volume
$789.2M
▲ +11.7%vs previous day
30d volume
20.93B
Open interest
2.85B
▲ +54.0%over 30 days
Venues tracked
3
01

24h volume · last 30 days

  • Polymarket
  • Kalshi
  • Limitless
$0$200.0M$400.0M$600.0M$800.0MSep 26Oct 3Oct 10Oct 17Oct 24KalshiPolymarketLimitless
02

Open interest · last 30 days

  • Polymarket
  • Kalshi
$01.00B2.00B3.00BSep 26Oct 3Oct 10Oct 17Oct 24KalshiPolymarket

Limitless doesn't publish open-interest data.

03

Market share

30d volume20.93B
  • Polymarket26.2%
  • Kalshi73.8%
  • Limitless<0.1%
Open interest2.85B
  • Polymarket28.8%
  • Kalshi71.2%
  • Limitless—
04

By venue

Venue24h volume1d change7d volume30d volume30d shareOpen interestOI 30d change
Polymarket$254.2M▲ +32.7%1.35B5.48B26.2%$818.9M▲ +30.7%
Kalshi$534.9M▲ +4.0%3.87B15.45B73.8%2.03B▲ +65.9%
Limitless$28.5k▲ +20.6%$172.1k$1.5M<0.1%——
Where volume is, spreads follow

Busy markets misprice more often. See today's cross-venue spreads in the scanner.

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