Total Active Markets

Count of all non-resolved markets currently tracked across Polymarket, Kalshi, and Limitless.

121,838

Total Volume

Lifetime trading volume across all platforms. Polymarket and Kalshi report volume directly; Limitless volume is cumulative USDC traded.

$5,565,533,998

24h Volume

24-hour trading volume. Polymarket and Kalshi report this directly. Limitless does not break out 24h volume separately, so it is not included.

$463,658,245

Total Open Interest

Polymarket: sum of pool liquidity. Kalshi: open interest (contracts outstanding). Limitless: uses total volume as a proxy — no separate OI metric is available.

$2,630,155,679

Polymarket$2.26BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.

Kalshi$350.04MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.

Limitless$18.32MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.

Kalshi

CFTC-regulated US prediction exchange

Visit Kalshi

Kalshi is the first CFTC-regulated prediction market exchange in the United States. Traders use US dollars and can deposit via bank transfer. Kalshi lists tens of thousands of markets across economics, politics, sports, and more.

Active Markets

94,385

Total Volume

$531.83M

24h Volume

$30.34M

Open Interest

$350.04M