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.

Polymarket

Crypto-native prediction market on Polygon

Visit Polymarket

Polymarket is the largest crypto-native prediction market, built on the Polygon blockchain. Traders use USDC stablecoins to buy and sell outcome shares. Known for deep liquidity on political and cultural markets, with a global user base.

Active Markets

25,847

Total Volume

$5.01B

24h Volume

$433.32M

Open Interest

$2.26B