Live · Dataset
Prediction Markets Overview
Live snapshot of the prediction-market industry: active markets, 24h volume, total volume and liquidity across Polymarket and Kalshi, plus the biggest markets right now.
As of September 3, 2026 at 10:00 PM UTC · updated every ~30 minutes
Active markets
612
24h volume
$127.0M
Total volume
$1.73B
Liquidity
$172.8M
By platform
| Platform | Active markets | 24h volume | Total volume | Liquidity |
|---|---|---|---|---|
| Polymarket | 482 | $126.9M | $1.72B | $172.8M |
| Kalshi | 130 | $114.4K | $9.1M | $0 |
Biggest markets right now
By 24h volume, tradeable markets only.
- 1Los Angeles Dodgers vs. Atlanta BravesPolymarket13%$7.4M
- 2US Open ATP: Francisco Comesana vs Flavio CobolliPolymarket7%$2.6M
- 3Will there be no change in Fed interest rates after the September 2026 meeting?Polymarket58%$1.8M
- 4Will the Fed increase interest rates by 25 bps after the September 2026 meeting?Polymarket43%$1.2M
- 5US Open ATP: Luciano Darderi vs Harry WendelkenPolymarket73%$906.7K
- 6Baltimore Orioles vs. AthleticsPolymarket81%$861.4K
- 7US Open ATP: Thiago Agustin Tirante vs Adrian MannarinoPolymarket7%$841.2K
- 8Baltimore Orioles vs. Colorado RockiesPolymarket85%$831.7K
- 9US Open WTA: Viktorija Golubic vs Diane ParryPolymarket16%$705.3K
- 10US Open ATP: Benjamin Bonzi vs Ignacio BusePolymarket64%$680.7K
Methodology
Figures aggregate the active markets WeeBet syncs from Polymarket and Kalshi (refreshed about every 30 minutes). Volume and liquidity are summed from each platform's reported per-market figures; “biggest markets” ranks tradeable markets (priced 5–95%) by 24-hour volume. Platforms report volume differently, so treat cross-platform comparisons as directional. See the underlying contracts on live markets.
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How to cite WeeBet data
WeeBet. “Prediction Markets Overview — Live Volume & Liquidity.” weebet.com. Accessed September 3, 2026 at 10:00 PM UTC.