Reviews
Platform reviews
Long-form, independent reviews of the prediction market platforms most relevant to US traders.
Kalshi
The first CFTC-regulated event contract exchange in the United States.
Polymarket
The largest crypto-settled prediction market for global events.
ForecastEx
An exchange-grade forecast market owned by Interactive Brokers.
PredictIt
Academic political prediction market operating under CFTC no-action relief.
Interactive Brokers Forecast Contracts
CFTC-regulated event contracts inside the IBKR trading platform.
Robinhood Prediction Markets
Event contracts inside the Robinhood app powered by Kalshi.
Crypto.com Sports & Markets
Crypto-native event contracts and sports markets from Crypto.com.
Underdog Fantasy
Daily fantasy and pick-em products, adjacent to event contracts.
Fanatics Markets
Emerging Fanatics-branded event contract product.
Novig
Peer-to-peer sports exchange with no vig.
ProphetX
Peer-to-peer sports betting exchange.
OG
Onchain event markets platform.
Manifold Markets
Play-money prediction market platform with real communities and calibration data.
Metaculus
Community forecasting platform focused on calibration and long-horizon questions.