Alternatives · updated July 2026
Best OG alternatives
Independent picks for US traders looking for an alternative to OG. Ranked by our composite methodology — regulation, market breadth, fees, liquidity and user experience.
#01
Kalshi
The first CFTC-regulated event contract exchange in the United States.
Kalshi is a CFTC-regulated exchange that lets US residents trade Yes/No contracts on real-world events. Founded in 2018 and approved as a Designated Contract Market in 2020, it pioneered the modern, fully compliant US prediction market.
#02
ForecastEx
An exchange-grade forecast market owned by Interactive Brokers.
ForecastEx is a CFTC-regulated exchange majority-owned by Interactive Brokers. It offers Yes/No forecast contracts on macroeconomic, climate and political events, with order routing through IBKR's platform.
#03
Metaculus
Community forecasting platform focused on calibration and long-horizon questions.
#04
Polymarket
The largest crypto-settled prediction market for global events.
Polymarket is the largest information market in the world, settling Yes/No event contracts in USDC on the Polygon blockchain. It is widely cited in mainstream coverage for its political and macroeconomic markets, but is not available to US residents.
#05
Manifold Markets
Play-money prediction market platform with real communities and calibration data.
#06
Underdog Fantasy
Daily fantasy and pick-em products, adjacent to event contracts.
#07
Interactive Brokers Forecast Contracts
CFTC-regulated event contracts inside the IBKR trading platform.
#08
Robinhood Prediction Markets
Event contracts inside the Robinhood app powered by Kalshi.
#09
Novig
Peer-to-peer sports exchange with no vig.
#10
Fanatics Markets
Emerging Fanatics-branded event contract product.
#11
ProphetX
Peer-to-peer sports betting exchange.
#12
Crypto.com Sports & Markets
Crypto-native event contracts and sports markets from Crypto.com.
#13
PredictIt
Academic political prediction market operating under CFTC no-action relief.
Still deciding?