Comparison · updated July 2026
ForecastEx vs OG
ForecastEx and OG are two of the most discussed prediction market platforms in the US. Here's a side-by-side look at how they compare on the factors that actually matter for traders.
ForecastEx
An exchange-grade forecast market owned by Interactive Brokers.
Rating
ForecastEx
4.4
OG
3.5
Best for
ForecastEx
Brokerage-grade access via Interactive Brokers
OG
Onchain traders
Regulation
ForecastEx
CFTC-regulated
OG
DeFi / offshore
US availability
ForecastEx
Available
OG
Restricted
Fees
ForecastEx
1 cent per contract
OG
Onchain fees + spread
Mobile
ForecastEx
Good
OG
Good
Markets
ForecastEx
Economy, Climate, Politics, Financial events
OG
Politics, Crypto, Culture
Payment
ForecastEx
Bank transfer, IBKR funding
OG
Founded
ForecastEx
2023
OG
Verdicts
Who wins, category by category
Best for beginners
ForecastEx
Cleaner onboarding and a more polished consumer experience.
Final take
Should you choose ForecastEx or OG?
For US-based traders, ForecastEx is the obvious starting point: OG is not legally available in the United States. ForecastEx is the best option for serious traders who already use Interactive Brokers, who want regulated US exposure, and who prefer a brokerage workflow over a consumer app.