Comparison · updated July 2026
ProphetX vs Interactive Brokers Forecast Contracts
ProphetX and Interactive Brokers Forecast Contracts 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.
ProphetX
Peer-to-peer sports betting exchange.
Interactive Brokers Forecast Contracts
CFTC-regulated event contracts inside the IBKR trading platform.
Rating
ProphetX
3.9
Interactive Brokers Forecast Contracts
4.1
Best for
ProphetX
Exchange-style sports bettors
Interactive Brokers Forecast Contracts
Existing IBKR clients
Regulation
ProphetX
State-by-state
Interactive Brokers Forecast Contracts
CFTC-regulated
US availability
ProphetX
Available
Interactive Brokers Forecast Contracts
Available
Fees
ProphetX
1–2% commission
Interactive Brokers Forecast Contracts
$0.02–$0.10 per contract
Mobile
ProphetX
Good
Interactive Brokers Forecast Contracts
Good
Markets
ProphetX
Sports
Interactive Brokers Forecast Contracts
Economy, Financial events, Politics
Payment
ProphetX
Interactive Brokers Forecast Contracts
Founded
ProphetX
Interactive Brokers Forecast Contracts
Verdicts
Who wins, category by category
Best overall
Interactive Brokers Forecast Contracts
Higher composite rating across our methodology.
Best for regulation
Interactive Brokers Forecast Contracts
Operates as a CFTC-designated contract market.
Best for market variety
Interactive Brokers Forecast Contracts
Wider catalogue of available event contracts.
Final take
Should you choose ProphetX or Interactive Brokers Forecast Contracts?
Interactive Brokers Forecast Contracts comes out narrowly ahead in our methodology, but both platforms have a clear lane. Choose ProphetX for exchange-style sports bettors, and Interactive Brokers Forecast Contracts for existing ibkr clients.