Comparison · updated July 2026
Interactive Brokers Forecast Contracts vs Metaculus
Interactive Brokers Forecast Contracts and Metaculus 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.
Interactive Brokers Forecast Contracts
CFTC-regulated event contracts inside the IBKR trading platform.
Metaculus
Community forecasting platform focused on calibration and long-horizon questions.
Rating
Interactive Brokers Forecast Contracts
4.1
Metaculus
4.4
Best for
Interactive Brokers Forecast Contracts
Existing IBKR clients
Metaculus
Serious forecasters
Regulation
Interactive Brokers Forecast Contracts
CFTC-regulated
Metaculus
Non-profit / educational
US availability
Interactive Brokers Forecast Contracts
Available
Metaculus
Available
Fees
Interactive Brokers Forecast Contracts
$0.02–$0.10 per contract
Metaculus
Free
Mobile
Interactive Brokers Forecast Contracts
Good
Metaculus
Good
Markets
Interactive Brokers Forecast Contracts
Economy, Financial events, Politics
Metaculus
AI, Politics, Economy, Culture
Payment
Interactive Brokers Forecast Contracts
Metaculus
Founded
Interactive Brokers Forecast Contracts
Metaculus
Verdicts
Who wins, category by category
Best for beginners
Interactive Brokers Forecast Contracts
Cleaner onboarding and a more polished consumer experience.
Best for regulation
Interactive Brokers Forecast Contracts
Operates as a CFTC-designated contract market.
Best for liquidity
Interactive Brokers Forecast Contracts
Deepest order books on headline markets.
Final take
Should you choose Interactive Brokers Forecast Contracts or Metaculus?
Metaculus comes out narrowly ahead in our methodology, but both platforms have a clear lane. Choose Interactive Brokers Forecast Contracts for existing ibkr clients, and Metaculus for serious forecasters.