Comparison · updated July 2026

OG vs Interactive Brokers Forecast Contracts

OG 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.

Editorial disclosure. HunchMarkets may earn a commission when readers sign up via our links. Our rankings, ratings and methodology are decided independently of commercial relationships.
OG logo

OG

3.5/5

Onchain event markets platform.

Onchain traders DeFi / offshore
Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

4.1/5

CFTC-regulated event contracts inside the IBKR trading platform.

Existing IBKR clients CFTC-regulated

Rating

OG logo

OG

3.5

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

4.1

Best for

OG logo

OG

Onchain traders

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

Existing IBKR clients

Regulation

OG logo

OG

DeFi / offshore

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

CFTC-regulated

US availability

OG logo

OG

Restricted

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

Available

Fees

OG logo

OG

Onchain fees + spread

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

$0.02–$0.10 per contract

Mobile

OG logo

OG

Good

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

Good

Markets

OG logo

OG

Politics, Crypto, Culture

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

Economy, Financial events, Politics

Payment

OG logo

OG

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

Founded

OG logo

OG

Interactive Brokers Forecast Contracts logo

Interactive Brokers Forecast Contracts

Verdicts

Who wins, category by category

Best overall

Interactive Brokers Forecast Contracts

Higher composite rating across our methodology.

Best for beginners

OG

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

OG

Deepest order books on headline markets.

Best for market variety

OG

Wider catalogue of available event contracts.

Final take

Should you choose OG or Interactive Brokers Forecast Contracts?

Interactive Brokers Forecast Contracts comes out narrowly ahead in our methodology, but both platforms have a clear lane. Choose OG for onchain traders, and Interactive Brokers Forecast Contracts for existing ibkr clients.

Risk warning. Event contracts are financial instruments. You can lose your full premium. Trade only where legally permitted in your jurisdiction. This is not investment, legal or tax advice.