Key takeaways
- A sportsbook sets a line and takes inventory. A prediction market is often a two-sided order book of event contracts.
- Regulation, tax treatment, and eligibility differ by product and state. Read the venue’s own rules.
- Liquidity can vanish. A 90¢ contract is not a 90% probability in a thin market.
Search interest in prediction markets jumped in 2026. The pitch is “trade an outcome.” A sportsbook is a dealer with a house edge baked into the juice. Many event-contract venues are structured as exchanges: you buy a contract from another trader, plus fees. That changes who profits if you are wrong, how prices form, and what a regulator considers a swap, a security, or a bet.
Not an invitation to gamble. If you cannot name the venue, the contract specs, and whether you can legally use it, you are not ready.
