Prediction Markets vs Betting Exchanges

Betting exchanges and prediction markets are close cousins. Both match customers against each other, both charge commission rather than build a margin into the odds, and both let you trade out before the event ends. The real differences are legal status, market coverage and how the price is presented.

The same mechanics, different vocabulary

• On an exchange you "back" an outcome; on a prediction market you buy YES.
• On an exchange you "lay" it; on a prediction market you buy NO or sell YES.
• Exchange odds of 4.0 are the same as a 25-cent contract.
• Exchange liability on a lay bet is the equivalent of the collateral locked when you buy NO.

Regulation

This is the substantive split. Betting exchanges hold gambling licences — the UK Gambling Commission and similar bodies — and are restricted to jurisdictions where those licences apply. Several prediction markets are regulated as derivatives venues by a financial regulator, which makes them lawful in places where sports betting is not, and subject to a different rulebook on capital, reporting and client money. On-chain venues often hold no licence at all.

Market coverage

Exchanges are overwhelmingly sport, with horse racing and football the deepest books in the world. Prediction markets are strongest in politics, economics, crypto and news events, with sport growing fast. If you only trade football in-play, a mature exchange will usually give you better depth. If you want to price an election, a rate decision or a technology milestone, the exchange will not list it at all.

Costs

Exchanges charge commission on net winnings per market, typically 2–5%, sometimes with a loyalty discount, plus premium charges for very profitable accounts on some operators. Prediction markets charge per-trade fees, settlement fees, or nothing at all beyond the spread, with on-chain venues adding network gas. Neither model is automatically cheaper — it depends on how often you trade and how big your edge is.

Funding

Exchanges use bank transfers, cards and e-wallets in local currency. Prediction markets split into fiat venues that behave like a broker and crypto venues funded with stablecoins, where deposits are near-instant but you carry wallet and bridge risk.

Liquidity

Depth is not a platform-level property; it is a market-level one. A major football match on a big exchange has more money in it than nearly any prediction market. A major election on a big prediction market has more money than the same market on an exchange. Check the specific book, not the brand.

Choosing between them

Use the country pages on this site first: in many jurisdictions the choice is made for you by which model is licensed. Where both are available, pick on depth in the specific markets you trade and on the total cost of getting in and out.