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Polymarket US

Polymarket US

The US-walled-off version of Polymarket, separate from the global site and regulated by the CFTC. It started reporting in late 2025, and it's almost all sports.

Volume (since Oct 2025)
contracts
Peak single day
· contracts
About this page

Polymarket US volume comes from public daily market reports normalized into category and sports-split files. Volume is contract count. Category charts use the mapped category attached to each market report row; the sports split sums categories classified as sports versus everything else.

Because the source is daily totals rather than individual trades, this page is best for scale and mix, not trade-by-trade detail.

Daily volume

Polymarket US volume since it began reporting in late 2025.

US-accessible Polymarket volume only (separate from global Polymarket). Data from the exchange's own daily bulletins, starting Oct 30, 2025. Almost entirely sports.

Product mix

Switch between the broad sports split, the daily sport mix, the all-time ranking, and the venue's own contract types without repeating the same product story in four separate sections.

Settlements

Most Polymarket US markets ask a yes/no question — will this player, team or line hit? Across settled propositions the answer is yes just % of the time.

Yes/no markets only. Moneylines, spreads and totals are excluded because their sides are two teams, two halves of a line, or Over/Under — all three settle "first side" 48–50% of the time, which is arithmetic, not a result. % of these propositions were voided and refunded, against 2.1% at DKeX.

Parlays

Multi-leg parlays — Polymarket’s “Combinatoric Athletic Outcome Contracts”, or combos — first traded 2026-08-05 and opened to all users on 2026-08-20. The earlier activity reflects the limited-access rollout; data from August 20 onward reflects the public launch.

Since : of contracts traded, of which parlay buyers staked , across trades — peaking at % of the venue's contracts on . These are $1 contracts, so both toggles are dollars: face value is what settles, stake is what the buyer paid for it at an average of ¢.

Top markets

The biggest individual Polymarket US markets, ranked by all-time contracts and searchable by name.