Polymarket US posted its busiest month on record in October, processing over 74 million trades, a rise of about 15% compared with the previous month.
Growth drivers
The surge was largely attributed to the platform’s expanded sports contracts, with NFL and college football leading activity. In August 2026, Polymarket US introduced combo and parlay‑style products that bundle multiple predictions into a single position, increasing both risk and potential reward. In several weeks, these bundled contracts accounted for more than half of the platform’s trading activity.
Trading volume
During one week in October, the platform recorded a notional volume of $2.82 billion. Daily and weekly notional volumes frequently reached into the hundreds of millions of dollars throughout the month. Notional volume reflects the face value of contracts traded, not the platform’s revenue.
User activity
Monthly active traders peaked at approximately 478,000 in October, surpassing the previous record of $8.8 billion in total volume logged in September.
Regulatory context
Polymarket US operates under the oversight of the Commodity Futures Trading Commission, allowing it to offer regulated event contracts to U.S. users. The reported activity reflects trading in these regulated contracts and does not involve native token incentives or on‑chain mechanics.
Competitive landscape
Polymarket US’s main competitor, Kalshi, reported a record $19 billion in contract volume for a single week in October, highlighting intense competition in the regulated prediction‑market space.
Outlook
The platform’s reliance on sports events, particularly football, drives seasonal spikes in activity. Observers will watch whether monthly active traders continue to rise, how trade counts evolve after the football season, and how product innovations from Polymarket US and Kalshi shape the market.
