Polymarket US logs record 74 million trades in October

Polymarket US just had its busiest month on record. The platform processed more than 74 million trades in October, a 15% jump from the month before. The milestone matters because it arrives as regulated prediction markets compete for the same pool of US users. What drove the October surge The short answer is sports. Polymarket US expanded its sports contracts, with NFL and college football leading the charge. The other ingredient was product design. In August 2026, the platform rolled out combo and parlay-style products. For the uninitiated, a parlay bundles several predictions into one position. Every leg has to hit for the trade to pay out, which raises the risk and the potential reward. Those bundled products caught on quickly. In some weeks, combo and parlay-style contracts accounted for more than 50% of activity on Polymarket US. Dollar figures moved alongside the trade count. During one week in October, Polymarket US recorded notional volume of $2.82 billion. Daily and weekly notional volumes frequently reached into the hundreds of millions of dollars over the month. Notional volume measures the face value of contracts traded, not the platform’s revenue, so it captures how mu...