As of Oct. 26, the U.S. exchange’s October tally exceeded 74 million trades, 15% above September.
The exchange offers contracts tied to sports, politics and crypto, and operates separately from Polymarket International. QCX LLC runs the U.S. venue. The Commodity Futures Trading Commission designated QCX as a contract market on July 9, 2025.
The exchange’s September comparison with Polymarket International used a different measure. The Block estimated that Polymarket U.S. recorded about $8.7 billion in contract volume that month, putting it ahead of the international venue for the first time. That estimate valued contracts at their $1 payout amount rather than the price traders paid, so it cannot be directly compared with October’s trade count.
