Polymarket US, a prediction market regulated by the CFTC, has reached a milestone of $8.7 billion. As of mid-October 2026, the platform recorded a 30-day notional volume of $11.8 billion. Weekly trading volumes have grown significantly, reaching between $2.7 billion and $3.1 billion, compared to an average of $60 million per week in early 2026.
Sports contracts account for 98% of recent activity on the platform, with NFL and college football events serving as primary drivers. In August 2026, the company introduced parlay-style contracts, allowing users to combine multiple outcomes into a single position.
Separately, Coinbase and Nasdaq-listed Roundtable launched a real-time payments platform for media advertising on September 23, 2026. The system enables instant settlement of advertising revenue using the USDC stablecoin, replacing traditional fiat cycles. The initiative involves nearly 200 publishers.
Roundtable intends to migrate approximately $100 million in annual advertising business to the new rails. This effort is supported by a 10-year agreement involving 21 media brands. Additionally, former UK Prime Minister Liz Truss has joined the board of directors at Roundtable.
