Polymarket trading slumps after World Cup betting peak
Polymarket's trading activity has dropped sharply after heavy volume during the 2026 World Cup, which Bloomberg describes as a 'terrible comedown' for the platform. The tournament had driven bets on match scores, celebrity attendees, and Cristiano Ronaldo's reactions. Separately, Polymarket listed 331 active markets for the August 12, 2026 UEFA Super Cup and Paris Saint-Germain. The World Cup final alone generated billions in volume across Kalshi and Polymarket, according to Dayton Daily News.
The slump tests whether event-contract platforms can sustain volume outside megavents. Polymarket just proved it can capture billions on a single match, but that match ended. The 331 UEFA Super Cup markets launching the same day show the platform racing to replace World Cup flow with soccer continuity.
Yet the timing is brutal: Kalshi and Polymarket are already defending sports contracts on five fronts, including a Senate bill that could ban them outright and state gambling suits that pierced federal preemption in Wisconsin, Utah, and New York. If the next tournament does not match World Cup scale, platforms may face both shrinking revenue and multiplying legal bills with less cash to pay them. The trough between megavents is where business models break.