Bloomberg reported that prediction market platform Polymarket saw a surge in trading during the 2026 World Cup, with wagers tied to match scores, celebrity attendance, and player-related events driving heavy activity across the platform. That burst of demand faded quickly once the tournament ended.
By the end of July, combined weekly trading volume across Polymarket’s international and U.S. platforms was down 56% from the record high reached in June. Rival prediction market platform Kalshi also pulled back over the same period, though its decline was smaller at about 25%.
The report said Polymarket and Kalshi had been competing aggressively in the prediction market sector during the World Cup boom. With no major sports event or political development currently supplying the same level of user demand, Bloomberg said the drop in Polymarket’s trading activity is becoming more pronounced.
Bloomberg reported that prediction market platform Polymarket posted a trading surge during the 2026 World Cup, as bets tied to match scores, celebrity attendance at games, and player-related events brought heavy volume to the platform.
That momentum faded quickly after the tournament ended. According to the report, Polymarket is now moving through a post-World Cup slowdown as interest in those markets cools.
Polymarket and Kalshi both reached elevated trading levels during the World Cup period. But by the end of July, combined weekly volume across Polymarket’s international and U.S. platforms had fallen 56% from the record high set in June. Over the same stretch, Kalshi’s decline was about 25%.
Bloomberg said Polymarket had previously been in intense competition with Kalshi in the prediction market sector. With no major sports event or political event currently driving comparable user demand, the downward trend in Polymarket’s trading activity is becoming more severe.
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