Since the World Cup ended, Polymarket's weekly trading volume has dropped 56% from its June peak.

According to Odaily Planet Daily, Polymarket saw peak trading volume during the 2026 World Cup, with betting based on match scores, celebrity attendance, and player-related events. Following the World Cup, as of the end of July, the combined weekly trading volume of Polymarket's international and US versions had decreased by 56% from its June record high; Kalshi saw a decrease of approximately 25% during the same period. Polymarket's trading activity declined due to the lack of major sporting events or political events driving user demand.