Kalshi, the United States-regulated prediction market platform, recorded a staggering $26 billion in trading volume during the 2026 FIFA World Cup, eclipsing the approximately $900 million generated during the 2026 Super Bowl and underscoring football’s dominance as the world’s most followed sport.

Overall prediction market bets tied to the World Cup on Kalshi and Polymarket have collectively exceeded $29 billion in total trading volume.

Polymarket and Kalshi prediction market bettors stake $5.5B combined on Spain vs Argentina, with Spain a 59% favorite.