Prediction markets just crushed traditional sportsbooks in a massive $50 billion World Cup breakout
Prediction markets like Kalshi and Polymarket have significantly outperformed traditional sportsbooks in trading volume during the 2026 World Cup. The growth highlights a shift in betting behavior toward event-based derivatives that cover politics and economic data alongside sports.
Why it matters
The massive surge in prediction market volume signals a potential disruption to the traditional gambling industry and raises questions about the regulatory landscape for event-based financial derivatives.
The numbers are stark. Kalshi posted $31 billion in total notional trading volume in June , a more than 70% jump from May — with sports contracts accounting for around 85% of its trading, per Dune analytics. The company told CoinDesk that World Cup-specific volume on its platform has now reached $22.42 billion. Polymarket's international exchange set a new monthly record at $10.8 billion overall trading volume, while its regulated U.S. platform separately logged $3.5 billion, nearly double May's total. Rothera, a joint venture between Robinhood and Susquehanna International Group that only launched in June, processed $2 billion in its debut month and already accounts for 7% of the U.S. prediction market, according to Bank of America.
The article presents data-driven trends and market figures objectively, focusing on the growth of the sector rather than taking a stance on the platforms.
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