Prediction markets seize $50B World Cup handle from traditional books
Prediction markets processed over $50 billion during the opening month of the 2026 World Cup, signaling a structural shift in the betting industry as institutional capital and new demographics abandon traditional sportsbooks for derivatives-style platforms.
Prediction market platforms Kalshi, Polymarket and Rothera combined to process more than $50 billion in notional volume in June as the 2026 FIFA World Cup kicked off. The surge eclipsed the projected $2.8 billion to $4.3 billion handle expected across 104 matches from licensed U.S. sportsbooks. Rather than complementing the established gambling sector, these platforms actively cannibalized its user base.
Kalshi recorded $31 billion in total notional volume, a 70% increase from May, with World Cup-specific contracts reaching $22.42 billion. Its daily active users jumped 36% between June 15 and June 30. Over the same period, daily users at legacy operators plummeted from their tournament peaks, with FanDuel dropping 41%, DraftKings falling 36%, and BetMGM and Caesars declining 32%.
The user migration reflects a demographic shift. Kalshi reported a 106% increase in female users during the tournament, pushing women to 33.3% of its base compared to roughly 23% at DraftKings and FanDuel. Together, Kalshi and Polymarket captured 78.5% of betting app installs among major platforms in June, a massive leap from roughly 6% a year earlier. Crucially, sportsbook users sampled Kalshi, but Kalshi users did not open sportsbook apps.
Wall Street is treating this volume as a legitimate derivatives market rather than a retail gambling fad. Chicago trading giant DRW is building a dedicated desk to execute cross-platform arbitrage between prediction markets and traditional books. Rothera, a joint venture between Robinhood and Susquehanna International Group, launched in June and immediately captured a 7% U.S. market share with $2 billion in volume.
Polymarket’s $10.8 billion international monthly record underscores the complexity of this new landscape. While the company launched a regulated, dollar-denominated U.S. app following a $1.4 million CFTC fine and a $112 million acquisition of a licensed exchange, U.S.-linked wallets still traded $571 million on its unregulated, crypto-settled global platform via VPNs. Onchain analysis firm Allium noted this was the highest volume of any country.
The traditional sports betting industry is still generating record revenue. BetMGM's Christian Cipollini told ESPN that "this World Cup has been record-type handle stuff for us this whole time," with DraftKings reporting handle five times its 2022 levels. However, the convergence of odds between sharp international books like Pinnacle and the prediction markets proves the new entrants have achieved pricing efficiency. For investors, the World Cup demonstrated that prediction markets have evolved from a crypto novelty into a structurally competitive threat to legacy gambling operators.
