Traders on Polymarket have poured more than $2.6 billion into a single market betting on which nation lifts the 2026 World Cup trophy, the platform's largest sports wager ever.
The milestone surfaced Thursday, when tallies reported across sports media showed the World Cup Winner contract clearing $2.6 billion midway through the group stage. The contract has run since July 2025. It now towers over anything the platform has hosted outside a national election.
France leads the field near 18 percent, the equivalent of about 18.5 cents per share. The 2018 champion opened with a 3-1 win over Senegal and meets Iraq next week, leaving it a clear path to the round of 32.
Spain tells a different story.
The Euro 2024 winner sits second around 14 percent after a flat 0-0 draw with Cape Verde, a result that cooled the favorites and handed bargain hunters a cheaper entry, with live prices still posted on the platform's market page. Argentina, the defending champion, and England round out the top tier, while Brazil hovers as a long shot near 7 cents.
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Brokerage Bernstein tracked combined World Cup volume on Polymarket and Kalshi rising from $2.2 billion on Jun. 11 to $4.8 billion a day later. The pace cleared Super Bowl prediction-market activity within 48 hours.
Kalshi alone logged a record week near $7 billion across all its markets, a rise of roughly 13 percent that the tournament largely drove. The two venues now anchor a betting boom fed by an expanded 48-team field, a slate of 104 matches and kickoffs that fall during peak US viewing hours.
Regulated sportsbooks across the country could handle as much as $4.3 billion before the final.
The climb has been steady through the group stage. Individual nation contracts have each drawn tens of millions, and one trader staked more than $3 million on the Netherlands to beat Japan, a wager that pushed that match past $26 million on its own.
Daily volume around marquee fixtures has at times cleared $100 million, a scale that frames the World Cup as Polymarket's biggest event short of a presidential race.
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