CryptoSlate
Polymarket's World Cup winner market has crossed $3.3 billion in cumulative trading, dwarfing this year's Super Bowl contracts at roughly $1.4 billion and putting the tournament on track to pass $10 billion in total wagers before the final on July 19, per Bernstein projections. France leads the board at a 23% implied chance, with Argentina close behind at 21%, Spain at 11%, England at 10% and Brazil at 6%, while about $1.6 billion, roughly two-thirds of winner-market volume, sits on teams priced at 1% or less.
Why it matters
The split shows prediction markets behave differently from sportsbooks. In a sportsbook, odds reset around new lines; on Polymarket, contracts keep trading until settlement or until holders exit, so money that piled in early on longshots like Ivory Coast ($101M), Mexico ($97M), Egypt ($90M) or Cape Verde ($87M) stays on the books long after the teams are priced out. High volume on a contract therefore signals how traders moved through the tournament, not necessarily where current conviction sits. A basket of France, Argentina, Spain, England and Portugal costs about 72 cents combined and pays $1 if any one of them wins, a clean read on how concentrated real confidence has become.
Market impact
The World Cup is the most visible event in a much larger prediction-market cycle. Andreessen Horowitz reported $14.5 billion in weekly trading across the sector last week, with $3.6 billion in non-sports volume on Kalshi and Polymarket combined, an 18x increase from July 2025, and record open interest of $1.6 billion for a third straight week. That growth is now running straight into a CFTC probe into Polymarket, first reported by the Wall Street Journal, which reopened after the platform resumed limited US operations following its 2022 enforcement action. The timing matters: regulators are studying the same venues that just printed record volumes, and consumer-protection questions about event contracts versus gambling are back on the front burner.
Frequently asked questions
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Why does so much volume sit on World Cup longshots priced at 1% or less?
Prediction-market contracts keep trading until settlement, unlike sportsbook lines that reset, so early longshot positions on teams like Ivory Coast ($101M) and Mexico ($97M) remain on the books even after those teams are priced out.
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How large is Polymarket's World Cup market compared with the Super Bowl?
Polymarket's World Cup winner market has crossed $3.3B in cumulative trading versus about $1.4B for this year's Super Bowl, with Bernstein projecting total World Cup wagers could surpass $10B by the July 19 final.
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Who are the favorites on the Polymarket World Cup board?
France leads at a 23% implied chance, followed by Argentina at 21%, Spain at 11%, England at 10% and Brazil at 6%, with France also leading the to-reach-the-final market at 39%.
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How big has the broader prediction-market sector become?
Andreessen Horowitz reported $14.5B in weekly trading across the sector last week, with $3.6B in non-sports volume on Kalshi and Polymarket combined, an 18x jump from July 2025, and record open interest of $1.6B.
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What is the status of the CFTC's Polymarket probe?
The CFTC has opened an investigation into Polymarket, first reported by the Wall Street Journal, reopening questions about event-contract oversight after the platform resumed limited US operations following its 2022 enforcement action.
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