Nine European gambling regulators are taking coordinated action against unlicensed prediction‑market platforms during the 2026 FIFA World Cup, just as Kalshi deepens its ties with football’s biggest teams and stars. On June 17, authorities from Belgium, France, Germany, Italy, the Netherlands, Poland, Portugal, Spain and Switzerland issued a joint statement targeting platforms that offer “event‑based contracts” without a national gambling licence. Their concerns focus on 24/7 access, weak age‑verification and identity checks, and the absence of built‑in stake or time limits.
Regulators also warned sports federations, leagues and teams to verify the legality of any promotional deals before signing, raising the stakes for operators like Kalshi. The warning landed just as Kalshi became an official World Cup sponsor of the Argentine Football Association on June 10, securing rights to use the national team crest and live match data from Genius Sports. Four days later, the platform activated the partnership with a paid Instagram post by Lionel Messi to his 500‑million‑plus followers and added the Croatian Football Federation with Luka Modrić as ambassador.
Europe is already enforcing its position. Spain ordered internet providers on May 26 to block both Kalshi and Polymarket while investigating whether their products constitute unlicensed gambling; France, the Netherlands and Portugal have begun similar proceedings. The regulatory pushback coincides with a historic boom in prediction‑market trading — volumes reached $8.6 billion in April, with Kalshi overtaking Polymarket as investors poured capital into both platforms.
Underneath the licensing clashes, a structural shift is reshaping how sports outcomes are traded. Users increasingly move from fixed‑odds sportsbooks toward continuous order‑book pricing, allowing real‑time hedging, arbitrage and dynamic exposure. During major football events, daily volumes have surged past $4 billion, with liquidity providers tightening spreads and arbitrageurs linking sports‑betting and prediction‑market prices. At the same time, the U.S. Commodity Futures Trading Commission (CFTC) has opened a consultation on how to classify sports‑related event contracts, while state‑level tax proposals add further cost pressures, creating a fragmented global compliance landscape. The World Cup is now the most visible stress test for prediction markets, where brand ambition, sports partnerships and licensing rules collide under unprecedented live‑match attention.
