France leads World Cup betting odds on Polymarket and Kalshi as prediction markets hit record June volume topping $50 billion.

Trading volumes on Kalshi and Polymarket both hit record highs in June. Rothera, a new prediction market platform, was also able to manage $2 billion in volume.

Kalshi and Polymarket hit $44.8 billion in June trading volume, a 75% monthly jump driven by 2026 FIFA World Cup prediction market activity.