Prediction markets hit a record $5 billion during the 2026 World Cup, with trading on Polymarket and Kalshi drawing high-value wagers in real time.
2026 World Cup prediction market trading has exceeded $5 billion across Polymarket’s international exchange and US-regulated Kalshi, according to a Bloomberg News analysis of Dune Analytics data and company records. Sports event contracts are attracting larger volumes, exposing high-value wagers almost instantly. This surge in activity has turned the tournament into a public ledger of significant gains and losses.