Polymarket World Cup volume tops $2B in 10 days

Trading volume in the soccer category on prediction market Polymarket has surpassed $2 billion in just 10 days since the World Cup began, The Block reported. The figure represents a 300% surge compared to the period immediately preceding the tournament. Meanwhile, open interest on competitor platform Kalshi surpassed the $1 billion mark for the first time on June 18, reaching $1.16 billion. This marks a 350% increase since the beginning of the year.