World Cup ignites prediction markets: Polymarket trading volume surges, Kalshi open interest hits new high

CoinFeed June 24 news, according to The Block, prediction market platform Polymarket's 'Soccer' category had a trading volume exceeding $2 billion in the first 10 days after the World Cup kicked off, an increase of about 300% compared to the previous 10 days, with the category's average daily trading volume rising from $53 million to about $220 million. During the same period, compliant prediction platform Kalshi's aggregate open interest exceeded $1.16 billion for the first time last week, up about 350% since the beginning of the year. The report noted that Polymarket's overall open interest remained largely flat during the World Cup, while Kalshi, regulated by the CFTC and supporting direct USD deposits, is attracting more U.S. institutions and high-net-worth users to hold long-term positions, and its positioning directly rivals compliant sports betting platforms like DraftKings and FanDuel.