世界杯推动交易量创纪录，6 月份预测市场成交量跃升 75% 至 $44.8B

Combined trading volume across the two largest prediction-market platforms surged 75% in June to $44.8 billion, a record for the sector, as the FIFA World Cup pulled a wave of event-contract activity onto Kalshi and Polymarket. The month tested whether prediction-market infrastructure could sustain trading around a single global event – and, by the volume […]