Prediction Market Trading Volume Hits Record $3.5 Billion on September 19

Artemis data showed that total daily trading volume across prediction markets reached a record high of about $3.5 billion on September 19, surpassing the peak seen during the World Cup cycle. According to Odaily, Kalshi recorded about $3 billion in daily trading volume, accounting for 85.7% of the market, while Polymarket ranked second with about $447 million and a 12.8% share. Predict, Rothera, and Opinion ranked third through fifth.