[Record High for Daily Trading Volume in Global Prediction Markets, Kalshi Dominates with Over 80% Share] Odaily Planet Daily reports that Artemis data shows the daily trading volume in global prediction markets reached a new all-time high on September 19, hitting approximately $3.5 billion, even surpassing the peak figures during the World Cup period. Among them, Kalshi's daily trading volume was about $3 billion, accounting for 85.7%; Polymarket's daily trading volume was approximately $447 million, ranking second with a market share of about 12.8%; Predict, Rothera, and Opinion ranked 3rd to 5th, respectively.