Svmuu News According to a post by Martins, a member of the KalshiData team, on the X platform, Kalshi has led the industry for the 14th consecutive week. The total nominal trading volume of the prediction market industry last week was approximately $6.4 billion, an 11% increase from the previous week's peak, falling just $27 million short of setting a new historical high. Kalshi once again led the industry with a nominal trading volume of approximately $3.4 billion, accounting for about 53% of the industry's total trading volume.