Prediction markets hit record $50.6B July volume

Prediction markets recorded $50.59 billion in combined monthly trading volume in July, setting a new high across Kalshi, Polymarket and Polymarket US, according to data published on Aug. 3. Summary Prediction markets generated $50.6 billion in July volume, rising 7.8% from June’s previous combined total. Kalshi led at $37.7 billion; Polymarket US volume climbed 54% to $5 billion during July. Open interest fell to $1.2 billion after the World Cup ended, signaling weaker post-tournament activity. The total rose 7.8% from the dashboard’s revised June figure of $46.95 billion. Kalshi remained the largest venue with $37.7 billion, while Polymarket’s international and U.S. platforms generated a combined $12.9 billion. The figures measure taker notional volume rather than exchange revenue or money deposited by customers. Polymarket, Polymarket US, and Kalshi Reach Record Monthly Volume of $50.6 Billion in JulyPolymarket, Polymarket US, and Kalshi posted combined monthly volume of $50.6 billion in July, an all-time high. Polymarket US volume rose 54% to $5 billion, while Polymarket volume fell… pic.twitter.com/Ujb69YDyAo— Wu Blockchain (@WuBlockchain) August 3, 2026 Prediction market volum...