Prediction markets heat up in September, with Kalshi storming past industry peer and market rival Polymarket. Kalshi recorded a surge in trading activity, repositioning itself as a US-regulated platform, the frontrunner in the sector. NFL and Sports Betting Drive Prediction Market Adoption According to Dune data, Kalshi’s market share jumped from just 5% at the start of 2025 to over 60% by September. Weekly trading volumes soared to more than $500 million following the kickoff of the NFL season, rivaling the levels usually seen only during US elections
source: https://beincrypto.com/kalshi-overtakes-polymarket-nfl-season-prediction-market/