States back New Jersey in Supreme Court fight with Kalshi over sports bets
Ohio, 38 other states and Washington, DC want the Supreme Court to settle whether federal derivatives law overrides state sports-gambling rules for prediction markets.
Prediction markets
Prediction markets let people trade contracts on the outcome of future events, from elections to sports. Stories here follow the exchanges and brokers that offer these event contracts, the sportsbooks and fantasy operators moving into them, and what the CFTC, courts and US state gambling regulators decide about them.
Kalshi adds Brier scores and low-volume tags to its midterm election markets
The CFTC-regulated exchange also moves its live trade feeds higher on market pages and says it has fined and suspended four congressional candidates this year.
Glossary: Event contract · Prediction market