AskSpinner Kalshi and Prediction Market Litigation Tracker dataset (2026)

36 litigation and regulatory matters over prediction markets and sports event contracts offered by CFTC-registered exchanges (including Kalshi, Polymarket, Crypto.com/Nadex and Robinhood): 32 US court and regulatory matters (U.S. Supreme Court, federal circuit and district courts, state courts, CFTC actions and rulemakings) and 4 non-US regulator positions, as of October 31, 2026. Each row links to a primary source the AskSpinner news desk opened itself. Companion page (updated weekly): https://askspinner.com/news/kalshi-prediction-market-lawsuits-tracker Column definitions, methodology and suggested citation are in the included README. Claims in complaints are allegations. Corrections: [e-mail] Version 2026-11-01: 37 rows (33 US, 4 non-US). New: PML-033 People v. KalshiEX (S.D.N.Y.), the New York Attorney General's Executive Law 63(12) petition, with the Oct. 30, 2026 joint letter on the revised investigative subpoena.