AskSpinner Kalshi and Prediction Market Litigation Tracker dataset (2026)

35 litigation and regulatory matters over prediction markets and sports event contracts offered by CFTC-registered exchanges (including Kalshi, Polymarket, Crypto.com/Nadex and Robinhood): 31 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]