Missouri Attorney General Catherine Hanaway issued cease-and-desist letters over sports event contracts on September 16 and 17, 2026, to Crypto.com, Novig, Kalshi, Polymarket, Robinhood, and Underdog

How governments worldwide set rules for digital assets through legislation, agency rulemaking, licensing regimes and court fights.

Futures, options, and perpetual swaps tied to digital-asset prices, letting traders hedge or lever positions and often dwarfing spot volumes.