CoinDesk reported:
The three firms face a number of accusations based on their use of blockchain-based protocols and smart contracts to function as trading platforms, according to the CFTC. The U.S. derivatives regulator is ordering Opyn, ZeroEx, and Deridex to cease those violations and pay penalties of $250,000, $200,000, and $100,000, respectively. The companies agreed to these terms to settle the charges.