Citadel Securities avoids crypto due to regulatory uncertainty - founder
https://www.reuters.com/article/citadelsecurities-cryptocurrencies/citadel-securities-avoids-crypto-due-to-regulatory-uncertainty-founder-idUSKBN2GU24C
Ken Griffin, founder of Citadel Securities, one of the world's biggest market makers, said the firm does not trade cryptocurrencies because of the regulatory uncertainties around the digital assets.