Options Clearing Corporation Craig Donohue was the CEO of the Chicago Mercantile Exchange during its historic merger with the Chicago Board of Trade. He also oversaw the CME's purchases of the New York Mercantile Exchange and the COMEX. Donohue left CME Group in 2012 and has been the chief executive of The Options Clearing Corporation since 2014. Business Insider caught up with Donohue and discussed markets, high-frequency trading, blockchain, and his new role. This interview has been edited for clarity and length. Jonathan Garber: You've spent the majority of your career working around trading floors — what have you learned? Craig Donohue: I certainly saw firsthand what trading is like, what the risks are, and it's easier to see that in a trading floor environment than you do in an electronic trading environment.