Career
He formally held the positions of President and Chief Executive Officer of the Chicago Mercantile Exchange (1985–1997) and was the Executive Vice President at the American Stock Exchange (1979–1982).
He formally held the positions of President and Chief Executive Officer of the Chicago Mercantile Exchange (1985–1997) and was the Executive Vice President at the American Stock Exchange (1979–1982).
He is a member of the Committee on Capital Markets Regulation and previously served as Chairman of the International Options Markets Association (2006–2008).