Investor have long since passed, replaced by its role as a leading financial trading center that is home to the Chicago Mercantile Exchange, also known as the Merc, and the Chicago Board of Trade. On Wednesday, Terence Duffy, chairman of CME Group Inc., which owns the two institutions as well as the New York Mercantile Exchange, and Chief Financial Officer James Parisi announced the financial giant is considering moving operations and jobs out of the state in response to massive increases in state taxes.V7iunc7hTGg