 It was added to the National Register of Historic Places on June 16, 1978.Originally built for the Chicago Board of Trade (CBOT), it is now the primary trading venue for the derivatives exchange, the CME Group, formed in 2007 by the merger of the CBOT and the Chicago Mercantile Exchange.In 2012, the CME Group sold the CBOT Building to a consortium of real estate investors, including GlenStar Properties LLC and USAA Real Estate Company.