 On April 23, 2013, the CME Group sold the north and south towers of the building at 141 W. Jackson Blvd.for $151.5 million to a joint venture between GlenStar Properties LLC and USAA Real Estate Co.The CME will retain ownership of the smaller east building at 333 S. LaSalle St. CME signed a 15-year lease for the it occupies in the two towers.