CME Center (Chicago Mercantile Exchange)
Sorry Ferris Bueller, but electronic trading has made historic trading pits obsolete.
What was once located within black-box spaces on floors four and eight — between the two 40-story highrise office towers was converted to flexible daylit open workspaces.
On both sides of the building, at Wacker Street and the Chicago River, the existing granite cladding was removed and replaced with expansive sections of curtainwall which span the structural bays and the 30-FT high space.
The high-performance insulating glass was chosen to match the color, transparency, and reflectance of the existing glazing through a process of mockups and on-site analysis. The solution improved the street-level identity along the entire Wacker Drive block and opens up views from the interior spaces to the River on the West side.