Business 100 - 2011

Terrence A. Duffy/CME Group, Inc.

Terrence A. Duffy has been executive chairman of CME Group since 2007. Previously, he was chairman of the board of CME and CME Holdings since 2002 and executive chairman since 2006.

He serves on the board of directors of World Business Chicago, the board of trustees of Saint Xavier University, and the regional advisory board of The American Ireland Fund. He is also co-chair of the Mayo Clinic Greater Chicago Leadership Council. In 2002, Duffy was appointed by President Bush to serve on a National Saver Summit on Retirement Savings and confirmed by the U.S. Senate in 2003 to the Federal Retirement Thrift Investment Board.