Terrence A. Duffy has served as Executive Chairman of the Board of CME Group since July 2007. Before that, he served as Chairman of the Board of CME and CME Holdings and Executive Chairman.

A member of the Exchange since 1981 and a board member since 1995, Terrence was a key player in the merger, this past July, of The Chicago Board of Trade and The Chicago Mercantile Exchange.
In 2002, he was appointed by President Bush to serve on a national summit on retirement savings, and in 2003, he was confirmed by the U.S. Senate, as a member of the federal retirement thrift investment board. He serves on the Board  of World Business Chicago, the Board of Regents for Mercy Home for Boys and Girls, the Board of Trustees of Saint Xavier University and the Illinois Agricultural Leadership Foundation.  A third-generation Irish-American, Terrence lives in Lemont, Illinois with his wife and twin sons. He attended the University of Wisconsin-Whitewater, and in 2007,  received a Doctor of Humane Letters from DePaul University.