John T. Geldermann
John Geldermann was a Chicago-based back-office pioneer, founder of Geldermann & Co. and a former chairman of the Chicago Mercantile Exchange. He died in 2006 at the age of 80. 
In 2005, Geldermann was inducted into the Futures Industry Association's Futures Hall of Fame, which was established in 2005 to commemorate outstanding contributions to the global futures and options community.
Geldermann pioneered the automation of order processing, founding Computer Information Service in 1967 as a back-office service bureau for the FCM community. He was also an early proponent of electronic trading. As a member of the CME’s strategic planning committee in the mid-1980s, he worked with Leo Melamed and others to help develop the Globex electronic trading platform.
He was also the founder of Geldermann & Co, a prominent Chicago futures firm. After serving in the U.S. Army from 1943 to 1945, he became a member of the Chicago Board of Trade in 1946. He joined the Chicago Mercantile Exchange in 1961 and played an important role in that exchange’s leadership for many years, serving as chairman from 1974-1975, and again in 1989.
Geldermann is credited with helping to turn the Futures Industry Association into a truly national organization. He joined the FIA board of directors, and served as its chairman in 1977 and 1978.
Geldermann was elected chairman of the CME for a second time in 1989, beating Laurence Rosenberg, after having served as chairman in the 1970s. He replaced Jack Sandner, who had been chairman for three consecutive years, the maximum the CME rules then allowed.
Geldermann was chairman when the FBI sting occurred in 1989 and worked with CME Executive Committee Chairman Leo Melamed to address the reputational damage it created. He was appointed the chairman of a blue ribbon committee to investigate and address the issues raised by the sting.
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