Thomas A. Wittman
Wittman was previously senior vice president of NASDAQ OMX and head of U.S. equities, which is part of NASDAQ OMX Group’s U.S. Transaction Services business. In that role he was responsible for the management and operations of NASDAQ OMX's three U.S. equities markets, three U.S. options markets, and the futures market. He stepped into that role in June 2013, after serving for five years as head of U.S. options. 
Wittman became president of NASDAQ OMX PHLX in July of 2008 when the NASDAQ OMX Group took over the Philadelphia Stock Exchange. In this role, he managed the NASDAQ OMX PHLX operation and oversaw the day to day responsibilities for both PHLX and NOM markets.
Wittman was formerly Senior Vice President of The Philadelphia Stock Exchange (PHLX) responsible for managing the development of software and services for the exchange. In this capacity he supported the electronic equity trading business, equity options business, PBOT futures business and the surveillance and back office systems that support those businesses. He was responsible for leading a team in transitioning the PHLX options business from a floor based specialist system to an electronic/hybrid system.
JLN Options Newsletter Interview
MarketsWiki Interview at FIA EXPO 2010
Wittman received a Bachelor of Science degree in Computer Science from Slippery Rock University of Pennsylvania. 
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