Jon Stewart older brother, Larry Leibowitz, is COO of the NYSE “Not as many people are aware of it as should be, but Jon Stewart’s older brother, Larry Leibowitz, is the Chief Operating Officer (COO) of the New York Stock Exchange (NYSE).
Mr. Leibowitz was appointed chief operating officer in the first quarter of 2010. In this capacity, he (Leibowitz) is responsible for all the operations management, global cash execution and global listings. He previously served as group executive vice president and head of U.S. Execution and Global Technology from 2007 until 2009.
He joined NYSE Euronext in 2007, having served as managing director and chief operating officer, Americas Equities, at UBS Investment Bank.
Prior to joining UBS in 2004, Mr. Leibowitz held the position of executive vice president, co-head of Schwab Capital Markets. He currently serves on the board of National Stock Exchange of India and has also served on many industry boards and committees, among them the Market Structure Committee of the former Securities Industry Association (now SIFMA).”