NEW YORK, Nov. 8, 2011 /PRNewswire via COMTEX/ --Investment Technology Group, Inc. (NYSE: ITG), a leading agency research broker and financial technology firm, today announced that October 2011 US trading volume was 4.1 billion shares and average daily volume (ADV) was 196 million shares. This compares to 4.1 billion shares and ADV of 193 million shares in September 2011 and 3.5 billion shares and ADV of 168 million shares in October 2010. There were 21 trading days in October 2011, September 2011 and October 2010. ITG US Trading Activity Total U.S. Shares # of Trade Days Total U.S. Volume Averag...
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