FILE- In a Wednesday, Aug. 15, 2012, file photo, Trader Frank Cannarozzo, right, works on the floor of the New York Stock Exchange. Trading volume, the number of shares bought and sol

 

              FILE- In a Wednesday, Aug. 15, 2012, file photo, Trader Frank Cannarozzo, right, works on the floor of the New York Stock Exchange.   Trading volume, the number of shares bought and sol
FILE- In a Wednesday, Aug. 15, 2012, file photo, Trader Frank Cannarozzo, right, works on the floor of the New York Stock Exchange. Trading volume, the number of shares bought and sold each day, is down by a fifth from last year, more evidence that relatively few investors are pushing up stocks as Main Street folks abandon the market. "August is usually slow, but this is terrible," says Howard Silverblatt, senior index analyst at S&P Dow Jones Indices. (AP Photo/Richard Drew, File)