FILE - In this Thursday, Dec. 6, 2012 file photo, trader Peter Tuchman works on the floor of the New York Stock Exchange, in New York. Stocks are opening mixed on Wall Street, Monday, D

 

              FILE - In this Thursday, Dec. 6, 2012 file photo, trader Peter Tuchman works on the floor of the New York Stock Exchange, in New York. Stocks are opening mixed on Wall Street, Monday, D
FILE - In this Thursday, Dec. 6, 2012 file photo, trader Peter Tuchman works on the floor of the New York Stock Exchange, in New York. Stocks are opening mixed on Wall Street, Monday, Dec. 10, 2012, after the surprise resignation of Italy's prime minister sent a jolt through European markets. (AP Photo/Richard Drew, File)