Trader William Lawrence works on the floor of the New York Stock 

Trader William Lawrence works on the floor of the New York Stock Exchange, Friday, Jan. 25, 2013. Stocks are opening higher on Wall Street ahead of what is expected to be more upbeat data on housing from the government. (AP Photo/Richard Drew)
Associated Press
Trader William Lawrence works on the floor of the New York Stock Exchange, Friday, Jan. 25, 2013. Stocks are opening higher on Wall Street ahead of what is expected to be more upbeat data on housing from the government. (AP Photo/Richard Drew)
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