Trader Peter Costa, center, works on the floor of the New York Stock Exchange Monday, Feb. 25, 2013. Stocks are opening higher on Wall Street, following the first weekly decline in the

 

              Trader Peter Costa, center, works on the floor of the New York Stock Exchange Monday, Feb. 25, 2013. Stocks are opening higher on Wall Street, following the first weekly decline in the
Trader Peter Costa, center, works on the floor of the New York Stock Exchange Monday, Feb. 25, 2013. Stocks are opening higher on Wall Street, following the first weekly decline in the S&P 500 index this year. (AP Photo/Richard Drew)