Traders work on the floor at the New York Stock Exchange in New York, Monday, April 22, 2013. Stocks edged lower on Wall Street at the start of a big week for company earnings. About a

 

              Traders work on the floor at the New York Stock Exchange in New York, Monday, April 22, 2013.  Stocks edged lower on Wall Street at the start of a big week for company earnings. About a
Traders work on the floor at the New York Stock Exchange in New York, Monday, April 22, 2013. Stocks edged lower on Wall Street at the start of a big week for company earnings. About a third of the companies in the S&P 500, including Exxon Mobil and Apple, are reporting earnings this week. Analysts currently expect earnings to rise by 2 percent in the first quarter, down from the 7.7 percent increase in the fourth quarter, according to S&P Capital IQ. (AP Photo/Seth Wenig)