Wall St edges down, S&P 500 near record

A trader looks up at a screen on the floor of the New York Stock Exchange May 1, 2014. REUTERS/Brendan McDermid

REUTERS - U.S. stocks are edging slightly lower at the open on Tuesday, with traders finding few reasons to keep pushing shares higher following a two-day rally on the S&P 500. The benchmark S&P 500 is about 0.7 percent away from a record close hit last week. Retailers are among the weakest stocks, with the Morgan Stanley Retail index down 1.6 percent, led by Dick's Sporting Goods , off 14 percent. (Reporting by Ryan Vlastelica)