US STOCKS-Wall St falls, snapping three-day rally; Wal-Mart weighs
* Wal-Mart falls after tepid sales forecast
* IBM jumps on Morgan Stanley upgrade
* Oil pulls back after U.S. stockpiles rise
* Indexes fall: Dow 0.25 pct, S&P 0.47 pct, Nasdaq 1.03 pct (Updates with close of U.S. markets)
By Lewis Krauskopf
Feb 18 (Reuters) - Wall Street closed lower on Thursday, ending a three-day winning streak, as Wal-Mart shares dragged on the market after a lackluster earnings report and oil prices pulled back.
Eight of the 10 major S&P sectors finished negative, led by a 0.9 percent decline in energy, which had helped drive the recent rally.
Wal-Mart Stores Inc fell 3 percent after the world's largest retailer reported a lower quarterly profit and gave a tepid sales outlook. The stock was the biggest percentage loser in the Dow index.
Declines were limited by IBM, which rose 5 percent after Morgan Stanley upgraded the stock to "overweight." Continuación...