NEW YORK (Reuters) - U.S. stocks fell at the open on Tuesday ahead of services sector data, putting the S&P 500 on pace to halt a two-day streak of gains.
The Dow Jones industrial average fell 66.79 points, or 0.43 percent, to 15,572.33, the S&P 500 lost 5.88 points, or 0.33 percent, to 1,762.05 and the Nasdaq Composite dropped 12.698 points, or 0.32 percent, to 3,923.892.
(Reporting by Chuck Mikolajczak; Editing by Bernadette Baum)