NEW YORK, July 28 (Reuters) - U.S. stocks fell on Tuesday after a handful of companies, including Viacom Inc and Office Depot Inc, posted disappointing quarterly results and investors sought more evidence of an economic rebound.
The Dow Jones industrial average was down 43.53 points, or 0.48 percent, at 9,064.98. The Standard & Poor's 500 Index was down 6.25 points, or 0.64 percent, at 975.93. The Nasdaq Composite Index was down 9.06 points, or 0.46 percent, at 1,958.83.