US STOCKS-Wall St lower as IBM, United Tech results weigh
* IBM down after revenue falls for 13th straight quarter
* United Technologies cuts full-year profit outlook
* Apple, Microsoft, Yahoo to report results after the close
* Indexes down: Dow 1.13 pct, S&P 0.45 pct, Nasdaq 0.18 pct (Updates to late afternoon, changes byline)
By Chuck Mikolajczak
July 21 (Reuters) - U.S. stocks fell on Tuesday in the wake of results from IBM and United Technologies which curbed some optimism over earnings season while investors awaited quarterly profits from tech giants including Apple and Microsoft.
The Dow fell over 1 percent, with IBM and United Tech contributing around 126 points to the drop. The decline put the blue-chip index on track for its biggest percentage decline in about two weeks.
IBM's shares were down 6.2 percent to $162.42, a day after the company's revenue dropped for the 13th consecutive quarter and fell short of analyst's expectations.
Fellow Dow component United Technologies tumbled 7.6 percent to $102.06 and was the worst performer on the Dow after the company cut its full-year profit outlook. Continuación...