US STOCKS-Wall St to open up on tech earnings, Nasdaq to extend record
* Xerox slumps as it cuts forecast
* Comcast shares up after it calls off Time Warner Cable merger
* Amazon shares jump after revenue beats estimates
* Futures up: Dow 19 pts, S&P 4 pts, Nasdaq 31 pts (Adds details, comment, updates prices)
By Tanya Agrawal
April 24 (Reuters) - U.S. stocks were set to open higher on Friday as strong results from tech behemoths Google, Amazon and Microsoft set the Nasdaq Composite on track to extend its run after surpassing on Thursday a 15-year-old record.
The S&P 500 touched a record intraday high on Thursday, while the Nasdaq closed at 5,056.06, surpassing its record set in March 2000, just before the dot-com bubble burst.
"I think we're on more solid footing than the last time," said Gordon Charlop, managing director at Rosenblatt Securities in New York.
"There could be some vulnerability in some of the tech names, given the change in the value of the dollar, but I don't get the same sense that we're overvalued at these levels the way we were the last time we got here." Continuación...