Wall Street opens up, Nasdaq set to extend record

Wall Street opened up on Friday as strong results from tech behemoths Google, Amazon and Microsoft set the Nasdaq Composite on track to extend its record close set the previous session. Amazon shares soared as much as 15.6 percent to a lifetime high of $451 after the e-commerce company's revenue came in above estimates on Thursday. Google gained 2.8 percent to $573.15 after reporting higher quarterly revenue and profit and Microsoft added 6.6 percent to $46.22 after it topped Wall Street es