Wall St moves higher, led by tech; Nasdaq hits record

The Nasdaq hit a record intraday high on Tuesday, with the overall gain in U.S. stocks led by technology and financial companies, as investors weighed the prospect of an interest rate hike this year. As the U.S. earnings season winds down, the focus shifts to Federal Reserve Chair Janet Yellen's upcoming speech on Friday at Jackson Hole, Wyoming, for clues on when the central bank will raise rates. Yellen's stance will either support or dismiss the perceived hawkish stand that Fed policymakers h