Wall St. higher on positive jobs data; tech stocks rebound

The three major indices were poised to end two straight sessions of losses, exacerbated on Wednesday by Federal Reserve Chair Janet Yellen's comments that equity valuations "generally are quite high". "A lot of the market is really focused on Friday's payroll report which should give us a good indication if the weak first-quarter data was really due to just weather," said David Carter, chief investment officer at Lenox Wealth Advisors in New York. Wall Street had a