U.S. stocks opened higher on Friday after a weaker-than-expected jobs report increased expectations that interest rates would remain unchanged this month. The report drove a larger decline in Treasury yields, while lower oil prices also improved investor sentiment. At 9:30 a.m. ET, the Dow Jones Industrial Average rose 340.08 points, or 0.67%, to 51,266.64; the S&P 500 gained 68.27 points, or 0.89%, to 7,734.72; and the Nasdaq Composite advanced 341.47 points, or 1.27%, to 27,216.91.