U.S. stocks opened higher, with the Dow Jones Industrial Average up 0.35%, the S&P 500 up 0.43%, and the Nasdaq Composite up 0.67%. NVIDIA(NVDA.O) opened 1% higher; the company is set to report its fourth-quarter earnings after the market closes. Oracle rose 2.5% after Oppenheimer upgraded its rating to “Outperform.”