U.S. stocks opened higher, with the Dow Jones Industrial Average up 0.13%, the S&P 500 up 0.3%, and the Nasdaq Composite up 0.6%. Chip stocks rose, with ASML (ASML.O) up 2.6%, reporting record highs in both Q4 net sales and full-year revenue; Nvidia (NVDA.O) rose 1.4%.