U.S. stocks opened higher, with the Dow Jones Industrial Average up 0.18%, the S&P 500 up 0.05%, and the Nasdaq Composite down 0.04%. Chip stocks weakened, with SK Hynix (SKHY.O) down 3.2%, Micron Technology (MU.O) down 3.16%, SanDisk (SNDK.O) down 3.28%, and Western Digital (WDC.O) down more than 2%.