U.S.-listed chip and storage stocks moved higher before the market opened on Aug. 25, according to BIT (bit.com) market data. Nvidia rose 1.1%, Intel gained 2.29%, AMD climbed 1.77%, Micron Technology added 1.7%, SanDisk increased 1.8%, Seagate Technology advanced 1.5%, Western Digital rose 1.82% and SK hynix ADR gained 2.11%. An ADR (American depositary receipt) represents shares of a foreign company traded in the U.S.