[U.S. Stock Market Closing: SanDisk Drops Over 10%, SK Hynix Falls 8.81%] BlockBeats News, July 25, according to BIT (bit.com) market data, U.S. stocks closed on Friday with the Dow Jones Industrial Average preliminarily up 0.46%, the S&P 500 Index up 0.05%, and the Nasdaq Composite Index down 0.64%. The storage sector weakened, with SanDisk (SNDK.O) dropping 10.79%, SK Hynix (SKHY.O) falling 8.81%, and Micron Technology (MU.O) declining 6.99%. The Philadelphia Semiconductor Index fell 4.25%, Intel (INTC.O) dropped 7.89%. IBM (IBM.N) rose 3.64%, and Apple (AAPL.O) gained 3.53%.