[U.S. Stock Market Opens with Broad Decline Across Three Major Indexes, Storage Sector Down] BlockBeats News, October 20, according to BIT (Bit.com) market data, U.S. stock market opened with the Dow Jones Industrial Average down 0.04%, the S&P 500 Index down 0.22%, and the Nasdaq Composite Index down 0.49%. SK Hynix (SKHY.O) fell 3%, SanDisk (SNDK.O) fell 1.7%, Micron Technology (MU.O) fell 1.9%, Western Digital (WDC.O) fell 0.9%, Apple (AAPL.O) fell 0.8%, and General Motors (GM.N) fell 6%.