The three major U.S. stock indices opened lower, with the memory sector leading the declines.

On October 20, according to Bitget market data, U.S. stocks opened lower. The Dow Jones Industrial Average fell 0.04% at the open, the S&P 500 index dropped 0.22%, and the Nasdaq Composite fell 0.49%. SK Hynix (SKHY.O) declined 3%, SanDisk (SNDK.O) fell 1.7%, Micron Technology (MU.O) dropped 1.9%, Western Digital (WDC.O) fell 0.9%, Apple (AAPL.O) declined 0.8%, and General Motors (GM.N) fell 6%.