BlockBeats News, August 20th, according to BIT market data, at the opening of the US stock market, the Dow Jones fell by 0.6%, the S&P 500 Index fell by 0.3%, and the Nasdaq fell by 0.5%.

Micron Technology (MU.O) rose by 0.4% as the company increased its investment in US memory research, planning to invest $10 billion over ten years. Walmart (WMT.N) fell by 7% as its Q2 same-store sales growth rate hit a six-year low, and its full-year profit guidance was below expectations. SK Hynix (SKHY.O) rose by 4% as labor reached a preliminary wage agreement. Alibaba (BABA.N) dropped by 4.7% after its earnings report.