U.S. stocks opened lower, with the Dow Jones Industrial Average down 0.6%, the S&P 500 down 0.3%, and the Nasdaq down 0.5%. Micron Technology (MU.O) rose 0.4% after announcing a $10 billion investment plan to further develop U.S. memory chips. Walmart (WMT.N) fell 7% after Q2 same-store sales growth hit a six-year low and full-year earnings guidance fell short of expectations. SK Hynix (SKHY.O) rose 4% after a preliminary wage agreement was reached between labor and management. Alibaba (BABA.N) fell 4.7% after earnings, and NetEase (NTES.O) fell 0.5% after earnings.