U.S. stocks opened lower, with the Dow Jones Industrial Average down 0.3%, the S&P 500 nearly flat, and the Nasdaq Composite up 0.2%. Storage-related stocks rose, with Micron Technology (MU.O) up 3.6% and SanDisk (SNDK.O) up 4.5%. Alphabet (GOOG.O) rose 0.2%, with Berkshire Hathaway continuing to increase its stake in Alphabet in the second quarter. Alibaba (BABA.N) rose 1.6% after selling its gaming business for $1.5 billion.