At the market's opening bell, the three principal U.S. stock indices displayed a mixed performance. The Dow Jones Industrial Average edged down slightly by 0.11%, while the S&P 500 climbed 0.07%, and the Nasdaq Composite Index rose by 0.15%. The memory sector experienced a notable upswing, with SanDisk's stock price skyrocketing over 7%. Micron Technology and Western Digital also saw their shares increase by more than 3%, while SK Hynix and Seagate Technology both posted gains exceeding 2%. Reddit's stock price witnessed a remarkable surge of over 11%, propelled by its inclusion in the S&P 500 index. Meanwhile, shares of Unusual Machines, a drone concept stock, soared over 16% amid news that the U.S. is planning to levy additional tariffs on imported drones and their components.