U.S. stock futures were little changed on Thursday night after the Dow Jones Industrial Average reclaimed the 50,000 threshold, and the S&P 500 closed above 7,500 for the first time. Investors are also keeping an eye on the ongoing summit between the U.S. and China. Dow futures fell by 10 points, or 0.02%. S&P 500 futures dipped 0.02%, and Nasdaq 100 futures rose 0.06%. Applied Materials shares climbed about 2% in extended trading after the semiconductor equipment supplier reported fiscal