[U.S. stock storage sector weakens, SK Hynix and SanDisk drop over 3%] Odaily Planet Daily News: According to MSX.COM data, the three major U.S. stock indices opened mixed, with the Nasdaq down 0.05%, the Dow Jones up 0.17%, and the S&P 500 up 0.03%. The storage sector weakened, SK Hynix and SanDisk dropped over 3%, and Micron Technology fell over 2%.