[U.S. stock market pre-market semiconductor stocks decline, SK Hynix down 4%] Odaily Planet Daily News: According to MSX.COM data, U.S. stock market pre-market semiconductor stocks declined, SK Hynix (SKHY.O) fell 4%, Micron Technology (MU.O) dropped nearly 5%, and NVIDIA (NVDA.O) decreased by 1.4%.