[U.S. Stock Market Pre-Market: Semiconductor Stocks Continue Recent Decline, SK Hynix Down 1.9%] BlockBeats News, July 29, according to BIT (Bit.com) data, U.S. stock market pre-market semiconductor stocks continued their recent decline. SK Hynix (SKHY.O) fell 1.9%, Micron Technology (MU.O) fell 1.6%, SanDisk (SNDK.O) fell 2.3%, and NVIDIA (NVDA.O) fell 0.3%.