[U.S. stock market pre-market: Chip concept stocks broadly decline, Nvidia down 1.9%, AMD down 3.7%] BlockBeats news, October 15, according to BIT (Bit.com) market data, U.S. stock market pre-market chip concept stocks broadly declined, including: Nvidia (NVDA.O) down 1.9%, AMD (AMD.O) down 3.7%, Intel (INTC.O) down 3.6%, Marvell Technology (MRVL.O) down 3.7%, Applied Materials (AMAT.O) down 3%, Broadcom (AVGO.O) down 1.7%.