US chip stocks fell across the board in pre-market trading, with Intel (INTC.O) down 7.6%, AMD (AMD.O) down more than 6%, Qualcomm (QCOM.O) down 5.4%, TSMC (TSM.N) down more than 4%, and Baidu (BIDU.O), Broadcom (AVGO.O), and Nvidia (NVDA.O) down about 3%.