Shares of U.S. semiconductor companies fell in pre-market trading. Nvidia (NVDA.O) fell 0.8%, Broadcom (AVGO.O) fell 1.9%, AMD (AMD.O) fell 3.1%, Intel (INTC.O) fell 3.3%, and Qualcomm (QCOM.O) fell 2.4%. Micron Technology (MU.O) fell 4.9%, SanDisk (SNDK.O) fell 5%, Seagate Technology (STX.O) fell 3.9%, and Western Digital (WDC.O) fell 5.3%.