The Philadelphia Semiconductor Index fell further to 4.2%, with AMD (AMD.O) down more than 8%, Marvell Technology (MRVL.O), Broadcom (AVGO.O), and Arm (ARM.O) down more than 5%, Intel (INTC.O) down 4.4%, Micron Technology (MU.O) down 4%, and Nvidia (NVDA.O) down 2.5%.