US semiconductor stocks fell across the board, with the Philadelphia Semiconductor Index hitting a new low since July 29.

On October 22, US semiconductor stocks collectively declined, with the Philadelphia Semiconductor Index falling 5.67%, hitting a new low since July 29. AMD fell 7.21%, Intel fell 6.57%, Applied Materials fell 6.57%, Arm fell 6.75%, Seagate Technology fell 7.81%, Western Digital fell 6.95%, Micron Technology fell 4.29%, Nvidia fell 3.93%, TSMC fell 3.97%, Broadcom fell 3.79%, ASML fell 4.83%, Lam Research fell 9.78%, Lumentum fell 9.24%, Coherent fell 11.81%, and the 3x Long Semiconductor ETF fell 17.09%.