Woofun AI data shows that US semiconductor futures extended declines in pre-market trading on July 8. Marvell Technology fell 4.46%, Arm dropped 3.51%, Intel decreased 3.47%, Lam Research slid 3.11%, and Applied Materials declined 2.85%.

The storage sector led the downward movement, with SanDisk down 5.59% and Micron Technology down 5.28%. Western Digital fell 4.53% and Seagate Technology dropped 4.19%. Optical communication stocks also faced pressure, as Astera Labs fell 4.57%, Applied Optoelectronics dropped 4.47%, Credo decreased 4.42%, Corning slid 4.22%, Ciena declined 3.69%, and Coherent fell 3.44%.