Woofun AI data shows that US pre-market trading on July 23rd featured gains across semiconductor, storage, and optical communication sectors. The storage segment led performance, with Skyhigh Memory rising 6.91%, Micron Technology up 3.07%, Western Digital gaining 2.5%, SanDisk increasing 1.85%, and Seagate Technology climbing 2.6%. Semiconductor stocks also advanced, including Lam Research at 1.31%, Intel at 2.63%, Applied Materials at 1.98%, and Arm at 0.56%. Optical communication equities saw simultaneous rises, with Astera Labs up 1.39%, Applied Optoelectronics gaining 4.06%, Coherent rising 2.33%, Credo increasing 2.52%, and Lumentum Holdings climbing 3.13%.