[U.S. Stock Market Opens: Neocloud, Storage, Optical Communication, and Semiconductor Stocks All Rise, CRDO Up Over 8%] BlockBeats News, October 21, according to BIT ((bit.com)) market data, U.S. stock market opened with broad gains in Neocloud, storage, optical communication, and semiconductor stocks. Neocloud stocks saw an overall increase. TeraWulf (WULF) rose 6.66%, Hut 8 (HUT) rose 5.78%, Cipher Digital (CIFR) rose 5.74%, Applied Digital (APLD) rose 5.35%, IREN rose 5.32%, and Nebius (NBIS) rose 4.05%. Storage stocks also strengthened, with Seagate Technology (STX) up 5.55%, SK Hynix (SKHY) up 4.08%, Western Digital (WDC) up 3.98%, SanDisk (SNDK) up 3.77%, and Micron Technology (MU) up 3.48%. Optical communication concept stocks all rose, with Credo (CRDO) up 8.38%, Lumentum (LITE) up 5.84%, Applied Optoelectronics (AAOI) up 4.59%, Ciena (CIEN) up 4.39%, Marvell Technology (MRVL) up 4.01%, and Coherent (COHR) up 3.88%. Most semiconductor stocks also gained, with Marvell Technology (MRVL) up 4.01%, AMD up 3.44%, ASML up 3.07%, Arm (ARM) up 2.46%, and NVIDIA (NVDA) up 2.29%.