[U.S. Stock Market Pre-Market: Semiconductor, Storage, and Optical Communication Sectors Broadly Decline, NOK Drops Over 1%] BlockBeats News, September 22, according to BIT (bit.com) market data, U.S. stock market pre-market on Tuesday saw broad declines in the semiconductor, storage, and optical communication sectors. Semiconductor sector: Lam Research Corporation (LRCX) down 0.36%, Applied Materials (AMAT) down 0.41%, Arm (ARM) down 0.1%. Storage sector: SK Hynix (SKHY) down 0.32%, Micron Technology (MU) down 0.4%, Western Digital (WDC) down 0.93%, SanDisk (SNDK) up 0.45%, Seagate Technology (STX) down 1.06%. Optical communication concept stocks: Applied Optoelectronics (AAOI) up 0.28%, Coherent (COHR) down 0.47%, Credo (CRDO) down 0.79%, Lumentum (LITE) down 0.63%, Nokia (NOK) down 1.1%.