The three major US stock indexes closed lower, with the semiconductor, storage, and optical communication sectors leading the decline. The Philadelphia Semiconductor Index plummeted by 4.65%.

BlockBeats News, July 8th, according to BIT (bit.com) market data, the United States resumed military strikes against Iran and imposed oil sanctions. As a result, the three major U.S. stock indexes collectively fell, with the Dow down 0.25%, the Nasdaq down 1.16%, and the S&P 500 down 0.45%. The semiconductor and storage sectors declined, with the Philadelphia Semiconductor Index falling 4.65%, and SpaceX dropping nearly 7% to hit a new post-IPO low.

The U.S. stock storage sector saw the largest decline, with Western Digital (WDC) down 7.86%, Seagate Technology (STX) down 4.68%, Micron Technology (MU) down 4.71%, and SanDisk (SNDK) down 7.26%.

Semiconductor stocks generally trended lower, with Lam Research (LRCX) down 6.87%, Applied Materials (AMAT) down 6.46%, Marvell Technology (MRVL) down 7.45%, KLA Corporation (KLAC) down 7.22%, AMD down 6.51%, and Intel (INTC) down 9.66%.

Optical communication stocks also faced pressure in pre-market trading, with Astera Labs (ALAB) down 11.12%, Ciena (CIEN) down 3.44%, Coherent (COHR) down 6.43%, Lumentum (LITE) down 4.42%, and Corning (GLW) down 4.84%.