US stocks close: The three major indices have fallen for four consecutive weeks, Super Micro Computer plunges over 33%, and the China concept index drops nearly 3%.

Titanium Media App, March 21 — The three major U.S. stock indices all closed lower on Friday. The Nasdaq fell 2.01%, the S&P 500 declined 1.51%, both hitting their lowest levels since September 2025; the Dow dropped 0.96%, reaching its lowest point since October 2025. During trading, the Dow and Nasdaq briefly entered a “correction zone,” down 10% from their all-time highs.

On the market, the “Big Seven” tech giants all declined: Nvidia and Tesla fell over 3%, Google and Meta dropped more than 2%, Microsoft and Amazon declined over 1%, and Apple saw a slight decrease. The Philadelphia Semiconductor Index fell 2.45%, with Intel down 5%, ASML down 3.6%, Broadcom nearly 3%; Arm rose nearly 2%.

Optoelectronics stocks led the decline in the optical communication sector, with Applied Optoelectronics dropping over 14%, Lumentum down over 8%, and Coherent nearly 8%. Storage stocks also fell across the board: SanDisk dropped over 8%, Western Digital down over 7%, Seagate Technology down over 5%, and Micron Technology down over 4%. Microchip Technology plunged over 33%, hitting a new low since November 2024.

The Nasdaq China Golden Dragon Index declined 2.92%. Among popular Chinese concept stocks, Kingsoft Cloud fell over 9%, XPeng Motors dropped over 8%, NIO declined over 7%, Baidu fell nearly 4%, and Alibaba decreased nearly 2%.

Looking at the weekly performance, the Dow decreased 2.11%, the S&P 500 fell 1.9%, and the Nasdaq declined 2.07%. All three indices have fallen for four consecutive weeks, with the S&P marking its longest weekly losing streak since March 2025, and the Dow its longest since February 2023. (Kebao News)