Woofun AI data shows that the downturn in the US memory chip sector has intensified, with SanDisk shares dropping 8% and SK Hynix American Depositary Receipts declining 7.8%. Seagate Technology and Western Digital both fell approximately 7%, while Micron Technology dropped over 4%, with its stock price falling 3.84%. The Philadelphia Semiconductor Index decreased 3% to close at 12,023.76 points. Broader semiconductor stocks also retreated, with Nvidia down 2.15%, TSMC down 2.73%, Broadcom down 3.6%, Advanced Micro Devices down 3.76%, Intel down 3.68%, and Lam Research down 2.92%. ASML was the sole gainer, rising 0.11%, while ARM fell 6.6%.