In U.S. pre-market trading, AI technology stocks experienced significant declines. SK Hynix led the downturn with a drop of over 10%. Other notable declines included AMD, Intel, and ARM, each falling more than 3%, while Lam Research decreased by over 4%. Micron Technology saw a decline of over 6%. Additionally, Western Digital, Seagate Technology, and SanDisk fell by 6.6%, 5.4%, and 6.94% respectively.