The memory chip sector is trading lower, heavily impacted by a sharp drop in SK Hynix shares in the Asian market session. The primary catalyst is a regulatory controversy surrounding the planned U.S. IPO of its NAND subsidiary, Solidigm. South Korea's financial regulator has raised concerns about a potential conflict with duplicate-listing rules, sparking fears of diluted value for existing SK Hynix shareholders and leading to a sell-off in SK Group stocks. This specific headwind is compounded by broader weakness in Asian tech stocks amid concerns over high valuations.