SKHX is trading 9.33% higher at $7.40 in pre-market, rebounding after a 27.28% drop to $6.77 on November 5. - Reports describe steep overnight losses in South Korean chip stocks and U.S. semiconductor shares. - The reports cite concerns that tighter AI data-center regulation could slow infrastructure investment and chip demand. - Reporting points to sector-wide and regulatory concerns, not a new SK Hynix-specific announcement; mixed U.S. index moves do not establish a broad-market reason for SKHX’s rise.