SEOUL, May 4 (Reuters) - Shares of SK Hynix extended gains to 12% on Monday, driven by foreign buying, after big U.S. tech firms last week reported robust earnings and reaffirmed their investment plans for artificial intelligence data centers.
SK Hynix outperformed bigger rival Samsung Electronics, which has been weighed down by the risk of a potential strike by unionised workers demanding a bigger share of the company's AI-driven profits.
(Reporting by Hyunjoo Jin; Editing by Himani Sarkar)
