South Korean chip giant SK Hynix fell more than 10%, while rival Samsung Electronics dropped 7.1%. Other South Korean chip-related stocks also came under pressure: LG Innotek sank 8.1%, Seoul Semiconductor shed 7.7% and Samsung SDI declined 6.8%.
In Japan, technology investment group SoftBank tumbled 7.9%. Semiconductor testing equipment maker Advantest fell 6.9%, while chipmaking equipment suppliers Tokyo Electron and Renesas Electronics each lost 5.4%.
The declines follow a bruising session on Wall Street on Wednesday, where technology shares led broader losses after hotter-than-expected U.S. inflation data fuelled concerns that the Federal Reserve could raise interest rates further. The tech-heavy Nasdaq Composite dropped 1.88% to close at 26,692.87, while the S&P 500 fell 1.11% to 7,718.94. The Dow Jones Industrial Average slipped 0.09%.
Investors are increasingly worried that higher borrowing costs could weigh on the massive capital spending required to build out AI infrastructure. On Monday, the chief executives of Broadcom and Intel warned that financing could become a major headwind to the AI boom, with Broadcom's Hock Tan saying it could be a bigger challenge to AI expansion than shortages of chips or electricity.
Dan Ives, tech analyst at Yorkville Ives, said the sell-off reflects concerns over the cost of financing large infrastructure projects as U.S. Treasury yields climb above 5%, but argued that underlying demand for AI computing power remains robust. "Higher yields raise the cost of financing these builds, and investors are right to focus on balance sheets and contract structure, but rates are a financing question, not a demand question," Ives said in a note.
Ives maintained the pullback presented a buying opportunity, saying the AI infrastructure boom remains in its early stages. "What would change our view is a demand signal, not a rate signal," he said, pointing to potential cuts in hyperscaler capital expenditure plans, cancelled contracts or falling GPU rental prices as warning signs.