Samsung and SK Hynix fall by more than 10% amid renewed fears over AI spending and Chinese competition

The sell-off in AI stocks has intensified, driving South Korea’s stock market down to its lowest level in three months.

Investors continued to ditch chip stocks on Tuesday, amid rising concerns about the huge amount of borrowing among AI companies to fund their datacentre expansion plans.

The South Korean semiconductor companies SK Hynix and Samsung Electronics fell by more than 10%, dragging the country’s Kospi share index down by 11.5% to its lowest point since mid-April.

Analysts attributed the sell-off to renewed worries over AI investment spending, and competition from cheaper Chinese companies, after a report by the Information that China has begun mass production of homegrown deep ultraviolet (DUV) chip-making tools.