Shares of Samsung Electronics and SK Hynix fell more than 12% Tuesday as investors dumped AI-linked stocks [1].
The sharp correction reflects growing anxiety over stretched valuations in the semiconductor sector, which has driven a record rally in South Korean markets. Because these companies are central to the global artificial intelligence supply chain, their volatility signals a potential shift in investor appetite for high-growth tech assets.
The decline of the chipmakers contributed to a broader collapse of South Korea's KOSPI index. The market dropped 9.99%, or 910.71 points, in a single day [2]. This rapid descent triggered an automatic trading halt that lasted 20 minutes [3].
Market analysts said the rout was due to profit-taking and fears that AI-linked stocks had become overvalued [4, 5]. The sell-off was not isolated to Seoul, as broader Asian tech exchanges also experienced slides amid similar valuation concerns [4].
Samsung and SK Hynix remain the leading AI-linked chipmakers in South Korea [6]. Their combined influence on the KOSPI means that any correction in their share prices typically creates significant swings for the national index. The scale of Tuesday's plunge represents one of the most volatile sessions for the index following its recent record-breaking run [7].
Investors are now monitoring whether this is a temporary correction or a longer-term trend of cooling demand for the hardware fueling the AI boom [4].
“Samsung and SK Hynix shares fell more than 12%”
This market correction suggests a pivot from blind optimism toward a more critical assessment of AI productivity. When the two largest chipmakers in South Korea see double-digit losses simultaneously, it indicates that the market may have priced in future AI growth too aggressively, leading to a sharp realignment of asset prices.



