Global equity markets declined Tuesday as investors sold off technology stocks, leading to a sharp plunge in South Korean shares [1, 2].
The rout signals a shift in investor confidence regarding the valuation of artificial intelligence. As the primary drivers of recent market growth, any significant correction in chip and memory stocks threatens to drag down broader global indices.
In South Korea, the Kospi index tumbled about 10% [4]. The volatility was so severe that trading on the index was halted for 20 minutes [5]. This decline reflects a broader trend of investors unwinding positions in the region's heavy concentration of semiconductor companies.
U.S. markets also felt the impact of the sell-off. The Nasdaq 100 index, which is heavily weighted toward large tech firms, fell 2.69% [3]. The S&P 500 index decreased by 1.26% [1].
Performance in other U.S. indices was mixed. While some reports indicated the Dow Jones Industrial Average advanced, other data showed it down 0.30% [2]. Additionally, September E-mini S&P futures dropped 1% [1].
Market analysts said the volatility is due to renewed doubts about the sky-high valuations of AI-driven stocks [3, 1]. Investors appear to be questioning whether the current prices of chip and memory stocks are sustainable relative to their actual earnings growth.
“South Korea's Kospi index tumbled about 10%”
This sell-off suggests a transition from the 'hype' phase of artificial intelligence to a period of fundamental valuation. Because the Kospi and Nasdaq 100 are so heavily reliant on semiconductor performance, these indices act as a bellwether for the global tech economy. A sustained correction could indicate that the AI-driven bull market is cooling.
