Global stock markets experienced significant declines on Tuesday, heavily influenced by losses in tech companies. The firms leading in artificial intelligence and chip production, which had previously driven markets to all-time highs, saw their shares plummet. This downturn, initially occurring in the United States on Monday, quickly affected markets worldwide, especially in Asia.
Major U.S. tech companies like Alphabet and Amazon continued their downward trend in premarket trading on Tuesday, compounding the losses from the previous day. SpaceX, after an initial surge post-IPO, dropped over 20% in value within the last three trading sessions, yet its stock still trades higher than its initial offering price.
South Korea experienced the most significant decline in Asia, where its stock market has been the top performer since early 2025. The nation’s main Kospi index plummeted by 10%, leading to a 20-minute trading halt as triggered by the exchange’s protocol.
The rise in South Korea’s stock market over the past year has largely been driven by its leading memory chip producers, Samsung Electronics and SK Hynix. These companies’ semiconductors play a crucial role in AI systems. As their stock prices soared, they attracted retail investors, resulting in large, sudden market fluctuations. On Tuesday, both companies saw their shares drop by over 12%.
Alexander Redman, the chief equity strategist at CLSA brokerage, commented on this trend during an investor conference in Seoul. “In the past, such substantial single-day declines would incite panic. Now, it’s viewed as a regular market characteristic,” Redman remarked, acknowledging the unsettling volatility.
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