Global Stock Markets Experience Steep Declines Amid Tech Sell-Off

Global stock markets recorded significant declines on Tuesday, with technology companies leading the downturn. The sell-off began in the United States, but its effects were felt worldwide, particularly in Asia.

For some time, tech firms at the forefront of artificial intelligence (A.I.) and chip manufacturing have driven markets to new heights. This influence was largely due to their substantial contributions to market indexes. As these companies’ shares began to drop, the repercussions spread globally.

Major U.S. technology giants such as Alphabet and Amazon saw continued losses in premarket trading on Tuesday, following declines the previous day. SpaceX also experienced a drop, with its shares having lost over 20% of their value in the past three sessions. Despite this, its value stays above the initial public offering price.

In Asia, South Korea faced the most significant impact. Known as the top-performing stock market globally since 2025, South Korea’s Kospi index plummeted by 10%. This fall led to a 20-minute trading halt imposed by the exchange operator.

The surge in South Korea’s stock market over the last year heavily relied on its paramount memory chip manufacturers, Samsung Electronics and SK Hynix. These companies have been crucial in supporting A.I. systems, with their shares previously climbing rapidly. As a result, retail investors engaged heavily, causing substantial and unpredictable market fluctuations. On Tuesday, shares of both companies decreased by over 12%.

Alexander Redman, chief equity strategist at CLSA, remarked on the market’s volatility during a speech at an investor conference in Seoul. Redman expressed concern about these fluctuations, noting that such dramatic drops would have once caused panic. Today, however, they are considered typical aspects of the current market environment. “It’s unnerving that you’re seeing this kind of volatility,” Redman stated. “It just feels very, very frothy.”