The Dark Side of the AI Rally: Why Korea And Taiwan Are Facing A Massive Stock Market Sell-Off

The global artificial intelligence (AI) boom has created enormous wealth for semiconductor giants, but it is now exposing a dangerous vulnerability in Asia’s stock markets. What analysts are calling the “AI trade trap” has led to a sharp correction in technology-heavy markets such as South Korea and Taiwan, wiping out over $1.3 trillion in market value from global semiconductor stocks within 24 hours and triggering one of the biggest market sell-offs seen in recent years.

The phenomenon stems from the extraordinary concentration of market gains in a handful of AI-linked chipmakers, including Samsung Electronics, SK Hynix and TSMC. As these stocks surged, they grew so large in global portfolios that many active fund managers were forced to reduce exposure to comply with risk limits, creating a self-reinforcing cycle of selling pressure.

Korea And Taiwan Face The Fallout

South Korea became one of the biggest beneficiaries of the AI rally. The KOSPI index had risen sharply on the back of semiconductor demand, with Samsung and SK Hynix accounting for more than half of the market’s capitalisation growth. Combined, the two companies represent over 50% of Korea’s stock market value.

However, on 8 June 2026, the KOSPI plunged 8.3% in a single session, its steepest fall since March, triggering market-wide circuit breakers. The index is now roughly 15% below its 2 June peak of 8,801.49. Samsung shares fell 10.2%, while SK Hynix dropped 7.7%, despite continued strong AI demand and fresh partnerships with Nvidia.

Taiwan has faced similar pressure. The Taiwan Weighted Index (TAIEX), which had surged 56.5% during the AI-driven rally led by TSMC and MediaTek, recently fell 3.5% amid the global technology sell-off.

What It Means For India

The AI-driven semiconductor rally helped South Korea and Taiwan overtake India in global stock market rankings earlier this month. Investors redirected capital towards markets with dominant chip manufacturers, while India lacks a comparable semiconductor giant.

Yet the recent correction also highlights India's relative advantage. Indian benchmark indices are less dependent on a handful of AI-related stocks. They are supported by broader sector participation across banking, manufacturing, consumer goods and services. While India may have missed the immediate gains from the semiconductor boom, it is also less exposed to the concentration risks now affecting Korea and Taiwan.

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Sources:

Times of India

Economic Times

Reuters