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South Korean stocks plunge $900B amid memory chip shifts and margin debt concerns

Market News
24 Jun 2026
24/7 Wall Street
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Bearish
pluang ai news

South Korean equities lost over $900 billion in value after the Kospi dropped nearly 10%, driven by SK Hynix and Samsung shares falling over 12%. The selloff followed SK Hynix surpassing Samsung as Korea's most valuable company and concerns over record margin debt of $25 billion. The dip was triggered by SK Hynix shifting production from high-margin AI memory to commoditized DRAM, raising questions about AI demand. Despite the selloff, major AI chipmakers like Micron, NVIDIA, and AMD report strong revenue growth and spending, indicating ongoing robust demand. Alphabet is a notable exception, facing stock declines amid executive losses and slower AI model releases. Upcoming earnings from Micron and Cerebras will clarify if the Korean market drop signals a broader trend or a temporary shakeout.

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