South Korea · Japan · Samsung · Wall Street · Crypto Briefing
The Kospi closed down approximately 5.5% as Samsung, SK Hynix and Kioxia followed Wall Street's chip slide lower
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Wall Street’s chip stocks had a bad day.
Key facts
- Samsung Electronics and SK Hynix both fell by around 7-10% during the session
- Foreign investors sold more than $6.3 billion worth of Kospi shares in October 2026
- The Kospi closed down approximately 5.5% as Samsung, SK Hynix and Kioxia followed Wall Street's chip slide lower
- Kioxia led the decline, with its shares falling about 12-13%
Summary
The Kospi closed down approximately 5.5% as Samsung, SK Hynix and Kioxia followed Wall Street's chip slide lower. AI-related shares in South Korea and Japan slid sharply after US semiconductor names sold off in the prior session. The damage in Korea was concentrated in exactly the place you would expect: memory chips. Samsung Electronics and SK Hynix both fell by around 7-10% during the session. The selloff pushed the Kospi to its lowest level since late July 2026.