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South Korea’s benchmark Kospi index sinks more than 7% as tech sell-off deepens - Seymour Tribune

Reported by Tribtown ·Ktvb ·Therepublic +4 more
Oct 14, 2026· 2 min read
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Key Takeaways
  • • South Korea's benchmark Kospi index fell more than 7% on Thursday, trading down 7.1% early at 5,584.83, as a sell-off in technology shares deepened.
  • • Samsung Electronics slid 8.2% and SK Hynix, the memory chipmaker, plunged 10.8%, making semiconductors the epicenter of the decline.
  • • Japan's Nikkei 225 fell 3.9% to 65,119.51, with SoftBank Group, an OpenAI investor, down 9.1% and Tokyo Electron down 6.3%.
  • • The regional sell-off followed a decline in U.S. stocks after hotter-than-expected inflation data, reigniting concerns about an AI-driven tech valuation bubble.
Summary
South Korea's benchmark Kospi index sank more than 7% on Thursday as a sell-off in technology shares intensified, according to the Associated Press. The index lost 7.1% in early trading to 5,584.83, with the decline concentrated in semiconductor and AI-linked names. Samsung Electronics fell 8.2%, while South Korean memory chipmaker SK Hynix plunged 10.8%.

The selling spread across Asian markets. Japan's Nikkei 225 fell 3.9% to 65,119.51. SoftBank Group, an investor in OpenAI, tumbled 9.1%, and chip equipment maker Tokyo Electron dropped 6.3%. The AP attributed the regional move to a sell-off in U.S. technology stocks that followed hotter-than-expected inflation data.

An AFP report on the broader Asian sell-off described renewed concerns over a potential AI-driven tech bubble as a driver of the decline, noting the Kospi had fallen more than 5% at that point in the session. Market commentary cited in coverage framed the move as a repricing of AI-related equity premiums, though these views are interpretive rather than primary reporting.

The figures cited reflect early-session trading and may differ from final closing levels.

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Sources

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