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KOSPI Plunges 8%, Circuit Breaker Triggered

On Nov. 6, the KOSPI plunged more than 8% in early trade, prompting the Korea Exchange to activate a circuit breaker and halt trading at 9:03 a.m. for 20 minutes, amid a tech sell-off and foreign selling intensified by U.S. mega-cap tech losses. The index fell below 5,000, with the KOSDAQ also down 5-6%, following a previous day's plunge below 5,400 on 'Blue Wave' fears over AI and tech regulations. Yonhap reports the rout came after U.S. midterm elections, with Business Korea citing extreme panic from the New York market's cold wave. Korean media outlets like KBS World, Yonhap, and Korea Times report the market turmoil, while Business Korea notes the historic nature of the decline. Bloggers and café members are not covered in these documents, so their reactions are not reported.

  1. KOSPI Plunges over 8% in Morning Trade, Triggering Circuit Breaker and Sidecar KBS World · 2026-11-06
  2. Trading of KOSPI stocks suspended amid tech sell-off Korea Times · 2026-11-06
  3. [Opening Market] KOSPI Plunges Below 5,000 As Foreign Selling Intensifies Business Korea · 2026-11-06
  4. [Closing Market] KOSPI Plunges Below 5,400 on Blue Wave Fears Business Korea · 2026-11-05
  5. (News Focus) AI rout prompts KOSPI to tumble below 5,000 after U.S. midterm elections Yonhap · 2026-11-06
  6. [속보] 코스피, 8%대 급락 출발…코스닥 5~6%대↓ 매일경제 · 2026-11-06
  7. [속보] 코스피 장중 8%대 폭락…5000선 붕괴 한국경제 · 2026-11-06

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