KOSPI plunges over 7% and triggers circuit breaker amid AI investment fears
10/15/2026 — 10/15, 22:23·2 sources (all)·2 reports (all)
Key takeaways
- On October 15, South Korea's KOSPI plunged 7.57%, triggering circuit breakers alongside KOSDAQ for the first time in over two months. Rising…
On October 15, South Korea's KOSPI plunged 7.57%, triggering circuit breakers alongside KOSDAQ for the first time in over two months. Rising rate fears from hot US CPI data combined with CoreWeave's debt yields spiking to 14.8% and a 15.5% one-day stock drop stoked doubts about AI investment sustainability, with foreign investors selling for eight straight sessions.
Latest turnSouth Korea's stock market suffered a "Black Thursday" on the 15th, with the KOSPI closing down 7.57% at 5,554.22 and the KOSDAQ down 7.65%, both triggering circuit breakers intraday. The KOSPI has fallen 21% over seven straight sessions since October 6, with Samsung Electronics down 21.8% and SK Hynix down 28.9% this month. Analysts cite financing bottlenecks in AI infrastructure investment and semiconductor uncertainty as key drags.
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South Korea's stock market suffered a "Black Thursday" on the 15th, with the KOSPI closing down 7.57% at 5,554.22 and the KOSDAQ down 7.65%, both triggering circuit breakers intraday. The KOSPI has fallen 21% over seven straight sessions since October 6, with Samsung Electronics down 21.8% and SK Hynix down 28.9% this month. Analysts cite financing bottlenecks in AI infrastructure investment and semiconductor uncertainty as key drags.
中国新闻网AI score 61KOSPI plunged 7.57% on October 15, with both KOSPI and KOSDAQ triggering circuit breakers for the first time in over two months, per Wallstreetcn. The selloff was fueled by hotter-than-expected US CPI data raising rate-hike fears, plus doubts about AI investment sustainability after Coreweave's bond yields spiked to 14.8% and its shares dropped 15.5% in a day. Foreign investors have net sold for eight straight sessions.
华尔街见闻AI score 57
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