KOSPI trading halted 20 minutes as chip selloff triggers second circuit breaker of 2026

South Korea's KOSPI plunged more than 8% on July 7, tripping a Level 1 circuit breaker that froze trading for 20 minutes — the second such halt this year. Chip heavyweights led the rout: SK Hynix sank about 10.6% and Samsung Electronics roughly 8.2%. The slide followed a sharp US semiconductor selloff after disappointing Broadcom forecasts dented AI-demand sentiment.
3 sources
- 01S.Koreas KOSPI slides over 8%, triggers circuit breaker on fragile tech stocks (Investing.com)investing.com
- 02[Breaking] KOSPI Plunges 8%, Circuit Breaker Triggered (The Asia Business Daily)asiae.co.kr
- 03S.Korea Hits Circuit Breaker After Kospi Index Plunges 8% (Kaohoon International)kaohooninternational.com