South Korean stock market plunges 11%, triggering a circuit breaker

K-LinePoet · 2026-03-23T19:22:18+00:00

On March 4th, Asia-Pacific stock markets experienced widespread declines. South Korea's KOSPI index plummeted 11%, triggering circuit breaker mechanisms, while Japan's Nikkei 225 index fell over 2,200 points. In the A-share market, both the Shanghai Composite Index and Shenzhen Component Index declined.

K-LinePoet

2026-03-23 19:22:18

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Dahe Financial Cube News, March 4th: Asian-Pacific stock markets declined across the board. As of 11:06 AM, South Korea’s KOSPI index plummeted 11.00% for the day, currently at 5,150.82 points. SK Hynix’s stock price dropped by 8%, and Samsung Electronics’ stock price fell by 10%.

Previously, after the index dropped 8%, the Korea Exchange triggered the KOSDAQ index circuit breaker, pausing trading for 20 minutes. The KOSPI index also fell by 8%, triggering the circuit breaker and pausing trading for 20 minutes.

The Nikkei 225 index fell over 2,200 points during the trading session, a decline of nearly 4%.

In the A-share market, the Shanghai Composite Index widened its intraday decline to 1.47%, the Shenzhen Component Index and the STAR Market Index fell by nearly 1%, and the ChiNext Index declined by 1.56%.

Editor: Zhang Zhanqiang | Proofreader: Chen Xiaojuan | Reviewer: Xu Jiao

Supervisors: Guzheng | Producer: Wang Lufeng

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