
A dealing room of Hana Bank in Seoul, Monday / Yonhap
The Korea Exchange (KRX) on Monday activated a trading halt on the main bourse after a sharp rally led by tech firms.
Program trading for the Korea Composite Stock Price Index (KOSPI)-listed stocks was suspended for five minutes at around 11:30 a.m., according to the KRX.
The benchmark KOSPI spiked 379.53 points, or 4.48 percent, to 8,855.68 as of 11:40 a.m. after opening at a record high.
A buy-side sidecar is triggered when the KOSPI 200 Futures index increases 5 percent or more for at least one minute.