KOSDAQ Plunges 5% Intraday, Sell-side Sidecar Triggered (Update)

The KOSDAQ plunged more than 5% during intraday trading, triggering a sell-side sidecar.

According to the Korea Exchange, a sell-side sidecar was triggered on the KOSDAQ market at around 10:52 a.m. on July 20. This is the 10th KOSDAQ sell-side sidecar of the year.

On the 20th, employees are monitoring the stock market and exchange rates in the dealing room at the head office of Hana Bank in Jung-gu, Seoul. On that day, the KOSPI opened down 2.60% from the previous trading day at 6643.58, and the KOSDAQ opened down 2.35% at 773.21, with the decline narrowing. July 20, 2026. Photo by Yongjun Cho

At around 11:02 a.m. on the same day, the KOSDAQ was trading at 756.45, down 4.47% from the previous session.

The KOSDAQ sell-side sidecar is triggered when the KOSDAQ150 futures fall by 6% or more and the KOSDAQ150 index drops by 3% or more compared to the previous day, and this persists for at least one minute. When activated, program sell orders are suspended for five minutes.

At the time of activation, the futures price stood at 1,285.40, a drop of 6.16% from the previous closing price.

This content was produced with the assistance of AI translation services.