Key facts
- The Korea Exchange activated a sell-side sidecar for the KOSPI index on Tuesday.
- Program trading for KOSPI-listed shares was suspended for five minutes.
- The KOSPI index fell 4.03% to 6,127.15 as of 9:50 a.m. local time.
Korea Exchange activates sell-side circuit breaker on KOSPI fall
IN SHORT
The Korea Exchange activated a sell-side circuit breaker on the KOSPI index on October 13, 2026, due to a sharp fall in the market. This measure is designed to curb excessive price fluctuations.
Key Numbers
4.03%KOSPI index fall
6,127.15KOSPI index level
5 minutesprogram trading suspension
5%KOSPI 200 Futures Index trigger for sidecar
Who's Involved
Korea Exchange
activated a sell-side sidecar for the KOSPI index
Samsung Electronics
among semiconductor shares sold off
SK hynix
among semiconductor shares sold off
↳ Why This Matters
The activation of a sell-side sidecar indicates significant market volatility and investor concern, potentially signaling broader market sentiment shifts and impacting trading strategies.