KOSPI 5.35% plunge; selling sidecar and circuit breaker triggered simultaneously
2026-07-08 KOSPI 7,246.79closed at 409.52 points (5.35%) lower, and amid foreign selling during the session, a selling sidecar and circuit breaker were triggered one after another. 63% of KOSPI-listed stocks recorded new lows, while the KOSDAQ fell below the 800 line during the session, reaching its lowest intraday level in 10 months.
KOSPI 7,246.79closed at , and trading was temporarily suspended during the session. As a result, investors faced restrictions on short-term trading.
The index fell 409.52 points, 5.35% over the day. The decline widened sharply during the session.
% of KOSPI component stocks recorded new lows, while large-cap stocks among the top companies by market capitalization also fell broadly. Weakness in large caps spread across the market.63}},
KOSDAQ fell below the intraday 800line, recording an intraday level below the 10line for the first time in months. Losses were also steep in the KOSDAQ market.800line.
Foreign selling continued during the session, causing trading conditions to change abruptly. Foreign selling is viewed as the direct backdrop to the activation of the circuit breaker.
The Korea Exchange activated the sell-sidecar, after which the circuit breaker operated and trading was suspended for a certain period. Disclosures concerning the resumption of trading followed.
Sell orders concentrated during trading hours, significantly increasing stock-market volatility. Delays in order execution were observed for some issues in investors’ quote windows.
Additional notices from the exchange and securities firms have followed in succession, while official materials and disclosures concerning the day’s market conditions are organizing the day’s market flow.