[Edaily Reporter Lee Hye-ra] The KOSDAQ index, which opened lower, has turned higher. The KOSDAQ index surged so sharply at one point during the session that a buy-side circuit breaker (suspension of buy orders in program trading) was triggered.

According to MP Doctor on the 11th, as of 2:30 p.m., the KOSPI is trading at 7,696.24, down 33.75 points (0.41%) from the previous close.
The KOSPI, which opened down more than 2% today, briefly fell below the 7,400 mark early in the session. Amid a fierce battle between foreign investors, retail investors, and pension funds, the index has remained in a range-bound pattern since the afternoon.
By investor type, foreign investors continue to sell off shares into the afternoon. Foreign investors have been net sellers for 10 consecutive trading days, offloading over 3 trillion won worth of shares as of this time. Once again, retail investors are defending the index’s bottom. They are showing buying momentum of nearly 2 trillion won today, while institutions—led by pension funds and asset management firms—are also net buyers by 951.5 billion won.
Among the top 10 stocks by market capitalization, #SK Hynix, #SK Square, #LG Energy Solution, #HD Hyundai Heavy Industries, and #Samsung C&T are up by 1–2%.
At the same time, the KOSDAQ index is trading at 988.41, up 37.12 points (3.84%) from the previous trading day.
Although it showed a decline of nearly 3% early in the session, it successfully turned positive as of 9:48 a.m. and is extending its gains. A buy-side circuit breaker was triggered around 1:58 p.m. This marks the 10th buy-side circuit breaker this year.
A buy-side circuit breaker is triggered when the KOSDAQ 150 futures (nearest month) rise by more than 6% and the KOSDAQ 150 index rises by more than 3% compared to the previous day, and this condition persists for one minute. At the time of activation, the futures price stood at 1,757.60, up 6.15%, while the KOSDAQ 150 Index was at 1,753.70, up 4.94%. For five minutes following the activation of the buy-side car, the validity of buy orders from program trading is suspended, and the buy-side car is automatically deactivated five minutes after activation.
Institutional buying is prominent in the KOSDAQ market. Institutions have switched to a buying stance in just one day and are currently net buyers of 523 billion won. In contrast, retail investors and foreign investors are net sellers of 165.8 billion won and 368.4 billion won, respectively.
Top-cap stocks on the KOSDAQ are showing strong gains. Stocks surging sharply are driving the index higher.
The market leader, #Alteogen, is trading at 344,500 won, up 9.37%. #Juseong Engineering, one of the leading companies in semiconductor materials, parts, and equipment (MPE), has risen for three consecutive days, with its gains reaching the 27% range at one point during the session. Juseong Engineering is trading at 249,000 won, up 25.13%, and has entered the top four in market capitalization. In addition, other SMEC companies such as #Wonik IPS and #IOTechnics are also posting double-digit gains.
Across all sectors on both markets, real estate, broadcasting and entertainment, healthcare companies and services, and biotechnology are leading the gains, while wireless communication services, construction, automotive, and banking are among the sectors seeing declines.