"How Can Balances Change So Much in a Day?" Korean Stock Market Surges... KOSPI Jumps 8% to Reclaim 8,000 Mark

Institutions Lead the Rally with KRW 2 Trillion Net Buying
Semiconductor Equipment and Bio Stocks Surge Together

The domestic stock market closed higher on June 9. The KOSPI surged more than 8% in a single day, recovering above the 8,000 mark, while the KOSDAQ followed with a gain of over 6%.

On this day, the KOSPI index closed at 8,096.93, up 612.52 points (8.18%) from the previous trading day. Institutional investors led the rally by making a net purchase of 2.4982 trillion won, which drove the index upward. In contrast, foreign investors sold 1.9806 trillion won and individual investors sold 615.2 billion won, respectively.

By sector, electrical & electronics (11.12%), medical precision equipment (10.88%), and manufacturing (9.31%) saw sharp increases and led the index gains. Machinery & equipment (5.85%), finance (5.60%), securities (5.21%), and retail (4.94%) also showed strength. IT services (-2.79%) and telecommunications (-0.13%) declined.

Among large-cap stocks, Samsung Electro-Mechanics (18.39%), SK hynix (15.91%), and SK Square (13.51%) surged. Samsung Electronics (8.97%) and Samsung Electronics (preferred shares) (5.71%) also rose, as did Kia (8.52%), Doosan Enerbility (7.58%), Samsung C&T (5.02%), Samsung Life Insurance (4.66%), Samsung Biologics (4.26%), and Shinhan Financial Group (4.22%). However, LG Electronics (-7.46%) and Hyundai Mobis (-2.78%) declined.

Jeongeun Lim, a researcher at KB Securities, said, "There was a rebound centered on semiconductors, which had seen heavy selling pressure the previous day. However, stocks such as LG Electronics, robot-related sectors, and Naver, which had surged recently, fell due to profit-taking."

On the 9th, when the KOSPI recovered above the 8000 level during trading hours, the KOSPI was displayed on a monitor in the dealing room at the headquarters of Hana Bank in Jung-gu, Seoul. Photo by Yonhap News

The KOSDAQ index closed at 967.81, up 56.42 points (6.19%) from the previous trading day. Foreign investors made a net purchase of 308.9 billion won, and institutions net bought 201.4 billion won, while individuals sold a net 512.1 billion won.

The simultaneous strength of bio and materials/component/equipment stocks drove gains in the KOSDAQ market. Among the top market cap stocks, PSK (24.28%), HPSP (20.89%), Leeno Industrial (16.33%), Kolon TissueGene (15.23%), Simmtech (15.10%), Wonik IPS (13.54%), Seojin System (13.23%), and Alteogen (12.78%) posted notable gains, while LigochemBio (9.87%), EO Technics (9.08%), Peptron (6.29%), Ecopro BM (4.95%), and Jusung Engineering (4.87%) were also strong. However, Padu (-3.19%) closed lower.

Researcher Lim commented, "Following a short-term overheating centered on semiconductors, concerns about rising US interest rates, and a correction after the concentration of buying in large-cap stocks, the market showed a quicker-than-expected recovery after a sharp drop. However, it is necessary to be cautious about the potential for further volatility depending on US inflation data and interest rate trends."

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