The KOSPI reached an all-time high in just two days. The index was driven upward by simultaneous net purchases from foreign and institutional investors, along with expectations of a U.S. interest rate cut.
On September 18, the KOSPI closed at 3,461.30, up 47.90 points (1.40%) from the previous trading day. This surpassed both the previous closing record of 3,449.62 set on September 16 and the previous intraday high of 3,452.50.
The index opened at 3,432.77, up 0.57% from the previous session. Although the index started higher, it briefly fell to 3,422.77 due to net selling by foreign and institutional investors early in the session. However, as institutions switched to net buying and foreigners joined this trend, the index rebounded and extended its gains. Ultimately, the index maintained its upward momentum until the end, setting a new all-time high.
By investor type, foreign investors and institutions recorded net purchases of 286.3 billion won and 430.7 billion won, respectively. In contrast, individual investors recorded net sales of 781.6 billion won.
By sector, electrical and electronics stocks rose by 3.35%, while securities climbed by 2.20%. In addition, chemicals, medical and precision, and entertainment and culture sectors each gained more than 1%. On the other hand, metals fell by 1.57%.
Among large-cap stocks, Samsung Electronics closed at 80,500 won, up 2,300 won (2.94%) from the previous session. SK Hynix finished at 353,000 won, up 19,500 won (5.85%), while NAVER also rose by 2.14%. In addition, LG Energy Solution, Hyundai Motor, and Kia each gained more than 1%.
In contrast, HD Hyundai Heavy Industries, Doosan Enerbility, Hanwha Ocean, and Shinhan Financial Group each fell by more than 1%.
On the KOSPI, 591 stocks rose with none hitting the upper limit, while 264 stocks declined without any hitting the lower limit. Seventy-three stocks remained unchanged.
The KOSDAQ closed at 857.11, up 11.58 points (1.37%) from the previous session, marking a new all-time high for the year.
By investor type, foreign investors and institutions recorded net purchases of 52.9 billion won and 161.7 billion won, respectively. In contrast, individual investors recorded net sales of 205.3 billion won.
By sector, machinery and equipment, as well as non-metallic materials, each rose by more than 3%. Chemicals also gained 2.25%, while electrical and electronics, medical and precision, transportation equipment and parts, distribution, and construction sectors each rose by more than 1%. Conversely, textiles and apparel, publishing and media reproduction, and metals declined slightly.
Among large-cap stocks, Alteogen closed at 473,500 won, up 500 won (0.11%) from the previous session. Rainbow Robotics rose by 3.86%, and Hugel gained 2.29%. In addition, Ecopro, HLB, and Lino Industrial each climbed by more than 1%. On the other hand, Pharmaresearch and Classys each fell by more than 1%.
On the KOSDAQ, 1,161 stocks rose, including four stocks such as Iwinplus and Korea Advanced Materials that hit the upper limit. Four hundred seventy stocks declined without any hitting the lower limit, and 100 stocks remained unchanged.
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