KOSPI Pauses for Breath, Closes at 3,410

On the 17th, after 12 trading days of gains, the KOSPI halted its upward trend and started lower. The KOSPI, along with the won exchange rate, is displayed on the monitor in the dealing room of Hana Bank in Jung-gu, Seoul. On that day, the KOSPI opened at 3433.83, down 15.79 points (0.46%) from the previous session, and as of 9:20 a.m., it was down nearly 1%. September 17, 2025 Photo by Cho Yongjun

The KOSPI closed lower, pressured by selling from institutional and foreign investors.

On September 17, the KOSPI finished trading at 3,413.4, down 36.22 points (1.05%) from the previous session. The trading volume was 321.94 million shares, and the provisional trading value was 11.1076 trillion won.

By investor type, institutions and foreigners recorded net sales of 306.3 billion won and 35.2 billion won, respectively, while individuals made net purchases of 250 billion won. In the futures market, foreigners posted net sales of 1.0365 trillion won, while institutions and individuals recorded net purchases of 894.5 billion won and 144.2 billion won, respectively. For program trading, there was a net sale of 43 billion won in arbitrage trading and a net purchase of 234.7 billion won in non-arbitrage trading.

By sector, more sectors declined than rose. The construction sector fell 3.17%, insurance declined 2.5%, securities 2.08%, machinery and equipment 1.97%, electrical and electronics 1.87%, finance 1.37%, manufacturing 1.16%, pharmaceuticals 1.08%, metals 0.99%, general services 0.32%, and electricity and gas 0.25%. In contrast, the entertainment and culture sector rose 1.21%, real estate climbed 0.45%, paper and wood 0.26%, chemicals 0.26%, and transportation equipment 0.22%.

Among large-cap stocks by market capitalization, performance was mixed. Samsung Electronics declined 1.51%, SK Hynix 4.17%, Samsung Biologics 1.54%, Hanwha Aerospace 1.06%, Kia 0.39%, Doosan Enerbility 3.16%, Celltrion 0.18%, NAVER 0.64%, and Shinhan Financial Group 1.69%. On the other hand, LG Energy Solution rose 0.14%, KB Financial Group 0.42%, HD Hyundai Heavy Industries 0.6%, and Hyundai Motor Company 0.47%.

The number of advancing stocks was 305, while 567 stocks declined, and 57 remained unchanged. Two stocks hit the upper price limit.

The KOSDAQ index also ended the session weaker. On this day, the KOSDAQ closed at 845.53, down 6.31 points (0.74%) from the previous session. By investor type, institutions and foreigners recorded net sales of 112.8 billion won and 163.9 billion won, respectively, while individuals made net purchases of 287.1 billion won.

Among large-cap stocks on the KOSDAQ, more stocks declined than rose. Alteogen fell 4.06%, Ecopro BM 0.49%, Peptron 3.34%, PharmaResearch 1.43%, Rainbow Robotics 1.72%, ABL Bio 1.38%, Legochem Bio 2.19%, and Samchundang Pharm 0.23%. In contrast, Ecopro rose 1.12%, and HLB climbed 0.39%.

Meanwhile, in the Seoul foreign exchange market, the won/dollar exchange rate was trading at 1,380.6 won, up 1.1 won from the previous session.

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