KOSPI Rebounds at Opening... Maintains 3,150 Range in Early Trading

Technical Buying Emerges, Samsung Electronics and SK Hynix Rebound
KOSDAQ Lags Behind as Foreigners and Institutions Turn Net Sellers

The Korean stock market, which plunged more than 1% the previous day, is showing a rebound in early trading.

On September 2, the KOSPI opened at 3,155.73, up 0.41% from the previous day. Since then, it has remained in the 3,150 range. After dropping more than 1% the previous day and falling to the 3,140 range, technical buying appears to have emerged.

Net buying by both foreign investors and institutions led the rebound in the index. They recorded net purchases of 35.6 billion won and 5.3 billion won, respectively. In contrast, individuals recorded net sales of 26.1 billion won.

The ratio of rising to falling sectors is similar. Sectors such as electrical and electronics (1.42%), machinery and equipment (1.10%), manufacturing (0.79%), and construction (0.68%) rose, while telecommunications (-1.55%), food, beverage and tobacco (-0.73%), chemicals (-0.69%), and distribution (-0.53%) declined.

Among the top 10 sectors by market capitalization, most are on an upward trend. Samsung Electronics recorded the largest gain at 2.0%, followed by SK Hynix (1.5%), Hanwha Aerospace (1.4%), Celltrion (1.0%), and HD Hyundai Heavy Industries (0.3%). Only Hyundai Motor (-0.6%) and LG Energy Solution (-0.2%) declined.

The KOSDAQ also started at 789.35, up 0.55%. Here too, buying appears to have been triggered by the sharp fall the previous day. However, the rebound is weaker than that of the KOSPI, and the index is hovering in the 785 range, lower than at the opening.

In the KOSDAQ market, foreigners and institutions recorded net sales of 43.5 billion won and 7.3 billion won, respectively. In contrast, individuals recorded net purchases of 60.9 billion won.

Both rising and falling sectors are observed here as well. Machinery and equipment (1.02%), metals (0.75%), and general services (0.72%) rose, while publishing and media reproduction (-0.70%), distribution (-0.51%), and construction (-0.48%) declined.

Among the top 10 stocks by market capitalization, Rainbow Robotics (1.6%), Rigachem Bio (1.2%), and Alteogen (1.1%) showed strong gains. Ecopro BM (-0.6%) and HLB (-0.5%) declined.

The KOSPI index started the session higher compared to the previous trading day, with the index displayed on the status board at the Hana Bank dealing room in Jung-gu, Seoul on September 2, 2025. Photo by Dongju Yoon