KOSPI Turns Lower; SK hynix Falls Nearly 4%

Foreign investors turn net sellers... Institutions also say "sell"

A display showing the domestic stock market is seen in the dealing room at Hana Bank headquarters in Jung-gu, Seoul, on Nov. 13, as the KOSPI opened up more than 2%. 2026.11.13. Photo by Kang Jinhyeong

After rising in the morning on Nov. 13, the KOSPI turned lower in the afternoon. Volatility picked up, with SK hynix, which had climbed more than 6% during the session, reversing course to fall in the 3% range.

As of 2:13 p.m., the KOSPI was down 0.60% from the previous day at 5,310.94. This marked a shift from the morning, when it opened more than 2% higher than the previous day and rose as high as 5,504.44 during the session.

Foreign investors, who had been net buyers in the morning, all turned to selling. On the KOSPI market, foreign investors were net sellers of 524.4 billion won, while institutions were net sellers of 200.5 billion won. Only individual investors were net buyers, purchasing 107.9 billion won.

Unlike in the morning, when most sectors were up, many had turned lower. The biggest declines were in electricity and gas (-7.83%), electrical and electronic equipment (-1.65%), manufacturing (-1.28%), textiles and apparel (-1.13%), and pharmaceuticals (-0.95%). In contrast, medical and precision equipment (2.32%), telecommunications (1.96%), construction (1.66%), securities (1.64%), general services (1.14%), and insurance (1.06%) rose.

Declines deepened among the top 10 stocks by market capitalization. The biggest losses were recorded by SK Square (-5.5%), SK hynix (-3.8%), Samsung Electro-Mechanics (-3.7%), Samsung Biologics (-2.8%), LG Energy Solution (-1.5%), and Samsung Electronics (-0.8%). KB Financial Group (4.2%), Celltrion (1.9%), Samsung Life Insurance (1.8%), and Hyundai Motor (1.5%) rose.

At the same time, the KOSDAQ was up 1.34% from the previous day at 705.85. It had climbed as high as 725.81, up 4.20% from the previous day, during the session before paring its gains.

On the KOSDAQ market, foreign investors were net sellers of 19.8 billion won. Individual investors were also net sellers, offloading 116.5 billion won. Only institutions were net buyers, purchasing 134 billion won.

Most sectors were still rising. The biggest gains were in nonmetallic minerals (6.64%), machinery and equipment (3.20%), transportation equipment and parts (2.49%), retail (1.61%), chemicals (1.50%), manufacturing (1.41%), electrical and electronic equipment (1.38%), publishing and media reproduction (1.20%), metals (1.17%), and construction (1.08%). Medical and precision equipment (-1.11%) and pharmaceuticals (0.87%) declined.

Among the top 10 stocks by market capitalization, Rainbow Robotics posted the biggest gain, rising 7.3%. It was followed by Simmtech (1.1%), EcoPro BM (1.0%), EcoPro (0.5%), and Jusung Engineering (0.4%). Sam Chun Dang Pharm (-1.9%), Wonik IPS (-1.0%), and Alteogen (-0.8%) fell.

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