KOSPI on a Roller Coaster... Rebounds After Turning Lower

The KOSPI, which had surged past the 4,100 mark following the conclusion of the Korea-US tariff negotiations, experienced a rollercoaster ride. After turning downward during the session, it rebounded again.

As the KOSPI index continues to hit record highs day after day, the status board in the dealing room of Hana Bank in Jung-gu, Seoul, displayed the KOSPI and the won/dollar exchange rate on the 30th. On that day, the KOSPI opened at 4,105.95, up 24.80 points (0.61%) from the previous session, and at one point reached an intraday record high of 4,146.72. 2025.10.30 Photo by Jo Yongjun

As of 10:51 a.m. on the 30th, the KOSPI was trading at 4,103.82, up 22.67 points (0.56%) from the previous session. The index had started the day at 4,105.95, a 0.61% increase from the previous session, and at one point rose to 4,147.72. However, after 10 a.m., it reversed course and declined. The KOSPI then recovered its losses and regained the 4,100 level.

By investor type, individuals and foreign investors were net buyers, purchasing 317.5 billion won and 97.8 billion won, respectively. In contrast, institutions were net sellers of 408 billion won.

By industry, entertainment & culture and transportation equipment & parts rose by more than 2%. In addition, electrical & electronics and securities gained more than 1%. On the other hand, electricity & gas fell by 4.05%, while machinery & equipment, construction, and medical & precision sectors each declined by more than 2%.

Among the top market capitalization stocks, Samsung Electronics was trading at 104,300 won, up 3,800 won (3.78%) from the previous session. Hanwha Ocean rose by 7.88%, while Hyundai Motor and Kia climbed by 4.26% and 2.68%, respectively. In contrast, LG Energy Solution and Doosan Enerbility were each down by more than 5%.