Domestic stock market linked to international oil prices, KOSPI rises while KOSDAQ falls with divergent trends

TechubNews · 2026-03-17T11:51:19+00:00

South Korea's stock market showed divergent movements on the 17th, with the KOSPI index rising more than 1% to 5640 points, driven by declining international oil prices and the influence of U.S. stock markets; meanwhile, the KOSDAQ index fell 0.12% to 1136.94 points due to selling by foreign and institutional investors. Future market volatility will continue to be affected by global economic uncertainties and oil price fluctuations.

TechubNews

2026-03-17 11:51:19

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South Korea’s stock market on the 17th showed divergence due to fluctuations in international oil prices and the U.S. stock market. The KOSPI index rose over 1% that day, closing at 5,640 points, but the KOSDAQ index reversed course and declined, ultimately closing lower.

The KOSPI index increased by 90.63 points (1.63%) from the previous day, closing at 5,640.48 points. It briefly rose to 5,717.13 points during the session but failed to sustain further gains. The rise was driven by positive investor sentiment from falling international oil prices and the strong performance of the New York stock market. However, a rebound in oil prices during the session slowed the upward momentum.

Meanwhile, the KOSDAQ index fell by 1.35 points (0.12%), closing at 1,136.94 points. Despite some individual investors buying in, larger selling by foreign investors and institutions had a greater impact. As a result, the index couldn’t maintain the strength shown in the early trading session and turned downward.

The movement of international oil prices has had a significant impact on global markets. In the New York market, investor sentiment recovered due to expectations surrounding international oil prices and the Strait of Hormuz, leading to a synchronized rise in major indices. This also positively influenced the KOSPI index that day, but a rebound in oil prices during the session again triggered investor sell-offs.

Looking ahead, given the uncertainty in international oil prices and the global economic situation, the South Korean stock market is likely to continue experiencing volatility. Investors should pay close attention to these external factors and monitor market trends carefully.

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