KOSPI Index Drops After Surging Above 9,000 Points

The Korea Composite Stock Price Index (KOSPI) experienced a sharp volatility shift between June 25 and June 26, 2026. On Thursday, the benchmark index surged 5.42 percent to close at 8,930.30 points, briefly crossing the 9,000-point threshold to reach a peak of 9,004.04. This followed a two-session growth streak that saw the index rise by more than 725 points, or 8 percent.

This momentum reversed on Friday, June 26, when the KOSPI opened 1.31 percent lower at 8,813.18. Analysts attributed the downturn to profit-taking by investors amid a gloomy global forecast for Asian markets. Contributing factors included poor economic data and geopolitical instability in the Middle East, specifically following a projectile strike on a cargo ship near the Strait of Hormuz.

Other financial indicators showed similar weakness. The tech-heavy KOSDAQ, which had already fallen below 900 points on Thursday to close at 887.81, opened 0.38 percent lower on Friday. Additionally, the South Korean won weakened against the U.S. dollar, trading at 1,547.3 won per dollar as of 9 a.m. Friday.