[REVISION HISTORY]

South Korean KOSPI market performance and trends

Updated 8 times since CLSTR started tracking revisions of this situation.

What changed

2026-10-13 05:50 UTC → 2026-10-15 02:50 UTC · added ~~removed~~

The South Korean KOSPI market has experienced significant activity driven by sector-specific growth and shifting macroeconomic factors. In late August, profit forecasts for KOSPI-listed companies were raised following strong second-quarter results. By mid-September, the KOSPI index saw a surge of 2.81% amid falling global oil prices and easing inflation concerns. However, by October 2026, the market faced renewed volatility and a sharp decline. On October 8, the KOSPI fell 2.62 percent to close at 6,625.93, driven by high interest rates, elevated oil prices, and cautious macroeconomic sentiment. Large-cap technology stocks, including Samsung Electronics and SK hynix, led the retreat. By October 11, the downturn intensified, marking a three-session losing streak where the index fell over 5.4 percent, dropping below the 6,400 level. This slump is characterized by a rapid exit of foreign capital, described as the fastest in Asia. This retreat follows a massive rally in the first half of 2026, with the index having lost approximately 32 percent from its June peak. Despite Samsung Electronics reporting a record third-quarter operating profit of 107 trillion won, investors have engaged in profit-taking due to concerns over the sustainability of AI investment and rising global interest rates. On October 10, the downturn continued as the KOSPI closed at 6,384.24, a 3.65 percent decrease, while the KOSDAQ dropped 4.83 percent to 849.19. Major semiconductor companies led the decline, with Samsung Electronics falling 4.39 percent and SK Hynix dropping 4.52 percent. These losses were attributed to concerns regarding the sustainability of AI-driven demand, potential oversupply from Chinese manufacturer ChangXin Memory Technologies (CXMT), and foreign investors net selling over 2 trillion won in the KOSPI market. ~~Investors are now awaiting U.S. inflation data, including~~ On October 15, the ~~CPI~~ sell-off intensified as the combined market capitalization of the KOSPI and ~~PPI, to gauge future interest rate directions.~~ KOSDAQ indices dropped by approximately 389 trillion won.

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