Home / Business and Economy / Samsung's Plan Sparks KOSPI Plunge
Samsung's Plan Sparks KOSPI Plunge
24 Aug
Summary
- KOSPI index dropped 3.12% due to Samsung's shareholder plan.
- Samsung shares fell over 8% on investor disappointment.
- KOSPI volatility surpasses 2008 crisis levels in 2026.

The KOSPI index in South Korea experienced a sharp decline of 3.12% on Monday, August 24, 2026, closing at 6,696.96 points. This significant drop was primarily driven by Samsung Electronics' shares, which fell more than 8% after investors expressed disappointment with the company's latest shareholder return plan. The market had anticipated a much larger return package from Samsung, setting a high bar that the actual announcement failed to meet.
The KOSPI's volatility in 2026 has been notable, with the index experiencing significant swings. By late June of 2026, the exchange had already recorded nearly 30 sidecar activations and five circuit breakers, surpassing the full-year totals from 2008. This heightened volatility is concentrated in major chipmakers like Samsung Electronics and SK Hynix, which constitute a substantial portion of the KOSPI's market capitalization.
Earlier in late July 2026, the KOSPI suffered another steep selloff, losing approximately $2.18 trillion in market value over two days as enthusiasm for chipmakers waned. This occurred after SK Hynix's second-quarter earnings missed estimates, impacting broader expectations for shareholder returns in the semiconductor sector. Despite these sharp pullbacks, the KOSPI remained substantially up year-to-date in U.S. dollar terms, highlighting its resilience and South Korea's critical role in the global AI supply chain.