Bank of Korea: Samsung Electronics and SK Hynix Accounted for 99% of KOSPI Gains

The Bank of Korea's September 2026 Monetary and Credit Policy Report analyzed the volatility of the KOSPI index this year. The report noted that the contribution of Samsung Electronics and SK Hynix to the index's growth increased significantly, accounting for 99% of the rise as the KOSPI climbed from 8,000 to 9,000 points in June.