KOSPI Composite Index Surges Above 4,100 as Global Markets Position for Fed Rate Cut (5–7 December 2025)
The KOSPI closed at 4,100.05 on Friday, December 5, up 1.78% for the day and about 4.4% for the week, its strongest weekly gain in a year. The index has surged roughly 60–70% since the start of 2025, outpacing most major world markets. Analysts cited expectations of a U.S. Fed rate cut, a strong AI and semiconductor cycle, and Korea’s reform agenda as key drivers.