KOSPI · September 10, 2025
Korea's three-year climb back
+53.77%
trough back to the old high
720 trading days · 2022-09-30 → 2025-09-10
this undid the slide that began 2021-07-06
What happened that day?
- From the 30 September 2022 low to 10 September 2025 the KOSPI rose 53.77% — 720 trading days
- It undid the 2021–22 decline driven by rate hikes, a weak won and the chip downcycle
- It took three years because the climb was pushed back several times along the way — this was not one clean run
- The chip cycle turning and demand for AI memory gave the rally an earnings case
- US rate hikes winding down eased the pressure on the won, which helped foreign money return
- The old high returned on 10 September 2025
Sources
Every figure on this page is recomputed from the original daily closing prices and checked against them at build time. The account of what happened is written from the sources listed above.