WhyItDropped

KOSPI · June 24, 2025

The day a ceasefire met the chip cycle

+2.96%

single-day change vs previous close

Part of a longer stretch

Five months past the tariff shock

midway through · 2025-04-09 → 2025-09-10, +44.51% over the whole period

What happened that day?

  • The KOSPI rose 2.96% on the day
  • News of a ceasefire in the Middle East sent oil sharply lower, a direct help to a country importing all of its crude
  • When oil falls, sectors where fuel is a large part of cost — airlines, chemicals, shipping — respond first
  • At the same time demand for memory used in artificial intelligence stayed strong, and the makers of the expensive high-performance parts are concentrated in Korea
  • The two together carried the KOSPI through three thousand in this period, a level it had failed to hold for years
  • The advance was led by a small number of large companies, so the index rose while it did not feel that way

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.