KOSPI · July 30, 2026
The AI bubble argument hits the KOSPI
-38.63%
peak-to-trough, the whole slide
27 trading days · 2026-06-22 → 2026-07-30
still below that peak today
What happened that day?
- From the high on 22 June 2026 to the low on 30 July, the KOSPI fell 38.63% — 27 trading days
- So much of this index sits in two chip companies that when they move, the index moves with them
- The argument was about AI capital spending. The money going out is certain; when it comes back as profit is not
- Competition from a Chinese memory maker piled on — more supply means lower prices
- On 28 July the one-day fall reached double digits and trading was halted for twenty minutes
- The day after the low, on 31 July, the index posted the largest one-day gain in its history
- The old high has not been recovered yet
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.