KOSPI · June 8, 2026
The Monday the exchange had to stop trading
-8.29%
single-day change vs previous close
What happened that day?
- On 8 June 2026 the KOSPI fell 8.29%
- The AI chip selloff in the US the previous Friday came over unchanged
- As the fall deepened intraday, the Korea Exchange triggered a circuit breaker and stopped trading for twenty minutes
- Samsung Electronics and SK Hynix each fell around ten percent intraday. They carry so much index weight that the index simply followed
- Foreign money left in size in a single session
- The argument underneath was whether AI capital spending had gone too far — and how long chip prices could hold
- Measured from the peak, the index was 36.45% down in this stretch
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.