Semiconductor Valuation Realignments Trigger Technical Trading Halt
The South Korean stock market experienced a sharp decline in late June 2026, triggering automatic circuit breakers that temporarily halted trading on the benchmark KOSPI index. The sell-off was driven by extreme volatility in semiconductor and AI stocks, which had reached historically high valuations over the preceding six months.
No Impact on Chip Production Infrastructure and Long-Term Capex
Market analysts emphasized that the downturn was a financial valuation correction and did not affect actual semiconductor production. Major players Samsung Electronics and SK Hynix, which together account for a massive portion of the KOSPI’s market capitalization, continue to run fabrication facilities at full capacity to meet global demand for high-bandwidth memory (HBM) chips.
