South Korea's KOSPI closed down 6.02% at 5,059.69 after an intraday decline of approximately 8.8% triggered a 20-minute trading halt. Samsung Electronics fell 6.4%, while SK Hynix declined 10.4%; foreign investors sold approximately 2.8 trillion won in Korean equities. The selloff followed broader global technology weakness and concerns that U.S. political changes could constrain AI and data-center investment. Korean authorities convened an emergency meeting and introduced measures intended to limit forced selling and market instability.
Reuters
Source: Reuters, November 6
Why it matters strategically
South Korea's semiconductor sector is simultaneously exposed to global AI infrastructure demand, memory pricing, foreign capital flows, and expectations about future manufacturing returns.
A stock-market decline does not prove that underlying demand has deteriorated. However, financing conditions and investment assumptions can change before companies observe a decline in actual orders.
