Memory-chip makers led a KOSPI rebound, with the index rising as much as 8% after sliding about 15% from its record high over three days. Samsung Electronics gained up to 9.1% and SK Hynix more than 14%. A prior AI-driven rally had pushed KOSPI year-

2026-06-09

Memory-chip makers led a KOSPI rebound, with the index rising as much as 8% after sliding about 15% from its record high over three days. Samsung Electronics gained up to 9.1% and SK Hynix more than 14%. A prior AI-driven rally had pushed KOSPI year-to-date gains above 100% but collapsed on Monday, triggering circuit breakers and briefly halting trading. Leveraged ETFs magnified the move and intensified the sell-off. Samsung Securities analyst Lee Jongwook said volatility reflects market-structure changes rather than a cyclical directional shift, and advised maintaining positions or adding opportunistically after the liquidation.