57 trillionAI demandApril 7 2026foreign investorsHBM technologyKOSPImarket volatilityQ1 earningsSamsung Electronicssemiconductor growthSK Hynixstock market analysis 7 4월 2026 April 7, 2026, KOSPI Closing Market Review: Samsung’s Earnings and Foreign Investor Moves 서울특별시 Yeouido On April 7th, 2026, the Korean stock market faced a day of mixed emotions and complex dynamics. S…
