South Korea’s KOSPI fell 225.54 points, or 3.26%, to close at 6,684.37 on September 14, its third consecutive decline, as foreign and institutional selling hit semiconductor shares amid above-forecast U.S. core inflation, oil-market disruption and concern over AI investment. Foreign investors sold a revised net 3.9116 trillion won and institutions sold 1.69 trillion won, while individuals bought 4.125 trillion won. Samsung Electronics fell 4.05% and SK hynix dropped 6.35%, while the KOSDAQ declined 1.69% to 806.79. West Texas Intermediate crude topped $103 a barrel intraday after Saudi Arabia shut its east-west pipeline, while the won-dollar rate rose 1.40 won to 1,347.30. Citi cited a hawkish Federal Reserve, rising global bond yields, an unwinding yen carry trade, an oil shock and European natural-gas supply disruption as risks through year-end. Combined KOSPI and KOSDAQ capitalization stood at 6,022.223 trillion won at 11:40 a.m., down 212.555 trillion won from August 14. The Korea Exchange opened an after-hours market operating from 4 p.m. to 8 p.m. on the same day.