South Korea's KOSPI falls 6% on week as semiconductor selling intensifies

South Korea's KOSPI fell further Friday, heading for over 6% weekly decline, its worst since last month's AI selloff, as investors liquidate semiconductor positions. The index traded near 6,228 points, down 1.1% on the day, extending July's 22% crash—its worst month since 2008. SK Hynix fell 4% after an 8% plunge, while Japanese chipmakers Kioxia, Murata, and TDK also dropped sharply. Disappointing reactions to US AI earnings, including AMD, SpaceX, Sandisk, and Western Digital, fueled the selloff. Investors question whether massive AI infrastructure spending justifies high valuations, though Samsung and SK Hynix still report solid profits.