At market open Korean chipmakers' stocks plunged, with Samsung Electronics dropping 11%+, SK Hynix down 12%+, and the Korea Composite Stock Price Index down 9%+ (Youkyung Lee/Bloomberg)

Korean chipmakers' stocks experienced a significant plunge at market open, with Samsung Electronics dropping over 11% and SK Hynix falling more than 12%. This downturn also impacted the Korea Composite Stock Price Index, which saw a decline of over 9%. The plunge was attributed to worsening investor sentiment regarding the artificial intelligence boom, particularly affecting the nation's memory chipmaking powerhouses.