South Korea’s Kospi tanks 8% despite US-Iran war optimism. Here are 4 reasons why

South Korea’s Kospi tanks 8% despite US-Iran war optimism. Here are 4 reasons why

SK Hynix crashed 11% and Samsung 9.15%, dragging Kospi down 8.1%, as Korean chip giants—over 50% of index weight—face global AI capex concerns and Chinese competition (ChangXin +500% IPO). Signals investor doubt on semiconductor ROI sustainability and margin compression from Beijing's state-backed lithography threat.