La Bourse de Séoul s'est effondrée de 9% lundi en clôture, plombée par une nouvelle chute des champions sud-coréens des puces mémoire Samsung et SH hynix, sur fond d'inquiétudes persistantes quant aux valorisations liées au boom de l'intelligence artificielle (IA).
L'indice phare Kospi a dévissé de 8,95%, à 6.807 points, miné notamment par un plongeon de SK hynix. Le géant des semi-conducteurs, qui a trébuché à Séoul dans la foulée d'une introduction boursière réussie vendredi à Wall Street, a vu son titre perdre un tiers de sa valeur en moins de 3 semaines.
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