KOSPI plunges 3.48% to 5,730.74 on AI concerns

KOSPI closes 1.2 percent lower as Samsung disappoints
KOSPI closes 6.6 percent higher as SK hynix revives chips ...
KOSPI closes 3.1 percent higher as SK hynix leads AI rebound ...
KOSPI loses 81 points as Goldman cuts target after selloff ...
KOSPI falls 1.5 percent as Samsung and SK hynix earnings ...