KOSPI jumped 3.6% to 6,183.21 points, closing in on its February record of 6,347.4 points.
Gains were led by memory‑chip giants Samsung Electronics and SK Hynix on AI‑driven demand expectations.
Positive sentiment also stemmed from easing U.S.–Iran tensions, cooling oil prices and softer U.S. producer‑inflation data.
U.S. markets rose, with the S&P 500 up ~1.2% and Nasdaq gaining nearly 2%, boosting risk appetite.