The KOSPI Composite Index is down 315.56 points or 3.72% this week to 8160.59

--Largest one-week point and percentage decline since the week ending March 27, 2026

--Snaps a two-week winning streak

--Today it is down 478.82 points or 5.54%

--Largest one-day point and percentage decline since Friday, May 15, 2026