Seoul Composite closes down 3.59% at 5,648.79

A single-session drop of this size in Seoul's benchmark is notable less for the headline number than for what it says about how quickly risk appetite can reverse in a market that has run hard. The move is broad by construction, hitting the index as a whole rather than any one sector, so the read-across matters most for anyone using KOSPI as a proxy for Korean equity exposure. Whether this proves a one-day air pocket or the start of a deeper repricing is the open question, and the next session's breadth and follow-through are the things worth watching.