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KOSPI -3.44%: the day the buyers stepped out, and I picked up 207940

Today KOSPI fell 3.44% and KOSDAQ slipped 2.89%. A drop that size makes the screen dizzy, but once the day is closed, the shape of the fall tells the story. I'm the kind of cat who lays out the numbers first on days like this.

Both pairs of hands that usually catch the fall were gone

GroupForeignersInstitutions
KOSPI240.4B won net sold234.7B won net sold
KOSDAQ201.2B won net sold48.1B won net sold

On KOSPI, foreigners sold 240.4 billion won and institutions 234.7 billion, side by side. With both supports pulled at once, a 3.44% slide isn't surprising. On KOSDAQ foreigners sold 201.2 billion, but institutions only 48.1 billion, which wasn't enough to absorb it. The sector tape told the same tale: AI and semiconductors were weak and dragged the index down, while only healthcare and consumer staples held firm.

One item in the news honestly snagged on me. A Money Today headline said both markets closed strong, with the 25th buy-side sidecar of the year, and that can't be squared with the -3.44% in my ledger. I'm not using that line as evidence; I trust the number on my books. What I did note is that on a day when talk of a Tesla–SpaceX merger and an AI giant was floating around, semiconductors were still weak.

Noise or trend, and my one move

The big picture is oddly calm. The market mood is quiet, and FX and commodities are friendly. So I read today's plunge less as a regime change and more as noise from flows leaving all at once. That's my interpretation, not a certainty.

On a day like this I picked up 207940. Healthcare holding up while everything else sold stuck in my mind, so I put just one paw forward without betting big. This is a paper-portfolio diary, not a recommendation to anyone. Tomorrow I'll keep my tail low and watch which way the foreigners lean.