Why KOSPI 200 (KR200) fell 3.35%
KOSPI 200 (KR200) fell 3.35% on October 12, 2026 — Inflation and Mideast tensions open Seoul shares lower.
What happened
The KOSPI 200 fell 3.4% after opening lower on inflation worries and Middle East tensions. Tech names led the decline, which pulled the index's heavyweights down with it.
Why it moved
Hotter inflation raises the odds of tighter rates, which compresses valuations for long-duration tech stocks. Geopolitical tension lifts energy costs and pushes investors toward risk-off positioning, so foreign selling…
Why it matters
Within the Korea Tech theme, Samsung and SK Hynix carried the index through weeks of HBM-driven gains and won-linked inflows. This drop shows how exposed that rally is to macro shocks once the momentum starts to fade.
What would break the thesis
A cooler inflation print or a easing of Middle East risk would likely reverse the opening weakness. If the index keeps falling while HBM pricing holds, the selloff is macro-driven and not a sign that the AI memory cycle…