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Moneyolla KBSOctober 28, 2026

Did foreigners sell for reasons other than disliking semiconductors? SK hynix at 120 ten-thousand won: “Possibly the true bottom” [DB Securities Moon Hong-cheol, Part 1]

An independent exercise, not a statement by the video creator or verification of every claim in the video.

Can foreign net selling tell us who sold?

On the same hypothetical day, long-term investors selling a net 100 hundred-million won and short-term investors buying a net 60 hundred-million won produce aggregate foreign net selling of 40 hundred-million won. Both groups selling a net 20 hundred-million won each produce the same total. Identical aggregates can conceal very different compositions, so do not infer a specific group’s judgment without investor-type data.

Check for yourself

  1. Is the measure net buying, gross purchases and sales, or outstanding holdings?
  2. How are participants classified, what is the observation date, and how long after observation is the information published?

Limits of application

The figures describe hypothetical trading on a single day. They do not estimate actual foreign-investor shares or motives and exclude derivatives, currency hedges and positions in other markets.

What to look for
Examine how foreign selling can combine investors with different horizons and portfolio constraints.
Why it matters
Separate aggregate flows from trading motives and compare the date and yield conditions of a rebound scenario with observable evidence.

Timeline

7 segments
  1. The discussion distinguishes long-term passive rebalancing from short-term hedge-fund trading. Aggregate foreign net selling cannot identify either group’s share of activity or establish why semiconductor stocks were sold. Concentration limits require the relevant fund rules and index methodology; the same sector cap cannot be assumed for every foreign investor.

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Educational information only; not investment advice.