Daily Pulse: August 12, 2026
KOSPI +3.68% | KOSDAQ +0.12% | Foreign net buy KRW 2.84T (~$2.0B), Samsung Electronics and SK Hynix took KRW 2.33T (~$1.65B) of it, on a report carrying no amount and no date
The Number That Matters
Foreign investors bought KRW 2.84T (~$2.0B) of Korean equities today. KRW 2.33T (~$1.65B) of that, 82%, went into Samsung Electronics and SK Hynix. Yesterday's open question was whether SK Hynix would join Samsung Electronics on the foreign buy list. It did, and it brought most of the day's foreign flow with it.
Where the Money Went
Foreign buying: Samsung Electronics +KRW 1.48T (~$1.05B), SK Hynix +KRW 852B (~$601M), Samsung Electro-Mechanics +KRW 176B (~$124M), LG Electronics +KRW 115B (~$81M), SK Square +KRW 101B (~$71M). Institutions added KRW 528B (~$372M) net. Retail sold KRW 3.19T (~$2.25B). Investor deposits stood at KRW 100.7T (~$71.0B) as of August 10, a series published with a lag.
Neither memory name held its high: Samsung Electronics closed +6.68% and SK Hynix +5.54%, both after trading up more than 8% intraday.
Why the Market Moved
1. The Asia Business Daily reported that Temasek is preparing direct equity investments in Samsung Electronics and SK Hynix, the Singapore state fund's first direct entry into the Korean market, previously reached only through private equity. No amount and no timing were disclosed. Bloomberg carried the reaction.
2. Foreign and institutional capital took the same side while retail supplied KRW 3.19T of stock. The absorbing hand was larger than the exiting one.
3. SOX rose 0.87% overnight, a supportive backdrop, not an explanation for a 3.68% index day.
The Uncomfortable Question
The last session in which both memory names led the foreign buy list was August 5. The four sessions since went to autos, holdcos and defence. Today is not a trend resuming but a return, on a single report with no figure and no timetable in it. Both stocks gave back part of the move before the close. That is the shape of a crowded event trade, not of a re-rating.
KoreaAlpha Take
Retail sold KRW 3.19T (~$2.25B) today and foreign and institutional capital took the other side, concentrated in two stocks. That is not a relief rally. That is a transfer of ownership, and the buyers moved on a headline, not on a filing.
The unresolved question is whether reported sovereign wealth interest unlocks sustained foreign re-allocation into Korean memory, or whether the bid is the headline itself. A fund that has never bought Korean equities directly does not build a position in one session. If the interest is real, the flow will not need a second story.
The trade is simple: watch whether foreign net buying in Samsung Electronics and SK Hynix survives a session with no Temasek headline in it.
Data sources: Korea Exchange, DART, Asia Business Daily, Bloomberg, Naver Finance
Research only, not investment advice. KoreaAlpha does not provide personalised recommendations.
