Daily Pulse: September 2, 2026
KOSPI -3.99% | KOSDAQ -2.10% | Foreign cash plus futures both net sold: KRW 1.86T (~$1.4B) cash, 8,107 contracts
The Number That Matters
SK Hynix and Samsung Electronics absorbed 75% of all foreign cash selling today: KRW 1.0685T (~$784M) and KRW 333B (~$244M) respectively, against a combined foreign buy side of KRW 67.3B (~$49M) across Jusung Engineering, LG Energy Solution and GS. That is not a rotation. It is a liquidation with noise on the buy side.
Where the Money Went
Foreign net cash selling of KRW 1.86T (~$1.4B) concentrated entirely in semiconductors and their holding structure: SK Hynix at KRW 1.0685T (~$784M), Samsung Electronics at KRW 333B (~$244M), SK Square at KRW 103B (~$76M). Foreign cash and futures moved in the same direction. Institutions sold KRW 2.27T (~$1.7B) net; the largest component was securities firms at KRW 1.58T (~$1.2B), which includes program trading and trust-based buybacks not disaggregated in this data. Pension funds sold KRW 119B (~$87M) net. Retail absorbed KRW 2.48T (~$1.8B), buying Samsung Electronics KRW 589B (~$432M) and SK Hynix KRW 483B (~$354M). Not one name appeared on both the foreign and institutional buy lists.
Why the Market Moved
1. Trump's comments downplaying Iran negotiations sent US 10-year yields to 4.79% and triggered simultaneous risk-off across Asian markets.
2. Foreign cash selling of KRW 1.86T (~$1.4B) paired with 8,107 contracts of futures selling in the same session compressed the index to KOSPI 6,562, a 3.99% decline.
3. SOX fell 2.14% overnight, removing any external floor for a semiconductor-led recovery.
The Uncomfortable Question
Retail absorbed KRW 2.48T (~$1.8B) on a session where foreign and institutional selling combined reached KRW 4.13T (~$3.0B). The investor deposit balance stood at KRW 99.7T (~$73.2B) as of August 31, with credit balances at KRW 32.8T (~$24.1B) on the same date; the deposit figure includes margin and collateral, so it is not a measure of buying capacity. The unresolved question is not whether retail has the balance. It is whether individual buyers can continue absorbing coordinated institutional and foreign liquidation in the same two names, session after session, without forced liquidation and unpaid balances shifting the price discovery mechanism itself. Neither of those two figures is in this report.
Key Disclosures Today
Hyundai Motor and Kia each filed preliminary operating results on DART.
KoreaAlpha Take
Four consecutive sessions of foreign cash net selling share a common structure: semiconductors absorb the bulk, retail takes the other side, and no institutional conviction name emerges to confirm a floor. Yesterday, foreign cash sold while futures also sold. Today, both legs moved in the same direction again. Whether that pairing reflects a single-session reaction to the Iran headline or something that persists beyond it is what the data alone cannot settle. The trade is simple: watch whether the foreign futures net trade returns to zero or positive on the next session where US 10-year yields pull back from 4.79%.
Data sources: Korea Exchange, DART, Naver Finance, Bloomberg
Research only. Not investment advice. KoreaAlpha does not provide personalised recommendations.
Flow figures are KRX investor-type trading value across all listed boards (KOSPI, KOSDAQ, KONEX), common stock only, excluding ETF, ETN and ELW; institutions = the KRX institutional total investor type.
