The Short Answer
SK Hynix (KRW 40.00tn) and Samsung Electronics (KRW 15.00tn) filed the same legal instrument with Korea's Financial Supervisory Service electronic disclosure system (DART): a treasury share acquisition decision — 자기주식취득결정.
The entire difference sits in Field 5, the stated acquisition purpose (취득목적):
- SK Hynix: 자기주식 소각을 위한 주주가치 제고 — enhancing shareholder value through cancellation of treasury shares. The shares are destroyed; share count falls permanently.
- Samsung Electronics: 임직원 주식보상 — employee and executive share-based compensation. The shares fund performance incentives (성과인센티브, 특별경영성과급) and ultimately return to the float.
So adding the two together and calling it "Korean memory returns KRW 55tn to shareholders" is a category error. Samsung's KRW 15tn does not reduce share count — it is employee compensation paid out of company cash.
The Two Filings, Field by Field
| Filing field | SK Hynix | Samsung Electronics |
|---|---|---|
| Filing date | 2026-08-19 | 2026-08-21 |
| Receipt no. (rcp) | 20260819000254 | 20260821000616 |
| Legal type | 자기주식취득결정 | 자기주식취득결정 (identical) |
| Shares to acquire | 24,070,000 | 53,285,968 |
| Amount | KRW 40,004,340,000,000 | KRW 14,999,999,992,000 |
| Field 5 — purpose | Cancellation (소각) | Employee comp (임직원 주식보상) |
| Method | On-market purchase (장내매수) | On-market purchase (장내매수) |
| Broker(s) | SK Securities | Samsung Securities, Shinhan Securities, KB Securities |
| Acquisition window | 2026-08-20 – 2026-11-19 | 2026-08-24 – 2026-11-21 |
| Reference price used | KRW 1,662,000 (08-18 close) | KRW 281,500 (08-21 close) |
| Separate cancellation filing? | Yes — a 주식 소각 결정 filed the same day | No |
SK Hynix's Field 11 (other reference matters) states plainly that this acquisition is made for the purpose of cancellation, that the company will cancel all acquired treasury shares as soon as possible after the acquisition window closes, and directs readers to the separate 주식 소각 결정 (share cancellation decision) disclosed the same day.
Samsung's Field 11 states that the shares are acquired as the funding source for share-based compensation (주식기준보상) — performance incentives and special management performance pay — to motivate employees and executives.
Both statements are the companies' own words. No interpretation is required to tell them apart.
Why the Announced Share Count Is Not the Final Number
Both filings fix the won amount, not the share count. Each filing says so explicitly in Field 11: the share figure is derived from the closing price on the day before the board resolution, and the actual number acquired will vary with the share price.
That means the market rewrites the real size of both programs every day. Recalculated at the 2026-08-26 Korean close:
| SK Hynix | Samsung Electronics | |
|---|---|---|
| Reference price | KRW 1,662,000 | KRW 281,500 |
| 2026-08-26 close | KRW 1,688,000 | KRW 261,500 |
| vs. reference | +1.56% | −7.10% |
| Announced shares | 24,070,000 | 53,285,968 |
| Implied at today's close | ~23,699,254 | ~57,361,377 |
| Difference | −370,746 shares | +4,075,409 shares |
| % of shares outstanding (announced) | 3.295% | 0.911% |
| % of shares outstanding (at today's close) | 3.244% | 0.981% |
Shares outstanding are taken from each filing's own "1% of total issued shares" line: SK Hynix 7,304,923 → 730,492,300; Samsung 58,462,786 → 5,846,278,600.
Both programs are drifting in the direction that is worse for shareholders:
- SK Hynix's stock rose above its reference price, so the same won buys fewer shares — implied cancellation slips from 3.295% to 3.244% of share count. The more it rises, the less gets cancelled.
- Samsung's stock fell below its reference price (it dropped 8.70% on 08-24, precisely from KRW 281,500 to KRW 257,000), so the same won buys more shares — roughly 4.1 million additional shares of employee compensation will eventually flow back into the float. The more it falls, the more shares come back.
Final counts are only fixed by the correction filings after each window closes (2026-11-19 and 2026-11-21 respectively). Until then, treating "3.295% share count reduction" as an accomplished fact is premature.
The 2026-08-26 Korean Close: Two Green Candles of Different Quality
Both memory names closed higher, but the buying underneath them was structurally different. Zero-sum decomposition by investor type (foreign + domestic institutions + everyone else = 0):
| Samsung (005930) | SK Hynix (000660) | |
|---|---|---|
| Close | KRW 261,500 | KRW 1,688,000 |
| Change | +1.75% | +0.60% |
| Volume | 19,532,523 | 2,923,810 |
| Foreign net | +2,518,326 | −227,762 |
| Domestic institutions net | +503,532 | +2,290 |
| Everyone else (retail etc.) | −3,021,858 | +225,472 |
| Foreign ownership | 46.69% | 50.69% |
- Samsung's +1.75% was bought up. Foreign investors turned net buyers for the first time in three sessions (+2.52M, after −6.88M on 08-24 and −5.00M on 08-25), with retail net selling 3.02M shares into it.
- SK Hynix's +0.60% came from an absence of selling. Foreign investors were still net sellers, but only 227,762 shares — 7.79% of volume, versus 30.63% on 08-25 and 22.86% on 08-24. Selling intensity fell roughly 80%.
Same day, same investor class, opposite directions: foreign capital is not exiting Korean memory, it is rotating within the sector. Caveat: foreign ownership still sits at 46.69% and 50.69%, so the supply of potential sellers is far from exhausted, and one session is not a trend.
The US Leg
Last fully settled session (2026-08-25 close): Micron 932.97 (+2.48%), SanDisk 1,480.77 (−0.83%), SMH 555.82 (+1.65%), NVIDIA 213.05 (+2.19%), AMD 479.18 (+4.91%), TSMC 417.41 (+1.78%), Broadcom 356.74 (−0.56%).
Intraday snapshot — NOT settled. As of 2026-08-26 22:30 Beijing / 10:30 US Eastern, US markets were still open and these prints are not closing values: Micron 929.24 (−0.40%), SanDisk 1,463.63 (−1.16%), Western Digital 461.14 (+2.31%), SMH 551.42 (−0.79%), QQQ 708.71 (−0.28%).
US and Korean figures belong to different trading days and are not compared side by side.
What Would Falsify This
The conclusions above carry explicit break conditions:
- Correction filings within the acquisition windows (SK Hynix through 2026-11-19, Samsung through 2026-11-21). Once actual acquired share counts are disclosed, the "implied at today's close" row should be replaced with actuals.
- A matching cancellation filing from Samsung. If Samsung separately files a 주식 소각 결정 during its window, the conclusion that its KRW 15tn does not shrink share count must be rewritten. As of 2026-08-26, no such filing exists on DART.
- Continuity of Korean foreign flows. If Samsung's foreign flow swings back to million-share net selling next session, 08-26 was a cover-back inside an ongoing reduction, not the start of intra-sector rotation.
Sources and Methodology
- Corporate actions: primary filing text from Korea's DART electronic disclosure system, receipt numbers 20260819000254 (SK Hynix) and 20260821000616 (Samsung Electronics). Amounts, share counts, stated purposes and reference prices are read directly from the filing fields, not from secondary summaries.
- Korean prices and investor-type flows: KRX settled values for 2026-08-26, full 8-name sample. ⚠️ The exchange makes small post-close revisions to denominator fields such as volume and foreign ownership percentage; net buy/sell share counts for foreign and institutional investors are not affected.
- FX: the body deliberately avoids KRW/USD conversion to prevent introducing an FX timing error. For order-of-magnitude reference only, at 2026-08-26 rates KRW 40.00tn ≈ $28.9B and KRW 15.00tn ≈ $10.8B.
- US equities: settled figures are the 2026-08-25 close; the intraday snapshot is timestamped in place above.
- This is public-layer research containing only public data, facts and stated methodology. It contains no position, sizing or trading information and is not investment advice.
Generated 2026-08-26 22:30 Beijing time.