SK hynix Falls 33% Below Its ₩40T Buyback Price as Foreigners Dump ₩5.8T: What the Cancelled Shares Mean
📌 Buyback vs Rout at a Glance
First two cards are filed or exchange data. The third card is our arithmetic from those two figures; retired shares no longer exist, so the "gap" is an opportunity-cost measure, not a booked loss.
Three days after SK hynix retired 23,693,272 treasury shares bought for about ₩40.0 trillion, the stock closed at ₩1,132,000 on Friday, Nov 6, roughly 33% below the program's ₩1,688,426 average purchase price. A two-day, 18.91% slide driven by fears of US data-center rules, a KOSPI circuit breaker and about ₩5.76 trillion of foreign net selling in SK hynix alone over six sessions turned Korea's largest-ever buyback into a timing debate. Samsung Electronics, at ₩188,700, also trades well under the implied cost of its own ~₩15T repurchase. Here is what is confirmed, and what it means for the next round of shareholder returns.
1. What Happened: Circuit Breaker Friday
Reported FactsThe KOSPI closed at 5,059.69 on Nov 6, down 6.02%, after a 5.28% drop on Nov 5. It fell more than 8% intraday to 4,911.28, triggering a level-1 circuit breaker at about 9:03 a.m. and a 20-minute halt; a sell-side sidecar followed (Asia Today/UPI, FN News, Nov 6). The two-day decline was 10.98%, leaving the index 44.5% below its June 22 closing high of 9,114.55 (FN News, Nov 8).
Reported FactsSK hynix fell 10.44% to ₩1,132,000 and Samsung 6.35% to ₩188,700 (intraday low ₩179,200). Two-day losses were 18.91% and 13.44%. Single-stock leveraged SK hynix ETFs lost about 20% in one session. The trigger was the US tape: after the midterm results raised fears of tighter AI data-center regulation, the Philadelphia Semiconductor Index fell about 12.3% and Micron about 17.5% on Nov 5 (UPI; Hankook Ilbo).
2. The Buyback Math: ₩40T at ₩1.69M per Share
Reported FactsSK hynix's board approved a ₩40 trillion repurchase-and-cancel program on Aug 19, the largest share cancellation by a Korean listed company, alongside a shift in its return target to "over 50% of cumulative FCF" for 2025-2027 (SK hynix Newsroom). The company bought 23,693,272 shares on the open market between Aug 20 and Oct 23 for ₩40.04T, an average of ₩1,688,426, and set cancellation for Nov 5, cutting issued shares from 730,492,365 to 706,789,093 (−3.24%). SK Square's stake rises from 20.00% to about 20.67% (DART via Edaily, Oct 26).
AnalysisAt Friday's close the retired block would be worth about ₩26.8T, roughly ₩13.2T less than was paid. No loss is booked, because cancelled shares simply disappear, but it is the number critics will cite. The lasting effect is mechanical: with 3.24% fewer shares, each remaining share carries about 3.3% more of the same earnings.
💡 Market Analyst Takeaway
AnalysisBuying ₩40T of stock near a cyclical high looks poor on a three-month view, but the cancellation already happened and cannot be undone. The forward question is cheaper: SK hynix said it will keep considering further buybacks and cancellations, and at ₩1.13M the same won buys roughly 49% more shares than in August-October. If management follows through with a second tranche (not announced), the per-share effect would be materially larger than the first.
AnalysisBrokers framed the sell-off as a supply-and-demand event, not an earnings one. KB Securities said a "substantial portion of demand for 2027 has already been confirmed" (FN News). Our base case treats the rout as positioning and policy risk rather than a broken HBM cycle, but the US policy path is still unknown.
3. Comparison Matrix: SK hynix vs Samsung After the Rout
| Item | SK hynix | Samsung Electronics | Source |
|---|---|---|---|
| Nov 6 close | ₩1,132,000 (−10.44%) | ₩188,700 (−6.35%) | KRX via Asia Today |
| Two-day change (Nov 5-6) | −18.91% | −13.44% | FN News, Nov 8 |
| 2026 buyback size | ₩40.04T, 23.69M shares | ~₩15T, 56.85M shares | Edaily; Asia Business Daily |
| Purchase window | Aug 20 - Oct 23 | Aug 24 - Oct 6 | Edaily; Asia Business Daily |
| Average purchase price | ₩1,688,426 (filed) | ~₩263,900 (our arithmetic) | Edaily; our calc |
| Close vs average | −33.0% | ≈−28.5% | Our calc |
| Foreign net selling, Oct 30-Nov 6 | ₩5.76T | ₩2.39T | Hankook Ilbo / KRX |
| Foreign net selling, Nov 6 only | ₩1.82T | ₩94.8B | Hankook Ilbo / KRX |
Samsung's average price is derived from reported totals (~₩15T for 56.85M shares) and is approximate. All other rows are filed or reported figures.
Chart: (A) Nov 6 closes indexed to each company's 2026 buyback average; (B) KOSPI foreign net selling over six sessions, Oct 30-Nov 6. Sources: DART via Edaily, KRX, Hankook Ilbo; Samsung average is our estimate.
4. Who Is Selling: Foreign Ownership at a 13-Year Low
Reported FactsForeign investors were net sellers for six straight sessions from Oct 30, totalling ₩11.94T on the KOSPI, of which SK hynix (₩5.76T) and Samsung (₩2.39T) made up about two-thirds. On Nov 6 alone, they sold a net ₩2.77T, while institutions and retail investors were net buyers (Hankook Ilbo; Asia Today). Eugene Investment & Securities put foreign ownership of Korean semiconductor stocks at 46.6% as of Nov 5, the lowest since 2013 and 8.4 points below the July 2024 peak of about 55% (Hankook Ilbo).
AnalysisBrokers also cited hedge-fund liquidation and deleveraging (FN News). Forced selling tends to hit the most liquid, most-owned names first, which fits SK hynix taking the largest share. For foreign investors, a 13-year-low ownership level means positioning is already light; it does not by itself set a floor.
5. What to Watch Next
- Monday's open (Nov 9): whether foreign selling slows after six sessions and Korea's market stabilization steps.
- A second buyback tranche: SK hynix has said it will keep considering further repurchases and cancellations based on cash, market conditions and distributable profits. Nothing new has been filed yet.
- US data-center policy detail: KB Securities expects sentiment to shift once the policy direction becomes concrete.
- Q3 HBM share data later this month as a fundamentals check against the price action.
Related coverage: SK hynix unveils its ₩40T buyback and cancellation program, Blue wave hits Korea chips as US data-center rules scare HBM demand, and SK hynix and Samsung at 3x earnings.
Check the Primary Sources
Buyback filings, results and shareholder-return policy are on the official IR sites.
🔍 SK hynix Official IR: Disclosures & Returns 📊 Samsung Electronics Official IR
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