SK Hynix's $29bn cancellation is a price bet, and the 9.75% drop made it cheaper

SK Hynix's board approved a 40 trillion won buyback, about $29 billion, on August 19, 2026, and said it will cancel the stock rather than hold it as treasury shares ^[1][3]. Management's stated reason is that the market prices the company below its worth, and the decision landed on a day the Seoul-listed shares closed 9.75% lower at 1,500,000 won ^[14][9].

It would be the largest treasury cancellation ever initiated by a listed South Korean company ^[2]. The arithmetic in the filing uses the pre-vote close of 1,662,000 won: 40 trillion won buys roughly 24.07 million of the 730,492,365 shares outstanding, or about 3.3% ^[4]. At the post-slide close, the same money buys about 26.67 million shares, or 3.65% ^[1]. That is roughly 2.6 million more shares and about 0.35 percentage points more of the company for identical spend ^[2]. A buyer with a fixed won budget gets paid to be disliked.

Cancellation is the load-bearing detail. Retired shares cannot be reissued for compensation or as acquisition currency, so the count falls permanently and each remaining holder's claim rises ^[3]. That is a harder commitment than a treasury purchase, and it is being funded out of the return framework SK Hynix first outlined in November 2024, which promised payouts from 50% of cumulative 2025 to 2027 free cash flow ^[6]. The filing changes the wording from "within 50%" to "over 50%" ^[7], pairs buybacks with cash dividends, and says fixed and special dividends are under consideration ^[8]. The company put its net cash flow at almost 69 trillion won at the end of Q2 2026 ^[12]; the buyback is about 58% of that figure ^[4]. The implied conversion in the announcement is roughly 1,379 won to the dollar ^[3].

The risk is not the mispricing thesis, it is the cycle. DRAM and NAND are capital-hungry businesses, and the source that reported the filing notes spending worries hanging over the sector even as AI demand runs ^[15]. Committing more than half of a three-year cash flow stream to distributions is a statement that the operator does not expect to need it for capacity.

The two listings disagreed. American depositary shares traded more than 6% higher before the bell at about $163.98 and hit an early high of $163.80, up 5.25% ^[10]. The ADRs began trading on July 10, 2026, are down more than 7% since, and have ranged between $194.80 and $124.80 ^[11]. That places $163.98 about 15.8% below the high and 31.4% above the low ^[5]. The account does not reconcile the timing of the Seoul close against the filing, so read the divergence as a sequencing artefact rather than a split verdict.

One caution on sourcing: this is a single account, and the publisher's own headline says "$28.6 million" while its body says $29 billion ^[16]. The share counts and prices are internally consistent; the headline is not.

Purchases begin August 20 and are scheduled to run about three months, with cancellation following completion ^[5]. Watch the third quarter earnings release, where SK Hynix says the scale and timing of additional returns will be set after board approval ^[13], and whether a fixed dividend appears alongside the repurchase ^[8]. Then check the next disclosed share count against 730,492,365 ^[4]. A cancellation that does not show up in the count is a press release.