KT Corporation (KRX:030200, NYSE:KT) is the highest-yielding large Korean company a US investor can buy in a domestic brokerage account, and the yield is the reason almost anyone owns it. Which makes three mechanical facts about the New York listing worth more attention than they get, because each one changes what that yield is actually worth.
None of them is hidden. All three are in filings that exist only in Korean.
Each American depositary share of KT represents one-half of one common share. The NYSE lists it exactly that way.
So the ₩600 quarterly dividend the board declared on 14 July arrives as ₩300 per ADR. First-half basic earnings per share of ₩3,290 are ₩1,645 per ADR. The ₩53,300 Korean close corresponds to ₩26,650 of Korean stock per ADR.
The reason to spell this out is that there is no convention. Of the Korean companies with New York listings, KB Financial Group and Shinhan Financial Group are each one ADR to one common share. POSCO Holdings is one ADR to a quarter of a share. KT is one to a half. Four large Korean ADRs, three different ratios, and nothing in the ticker or the listing to warn you.
Anyone comparing a Korean price to a New York price, or a Korean dividend to a US screener's dividend field, has to look the ratio up each time. Ratios cancel out of yields and multiples, so the arithmetic doesn't break — but the per-share comparisons do, and they break silently.
The board declared ₩600 a share for the second quarter, with a record date of 29 July and payment on 13 August, totalling ₩142,578,831,000. Note that the declaration came two weeks before the record date, so you knew the amount before you had to own the stock — that's a recent improvement in Korean practice rather than a courtesy.
Note also the share count in that total: ₩142.6bn on 237,631,385 eligible shares, against 252,021,685 issued. The gap is treasury stock, which receives nothing. The filing warns that both the count and the total may change because the buyback is still running.
Annualise ₩600 and you get ₩2,400, which is about 4.50% against the ₩53,300 close. The filing's own figure, 1.09%, is the Korean convention: that quarter alone, measured against the average close over the week before the board met.
Then Korea withholds. Dividends paid to non-residents are subject to withholding at a statutory 20% before local surtax, capped at 15% for portfolio holders under the United States–Korea income tax convention. That takes 4.50% to roughly 3.82%.
Sixty-eight basis points a year. At KB Financial, whose gross yield is about 2.77%, the same 15% costs 42 basis points. At POSCO, on 2.44%, about 37. The tax is proportional to the yield, so the highest-yielding Korean stock is also the one where the Korean government takes the largest absolute share of a US investor's income — which is the opposite of how most people reason about picking the income name in a market.
There is a route around this in Korea, and KT doesn't have it. Cash distributed from a reduced capital reserve is treated as a return of capital rather than income, and the tax authority has held that such payments to non-residents aren't Korean-source dividend income and aren't withheld on. KB and Shinhan both restructured their balance sheets in 2026 specifically to create that capacity, ₩7.5tn and ₩9.9tn respectively. KT's share premium is ₩1,440.3bn against retained earnings of ₩15,470.0bn, and no reserve reduction has been disclosed. Whatever KT pays comes out of accumulated profit, and it is withheld on in the ordinary way.
The third fact is the one that would matter most to a US reader if anyone told them about it.
As of 14 July, KT held 13,889,877 of its own shares — 5.51% of the 252,021,685 issued. Over 2026 to that date, the company acquired 3,071,295 shares through a trust arrangement resolved on 10 February and running from 10 March to 9 September, and disposed of 108,040.
The retirement column in the same filing reads as a dash. Nothing has been cancelled.
That distinction is the whole difference between a buyback that returns capital and one that doesn't. Shares cancelled are gone: the count falls, every remaining share owns more of the company, and the effect is permanent. Shares held in treasury can be reissued — sold into the market, used in a swap, handed to employees. They reduce the dividend-eligible count while they sit there, which is a real if temporary benefit, and they can come back.
KT has committed to ₩750bn of repurchase and cancellation across 2026, 2027 and 2028. That's about 5.6% of the company over three years and it's a genuine commitment. But as of the most recent filing the buying has happened and the cancelling has not, and the gap between those two verbs is exactly the criticism Korean buybacks have earned over two decades.
The 14 July board meeting is a nice illustration, because it did both things at once.
It authorised further treasury purchases. It also approved the disposal of 3,109 shares, off-market, at ₩52,700 — ₩163,844,300 in total — to employees who had satisfied the vesting conditions on restricted stock units. The filing notes the amount is 0.001% of shares outstanding and describes the dilution effect as limited, which it plainly is. The broker was NH Investment & Securities. The underlying retention and disposal plan was approved at the annual meeting on 31 March.
Three thousand shares. A company with a ₩13.4tn market capitalisation filed a formal material-event report to move ₩164m of stock to its own staff, and disclosed the broker.
That's the texture of Korean disclosure, and it's also the point: KT's treasury account is an operating inventory that buys, holds and pays out, not a one-way path to retirement. A US investor reading "₩750bn buyback" and picturing an S&P 500 repurchase authorisation is picturing something with a different mechanism behind it.
The first cancellation filing under the ₩750bn programme, and its date. A 주식소각결정 — share cancellation resolution — is a separate, specific disclosure in Korea, the same form KB and Shinhan each filed in July for ₩700bn apiece. Until KT files one, the programme is an intention supported by an accumulating treasury balance.
Second, the treasury holding against 13,889,877 shares once the trust arrangement expires on 9 September. If the number keeps climbing through the fourth quarter without a retirement, the 5.51% becomes 6% or more of a company that is simultaneously holding its dividend through a 35% earnings decline.
Third, and least likely, any disclosure of a capital reserve reduction. It would be a change of policy rather than a change of business, and for a US holder of the ADR it would be worth roughly 68 basis points a year — more than most of the operating variables anyone actually models.
kstock reads DART every morning and writes up what moved — the contract, the buyback, the number that does not add up. The daily post and a Saturday roundup, by email.