· week · by The Reader
SKHY memo (bullish 62), Sep 5, 2026
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Summary
SK hynix is earning at a level its filings show is without precedent: Won 79.3 trillion of revenue and Won 60.5 trillion of operating profit in the second quarter of 2026, a 76 percent operating margin, disclosed in the semi-annual business report furnished on Form 6-K on August 18, 2026. The board is returning cash into that strength, approving a Won 40 trillion treasury share acquisition and cancellation on August 19, which is the single fact that carries the view.
Variant view
The market treats memory as a cycle to be sold near peak margins, and the stock's path supports that reading: it printed its 52 week low of 126.79 on July 29, the day of the second quarter release, before recovering to 177.00 on September 4. The memo does not disagree that margins are cyclical. It disagrees on timing, because the company itself is buying back roughly 3.3 percent of shares outstanding and describing the price as undervalued relative to intrinsic value, while committing multi-year capital to AI memory capacity. That is a capital allocation signal from the party with the best view of the order book.
Evidence
The semi-annual business report on Form 6-K filed August 18, 2026 reports second quarter 2026 revenue of Won 79,318,746 million, up 50.9 percent from the first quarter and 256.8 percent from the second quarter of 2025, with operating profit of Won 60,542,608 million and a 76 percent operating margin. The company attributes this to continued price increases in both DRAM and NAND, led by server DRAM and enterprise SSDs, under a constrained supply environment. The same figures appear in the preliminary results 6-K furnished July 29, 2026.
On August 19, 2026 the board resolved to cancel 24,070,000 common shares against 730,492,365 issued, an estimated aggregate value of Won 40,004,340,000,000, with open market acquisition between August 20 and November 19, 2026. The accompanying fair disclosure 6-K states the 2025 to 2027 policy is to return over 50 percent of cumulative free cash flow, and that the board considers the recent share price undervalued relative to intrinsic value.
Capacity commitments are large and explicit. The July 22, 2026 6-K raised the P&T7 advanced packaging investment in Cheongju to Won 7,093.1 billion, 5.88 percent of total equity, citing an accelerated cleanroom opening schedule. The June 29, 2026 disclosure summarized in the semi-annual report sets out roughly Won 600 trillion for Yongin, Won 100 trillion for Cheongju and Won 400 trillion for a southwestern cluster over many years.
Two figures argue for caution rather than enthusiasm. DRAM market share was 29.1 percent in the three months to March 31, 2026 against 34.8 percent for full year 2025, per IDC data cited in the same report. And second quarter profit before income tax of Won 122,708,355 million far exceeds operating profit of Won 60,542,608 million, so more than half of pretax income came from items the retrieved text does not identify. Headline net income of Won 93.9 trillion should not be annualized.
Recent filings are mostly housekeeping and rumor control. The September 4, 2026 6-K clarifies that no decision has been made on a reported Won 5 trillion pre-IPO raise at Solidigm, and the August 21 6-K says the same about a reported semiconductor facility in Japan. Neither adds fundamental information, and both indicate the company is in an expansion posture that will consume cash.
Bear case
A 76 percent operating margin is a cycle artifact, not a business model. Memory prices set the entire P and L, and the semi-annual report itself describes an industry of repeated boom and bust in which supply cannot be adjusted quickly. DRAM share has already slipped from 34.8 percent to 29.1 percent, suggesting competitors are gaining as capacity arrives. Against that, the company is committing roughly Won 1,100 trillion of long-dated cluster investment and repurchasing Won 40 trillion of stock after a 23 percent move in thirty days, which is exactly the behavior that looks unwise if pricing rolls over in 2027. The buyer of the shares today underwrites both peak pricing and peak capital intensity.
What would change my mind
First, a third quarter disclosure showing sequential revenue or operating margin decline driven by ASPs rather than volume, which would date the peak. Second, a further step down in DRAM share below the 29.1 percent reported for the first quarter of 2026 alongside a change or suspension of the treasury share acquisition program before its November 19, 2026 end date.
Market data as of the close on . Prices are end of day, not live.
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