The HBM leader, now trading in New York.
SK hynix makes most of the high-bandwidth memory stacked next to NVIDIA's AI chips. Revenue rose 257% to ₩79.3 trillion (about $53B) last quarter at a 76% operating margin, and HBM4 entered mass production. The Nasdaq ADS listed in July in a record $26.5B offering and trades at a large premium to the Seoul shares, so the two prices are not interchangeable.
Price, last 12 months
Daily closes of the Nasdaq ADS with the 50-day average. The ADS began trading on July 10, 2026, so the history is short; the technical section below can also show the Seoul listing.
Revenue and margins, by quarter
Revenue in US$ millions, converted from won at each quarter's average rate, with gross margin on the right axis (blank where the source shows none). EPS is per ADS (one-tenth of a share).
| Quarter | Ended | Revenue, US$M | YoY | Gross margin | Op. margin | EPS (GAAP) |
|---|
Watch list
What moves the thesis, sorted by direction.
HBM leadership
SK hynix holds roughly 60% of HBM supply and is the lead supplier to NVIDIA. HBM4 is in mass production with yields near mature HBM3E, and HBM4E samples have shipped.
Contracted demand
Long-term supply agreements with about 10 customers, with DRAM bit shipments guided up about 10% in Q3 and demand growth in the mid-20s for the year.
ADS premium
The ADS trades about 35% above the Seoul shares after currency conversion (₩1,681,000 ÷ 10 ≈ $124 vs $169). The premium topped 50% in July and could narrow.
One-off gains
Q2 net profit of ₩93.9T included ₩63.3T of investment gains, mainly the Kioxia stake sale, so trailing P/E flatters the business.
Memory cycle
SK hynix lost money for five straight quarters in 2022–23. Q2 2026 already missed consensus by about 5%, and HBM is sold on fixed contracts that lag spot prices.
Currency
Results are in won. The won strengthened from about ₩1,500 to ₩1,353 per dollar since June, which lifts dollar figures but trims won revenue from exports.
Calendar
Q3 2026 earnings
DRAM bit shipments were guided up about 10% sequentially, NAND up low single digits; HBM4 ramp is the key variable.
HBM4 ramp
Production ramps through the second half after first mass shipments in Q2.
HBM4E mass production
Samples completed in the first half of 2026; volume production targeted for 2027.
Sources
- 2Q26 results (SK hynix press release)
- 2Q26 earnings call: HBM4, Kioxia gain, net cash
- 2Q26 vs consensus and capex (Pomegra)
- Nasdaq ADS listing terms (CM Elite)
- ADR premium after listing (Ledger-Enquirer)
- Won exchange rate by quarter (Aju Press)
- Quarterly income statement in KRW (Stock Analysis)
- Price, market cap, beta and analyst targets: Yahoo Finance and Stocklake, as of Oct 9, 2026