SK Hynix's Q1 2026 print (revenue KRW 52.6T +198% YoY, OP margin 72%, EPS KRW 57,228 +387% YoY, single-quarter EPS at 54% of prior FY26 base case) is a structural break from the memory-cyclical playbook. HBM4 has moved from 'product launch' to 'revenue run-rate': SK Hynix's paid samples cleared NVIDIA initial HBM4 validation (Feb 2026 per TrendForce, completion expected 2Q26 — Samsung passed final qualification first), showcased 16Hi 48GB HBM4 at 11.7Gbps at CES 2026 (industry-fastest stack-height), and holds ~2/3 of NVIDIA Rubin HBM4 allocation per TrendForce/UBS. SOCAMM2 192GB LPDDR5X mass production (April 20, 2026) for Vera Rubin servers extends the AI memory moat beyond pure HBM. The 'capacity-constrained, qualification-cadence' demand stack is reinforced by Big Tech blank-check fab co-funding offers ($22.8B Yongin Y1, May 2026) and Anthropic-Google ~$30B/5GW TPU commitment (May 20, 2026, within broader $200B Anthropic-Google Cloud commitment) extending the HBM order book through 2031. With analyst targets re-rating to KRW 2.8M-3.0M (KB Securities, SK Securities) and consensus near KRW 1.77M, the stock at KRW 2,425K (7/03, after a -16.9% pullback from the 6/26 KRW 2.92M peak in a memory-complex selloff) has fallen back to just below the KB/base target band and above consensus — Q1 economics validate a structural rerate, but the 'memory super-cycle peak' question dominates risk-reward. Primary watch: Samsung HBM4 volume ramp (now shipping for Rubin, holding first-qualified label) and Q2 2026 sequential pricing trajectory.
| Scenario | Prob. | Target | Driver |
|---|---|---|---|
| Bull | 35% | $3,520,000.00 | H2 2026 DRAM/HBM pricing holds within 5% of Q1 2026 peaks — TrendForce Q2 +58-63% QoQ forecast realized |
| Base | 50% | $2,520,000.00 | H2 2026 DRAM/HBM contract pricing moderates 15-25% from Q1 peak — TrendForce Q2 forecast partial fade in H2 |
| Bear | 15% | $1,400,000.00 | H2 2026 HBM/DRAM contract prices reverse 25%+ as Samsung achieves volume parity on HBM4 |
Live-price re-rate — spot -16.9% below 6/26 anchor (2,917,000 → 2,425,000), pullback into re-add zone just below base target; PWE -7.4% → +11.4%; conviction held at hold (not upgraded, Q2 pending); targets/EPS unchanged; ADR SEC-filed + state-capacity + antitrust folded in as sections
Live-price re-rate — spot +5.5% above 6/20 anchor (2,764,000 → 2,917,000), further above base target; PWE -2.2% → -7.4%; conviction held at hold; FRESH DART financials, targets/EPS unchanged
Live-price re-rate — spot +42.4% above 5/22 anchor (1,941,000 → 2,764,000), now above base target; PWE +39.2% → -2.2%; conviction held at hold; FRESH DART financials, targets/EPS unchanged
5/27 $1T market-cap milestone + 6/01 GTC Taipei Chey-Jensen meeting / iHBM HBM5 in-package cooling + 'Please Make More' demand signal + capacity-doubling — confirmatory; conviction unchanged; live-verified (SK Hynix newsroom / SEDaily / TechTimes / TrendForce)
HBM4 NVIDIA Vera Rubin final cert June 5 (SK 60-70%) + Samsung strike settled 6.2% (ratified May 27) — resolves two 5/22 open items; conviction unchanged; manual staleness-screen + adversarial verification
Phase A full rebuild — Q1 2026 blowout incorporation + HBM4 qualification + analyst target re-rates
GOOGL research-update — Anthropic $30B+ / 5 GW TPU commitment validates HBM order book visibility through 2031
SOCAMM2 mass production confirmation + Samsung strike proceeding cascade
Samsung labor talks collapse — 41K+ workers confirmed 18-day general strike May 21-June 7
SKHynix +11% premarket — 7% above bull target, HBM4 lead sustains premium
Seoul Economic Daily May 8: Big Tech offering blank checks for SK Hynix HBM fabs
Macro selloff (Iran Day 31, F&G 10, TurboQuant panic) + Q1 pricing data exceeding thesis assumptions
GTC 2026 Vera Rubin keynote (March 17) + DRAM pricing data revision
Complete research pipeline (initial deep research)
Positioning skews toward near-term upside