Rating: Cautiously Bullish (Previous: Cautiously Bearish) | Target Price: 2,000,000 – 2,800,000 KRW | Closing Price: 1,550,000 KRW (2026-07-28) | Margin of Safety: +29% (Benchmark Fair Value Floor vs. Current Price) | Time Horizon: 12–18 months
| Indicator | Previous (7/11) | Current (7/29) | Reason for Change |
|---|---|---|---|
| Stance | Cautiously Bearish | Cautiously Bullish | Stock -29% fell into old target range, current price below zero-growth EPV |
| Confidence | 0.55 | 0.60 | Valuation margin of safety improved substantially, but market panic extreme |
| Target Price Range | 1.50–1.95 million | 2.00–2.80 million | Ramp exit year anchor adjusted (HBM4 mass production confirmed raising exit multiple to 8x) |
| Valuation Judgment | Overvalued | Undervalued | 4.87x FY2026E P/E, below EPV, among lowest global memory stocks |
| Key Change | — | — | Q2 results confirm HBM4 mass production, CXMT IPO triggers panic selling, Korea discount widens after ADR listing |
Intraday Note (2026-07-29 13:53): Real-time price 1.302 million KRW, -16.0% from previous close. Drivers: (1) Q2 preliminary revenue 79.3 trillion vs consensus 83 trillion (-4.5%), OP 60.5 trillion vs consensus 64 trillion (-5.5%); (2) CXMT soared 466% on its STAR Market debut on 7/28, market cap exceeding 3.3 trillion RMB; (3) KOSPI plunged 10.84% on 7/28, eighth circuit breaker of the year; (4) Mirae Asset Securities cut target price from 4.20 million to 2.80 million. Valuation anchors in this report still based on 7/28 closing price of 1.55 million.
SK Hynix shares plummeted 29% in 18 days (from 2.18 million → 1.55 million), plus an additional 16% intraday on 7/29, cumulatively retreating 48% from the June high of 2.987 million. The market is pricing in a 2023-level memory cycle collapse. However, we believe the structural inflection in HBM makes such a collapse extremely unlikely – HBM already accounts for over 50% of DRAM revenue, more than 80% of 2027 HBM capacity is booked, and HBM4 mass production confirms share leadership. At just 4.87x FY2026E P/E, the current price is below the zero-growth EPV (2.06 million), offering ample margin of safety. Core risks – DRAM price normalization, Samsung's HBM4 catch-up, CXMT expansion – are real but already excessively discounted by the panic. Shifting from "avoid" to "buy on dips", target price 2.00–2.80 million KRW.
Key Evidence:
HBM share of DRAM revenue has risen to ~50%, with Q2 HBM shipment volume more than doubling YoY. HBM4 ASP is ~40-70% premium over HBM3E, and the next-gen HBM4E targets Rubin Ultra platform in 2027 (12 stacks per GPU vs. 8 stacks for Rubin), doubling TAM again. However, note: UBS (2026-07-15) forecasts Samsung and SK will each hold ~40% HBM bit share by 2027, a significant divergence from SK's current ~2/3 share claim – share assumptions are the most critical variable in this thesis and require close monitoring.
Key Evidence:
Q2 operational performance was strong: OPM 76.3% hit another all-time high, with both DRAM and NAND ASPs rising significantly. The market interpreted the -4.5% revenue miss and -5.5% OP miss as a cycle peak signal, but we believe this is more likely quarterly shipment volatility. However, the red team correctly points out: Given large ASP increases and relatively moderate revenue growth, bit shipments may have shown marginal weakness (similar to Q1 NAND bits -11%) – this is an important early warning sign that needs verification in the full Q2 report (expected mid-August).
Key Evidence:
Derivation of normalized EPS 200,000 KRW: Based on mid-cycle earnings after structural HBM volume growth – assuming revenue normalizes from FY2026E peak ~350 trillion to ~250 trillion (HBM continues growing + commodity DRAM price normalization), OPM declines from 76% to 30%, after-tax net profit ~146 trillion ÷ 730.5M shares ≈ 200,000 KRW/share. This is a conservative assumption – even at the 2023 cycle trough, SK lacked the HBM profit engine; today HBM provides a structural earnings floor far above historical cycles.
BNK Investment & Securities (2026-07-08, Hold, target 1.85 million) forecasts FY2027E EPS 214,642 KRW (-36%), FY2028E EPS 66,989 KRW (-69%). This is the most bearish credible forecast on the market. Even applying BNK's FY2027E forecast at 8x P/E = 1.72 million KRW, still above current price. We believe BNK may underestimate HBM's structural earnings support.
Key Evidence:
Even under a deep recession scenario (BNK FY2028E OP 51.96 trillion), net debt/EBITDA remains < 1x. SK weathered 2023 with net debt/EBITDA peaking at 4.5x while losing 9.1 trillion – the current balance sheet is far stronger. The 1,100 trillion KRW medium-to-long-term investment plan can be covered by operating cash flows, with no refinancing risk.
Key Evidence:
Price growth deceleration is normalization, not collapse – absolute levels remain historically high, and HBM capacity utilization makes commodity DRAM supply elasticity far lower than past cycles. However, the red team correctly warns: BNK forecasts 2027 DRAM ASP -22% YoY, NAND ASP -33% YoY, and LTAs have never been stress-tested in a downcycle – the "price protection" of LTAs may be overestimated. This is the core reason for our 0.60 confidence.
Key Evidence:
The CXMT threat is real but amplified by panic: its share is only 8%, no HBM technology, DDR5 only one generation behind but yield and scale gaps with the top three remain large. China's domestic DUV is still in early verification. The KOSPI leveraged ETF stampede is technical selling, not a fundamental signal. Multiple executives bought during the panic – directional signal, albeit small in value, has reference value. However, the red team correctly points out: CXMT's capacity ramp-up speed (target 17% of global DRAM supply) after raising $8.5 billion in its IPO is a capital catalyst event for China's semiconductor supply chain and should not be underestimated.
| Indicator (Unit: trillion KRW, unless otherwise noted) | FY2023 | FY2024 | FY2025 | FY2026 Q1 | FY2026 Q2 | Q2 QoQ | Q2 YoY |
|---|---|---|---|---|---|---|---|
| Revenue | 32.8 | 66.2 | 97.1 | 52.6 | 79.3 | +50.9% | +256.8% |
| Operating Profit | -7.7 | 23.5 | 47.2 | 37.6 | 60.5 | +61.0% | +557.2% |
| OPM | -23.6% | 35.5% | 48.6% | 71.5% | 76.3% | +4.8pp | — |
| Net Profit (attributable to parent) | -9.1 | 19.8 | 42.9 | 40.3 | 93.8 | +132.6% | +1,240.8% |
| Gross Margin | — | 48.1% | 60.4% | 79.3% | Not disclosed | — | — |
| Operating Cash Flow | 4.3 | 29.8 | 53.4 | 26.3 | Not disclosed | — | — |
| Free Cash Flow | -4.0 | 13.9 | 25.9 | 18.7 | Not disclosed | — | — |
| Total Cash-like Assets | — | 14.2 | 34.9 | 54.3 | ~69.4† | — | — |
| Interest-Bearing Debt | — | 22.7 | 22.2 | 19.3 | Not disclosed | — | — |
| Debt-to-Assets Ratio | 46.7% | 38.3% | 31.5% | 26.2% | Not disclosed | — | — |
| CapEx | — | 15.9 | 27.5 | 7.7 | Not disclosed | — | — |
† Net cash at end-Q2 ~69.4 trillion disclosed by management on Q2 call. Q2 data are preliminary/unaudited. "—" indicates data not available for that period or metric not applicable. OCF/FCF disclosed only in annual reports. Gross margin derived from annual/quarterly reports.
Explanation of indicator changes:
Q2 revenue 79.3 trillion, OP 60.5 trillion, both all-time highs – but slightly below market consensus (83 trillion/64 trillion). The miss is only 4.5-5.5%, within normal fluctuation range, and should not be interpreted as a confirmed cycle peak signal.
ASP: DRAM QoQ +30% (Q1 +60%), NAND QoQ +50%+, growth rates decelerating from peaks but absolute levels extremely high. HBM4 began mass production and shipments in Q2, yield approaching HBM3E maturity, ramping in 2H.
Key Q2 call info: 80%+ of 2027 HBM capacity booked; net cash increased to 69.4 trillion; HBM4E samples delivered, targeting Rubin Ultra by 2027; 321-layer NAND to account for 50% of domestic capacity by year-end. But specific shareholder return plan again absent – market disappointed; management reiterated "plan by year-end."
SK Hynix is a capital-intensive IDM (Integrated Device Manufacturer), covering full process from chip design, wafer fabrication, to advanced packaging. Core products: DRAM (including HBM) ~65-70% of revenue, NAND Flash (including eSSD) ~25-30%, others ~5%. HBM, as an advanced packaging subcategory of DRAM, is now the company's most important profit engine, accounting for ~50% of DRAM revenue. Customers are primarily global AI chipmakers (NVIDIA ~23.9% of total revenue) and cloud service providers. Revenue model is quarterly/semiannual contracts (not subscription), but LTAs (long-term supply agreements) lock in volume and price floors.
| Indicator | FY2023 | FY2024 | FY2025 | FY2026 Q1 |
|---|---|---|---|---|
| OCF / Net Profit (attributes) | -0.47 | 1.51 | 1.24 | 0.65 |
| FCF / Net Profit | 0.44 | 0.70 | 0.60 | 0.46 |
In loss-making FY2023, OCF outperformed net profit (depreciation added back); FY2024-2025 OCF coverage of 1.2-1.5x, healthy cash generation. FCF/net profit only 0.6x (FY2025), reflecting massive CapEx (27.5 trillion) consuming cash – but this is AI-driven capacity expansion, not maintenance spending. FY2026 Q1 OCF/net profit fell to 0.65, mainly due to working capital increase (receivables + inventories expanding with revenue), not earnings quality deterioration.
ROIC significantly exceeds WACC, indicating true value creation. HBM's high margins + technology barriers are the core drivers of ROIC.
FY2025 CapEx far exceeds depreciation – typical expansion phase characteristic. The company is in an AI-driven super-investment cycle (1,100 trillion KRW medium-to-long-term plan), with CapEx/depreciation > 2x meaning substantial capital committed to incremental capacity, not just sustaining existing capacity. This is reasonable given growing demand, but if AI demand slows, overcapacity risk exists.
| Commitment (Year) | Actual | Verdict |
|---|---|---|
| HBM3E leads AI memory market (FY2024 annual report) | FY2025 HBM revenue more than doubled YoY; HBM4 achieved world’s first mass production in September 2025 | Fulfilled |
| 2025 CapEx "moderately expanding" (FY2024 annual report) | FY2025 CapEx 27.5 trillion KRW (+72.6%), significantly exceeding expectations | Exceeded |
| Active share buyback & cancellation after net cash exceeds 100 trillion (2026-04-23 Q1 conference call) | Q2-end net cash 69.4 trillion, target not met, no buyback plan announced yet | In progress |
Verdict: Pragmatic — CEO Kwak Noh-Jung (곽노정) has a clear technology roadmap in AI memory; the generational progression of HBM3E→HBM4→HBM4E is on track and has repeatedly delivered ahead of schedule. However, the pace of shareholder return commitments lags market expectations.
Verdict: Neutral to friendly — dividends grow with earnings, some cancellation exists, but buyback intensity is far below market expectations given record earnings; large ADR issuance dilutes existing shareholders.
| Segment | Revenue Share | Gross Margin | YoY Trend | Business Logic |
|---|---|---|---|---|
| DRAM (incl. HBM) | ~65-70% | Undisclosed (est. 80%+) | ~+50% | HBM accounts for ~50% of DRAM revenue; HBM4 succeeds HBM3E to drive growth |
| NAND Flash (incl. eSSD) | ~25-30% | Undisclosed (est. 40-50%) | ~+20% | Enterprise SSD more than doubled; 321-layer NAND to account for 50% of domestic capacity by year-end |
| Foundry & Others | ~5% | Undisclosed | ~+10% | Includes Key Foundry; in March 2025, CIS business pivoted to AI memory |
Note: SK Hynix does not disclose segment gross margins. The above are estimates based on the company’s total gross margin and product mix. The company is classified as a single business segment (semiconductors); the above is a product-line breakdown.
Key profit driver: DRAM (especially HBM) – highest revenue share and gross margin far above NAND, contributing the vast majority of profits. HBM’s TSV stacking + MR-MUF advanced packaging gives SK a technology and yield premium.
Based on the financial reports reviewed, no obvious signs of financial engineering were found. FY2025 audit opinion was unqualified, with key audit matters including revenue recognition and inventory valuation – both standard for the industry.
| Metric | Multi-Period Data | Consistency with Management Explanation |
|---|---|---|
| OCF / Net profit attributable to parent | FY2023: -0.47 / FY2024: 1.51 / FY2025: 1.24 / Q1 2026: 0.65 | Company did not explain – Q1 ratio decline mainly due to working capital increase (receivables + inventory up ~6.2 trillion), consistent with revenue expansion; normal operating fluctuation |
| CapEx / Depreciation | FY2024: 1.38 / FY2025: 2.17 | Consistent with management’s "AI capacity expansion" narrative |
No material inter-period anomalies detected. The Q1 2026 OCF/net profit decline has a reasonable operating explanation (60% QoQ revenue expansion leading to working capital pre-investment).
| Metric | Value | Remarks |
|---|---|---|
| Stock Price | 1,550,000 KRW | Close as of 2026-07-28 |
| Market Cap | 1,132 trillion KRW (~$77.9 billion) | 730.5M shares (incl. ADR issuance) |
| PE (TTM) | 6.99x | FY2025 EPS 58,754 + Q1-Q2 2026; earnings base has structurally changed, percentile reference only |
| Forward PE (FY2026E) | 4.87x | Consensus EPS 318,226 |
| Forward PE (FY2027E) | 3.44x | Consensus EPS 451,138 |
| PB (adjusted for ADR) | 5.54x | BVPS ≈ 279,647 |
| PS (TTM) | 5.99x | TTM revenue 189.2 trillion |
| EV/Sales (FY2026E) | 3.0x | EV ≈ 1,090 trillion |
| Net Cash-like | 69.4 trillion KRW | Q2-end management disclosure |
| Company | PE (TTM) | PB | ROE | Revenue Growth | Differentiation |
|---|---|---|---|---|---|
| SK Hynix | 6.99x | 5.54x | Annualized >60% | Q2 YoY +257% | HBM leader, #2 in DRAM |
| Samsung Electronics (DS division) | ~12-15x† | 0.88x (overall) | ~41% | DS Q1 YoY +225% | #1 in DRAM, #3 in HBM |
| Micron Technology | 7.2x | 3.8x | ~60% | FQ3 YoY +346% | #3 in DRAM, fast HBM catch-up |
| Kioxia | N/A | N/A | N/A | N/A | NAND only, not comparable |
| Western Digital | ~8x | 2.5x | ~38% | Q3 YoY +45% | NAND only, not comparable |
† Samsung DS division PE is estimated based on overall 8.3x PE + DS division premium. SK Hynix’s PE is notably lower than Samsung DS division and close to Micron, but its HBM market share and technology leadership are far stronger than Micron.
At the current price of 1.55 million KRW, the stock trades at FY2026E PE of 4.87x. Backward derivation:
| Layer | Value/Share | Explanation |
|---|---|---|
| Asset Value (Floor) | 280,000 KRW | BVPS (adjusted for ADR), liquidation floor |
| EPV (Zero Growth) | 2.06 million KRW | Normalized EPS 200,000 ÷ 10% WACC + net cash 57,000 |
| Growth Option | Negative (current price < EPV) | Current price 1.55M < EPV 2.06M → market prices below zero growth |
Key insight: The current price not only fails to price in HBM growth options, it is 25% below zero-growth EPV. This means the market’s implied expectation is that SK Hynix’s future profitability will be lower than our normalized assumption (EPS 200,000; equivalent to ~2.5x FY2024 and ~3.4x FY2025, but far below current peak). In the context of a structural inflection in HBM demand, this is extremely pessimistic.
| Scenario | Probability | Fair Value Range | Key Driver |
|---|---|---|---|
| Bear | 25% | 685,000 – 1,200,000 KRW | AI demand falsified (CSP CapEx collapse), HBM share drops to 30%, DRAM ASP -30% YoY. Exit multiple 6x (anchored to cycle trough). |
| Base | 50% | 2,000,000 – 2,800,000 KRW | Structural HBM volume growth materializes: FY2028 exit annual EPS ~350,000 × 8x PE (anchored to Micron/Samsung historical mid-cycle PE) + discounted 2 years to 2.3M midpoint. |
| Bull | 25% | 4,000,000 – 5,500,000 KRW | AI super cycle extends to 2028+: HBM share maintains 55%+, FY2028 EPS ~550,000 × 12x (anchored to NVDA/TSMC post-inflection steady-state PE discounted 50%). |
Current price 1.55M location: Above the lower bound of the base case (2.00M) — odds favor upside (margin of safety +48%). The bear-case lower bound of 685,000 corresponds to an extreme AI falsification scenario (25% probability).
The bear-case lower bound (685,000 KRW) is below the most pessimistic published forecast on the market — BNK Investment & Securities (target 1.85M, Hold rating). BNK’s pessimism is based on FY2027-2028E earnings normalization (not AI falsification), while our bear case corresponds to the extreme scenario of AI demand fully falsified + HBM share collapse (25% probability), hence a deeper floor — reasonable as a stress test.
Undervalued. The quality (global HBM leader, OPM 76%, ROIC 28%, net cash) deeply diverges from the price (4.87x FY2026E PE). Target price range 2,000,000 – 2,800,000 KRW (base case), margin of safety +29%.
The global memory market is in an AI-driven super cycle. Gartner (April 2026) forecasts:
| Year | Global Memory Market Size | DRAM | NAND | HBM (Yole / Company estimates) |
|---|---|---|---|---|
| 2023 | ~$120B (trough) | $49.9B | $37.1B | ~$4B |
| 2024 | ~$170B | $91.6B | $63.4B | ~$17B |
| 2025 | $216.3B | $143.2B | $68.1B | ~$34B |
| 2026E | $633.3B (Gartner) | ~$418.6B (IDC) | ~$174.1B | ~$60B |
| 2027E | $748.1B | — | — | ~$80-100B |
| 2028E+ | — | — | — | $130B by 2033 (Bloomberg Intelligence) |
HBM is the fastest-growing segment in the memory market: 2024-2030 CAGR ~31-33% (Yole Group), expected to account for >50% of DRAM revenue in 2026. AI evolves from training to inference/Agentic AI, with per-GPU HBM capacity increasing from 80GB (H100) → 192GB (B200) → 288GB (Rubin) (3.6x); HBM4 bandwidth per stack rises from 1.2TB/s (HBM3E) to 22TB/s on Rubin (6.6x).
Driver trajectory: AI server shipments CAGR 50%+ (2025-2028) → NVIDIA Rubin platform GPU shipments ramp from 2026H2.
Unit usage change: Per-GPU HBM capacity 80GB(H100)→192GB(B200)→288GB(Rubin)→576GB(Rubin Ultra 12-stack HBM4E), doubling each generation.
Penetration ramp: HBM as a share of DRAM bit shipments from ~2% (2023) → ~6-8% (2026E) → ~15% (2029E) (Yole).
SK Hynix share: Overall HBM 58% (Counterpoint Q1 2026); NVIDIA Rubin HBM4 ~65-70%.
Demand cross-check: 2028 HBM market $86B × 50% SK share = $43B HBM revenue + other $30B = $73B total revenue ≈ 106 trillion KRW → OPM 30% → net profit ~22 trillion → EPS ~30,000 KRW. At exit multiple 8x = 240,000. But this is far below sell-side forecasts — indicating consensus is more optimistic than our demand chain calculation (sell-side FY2028E EPS ~67,000-90,000). Demand math supports HBM growth, but specific profit numbers are highly uncertain.
Upstream → Equipment (ASML EUV / Applied Materials / Lam Research) + Silicon wafers (Shin-Etsu/SUMCO) + Materials → Midstream → SK Hynix (chip design + wafer fab + TSV/MR-MUF advanced packaging) → Downstream → NVIDIA/AMD/CSPs (AI servers) → End users
SK Hynix controls the full value chain from wafer to HBM module, holding the strongest bargaining power in the value chain. HBM sold out for the full year + multi-year LTAs locked in, giving it a rare upstream negotiation advantage over downstream (including NVIDIA). Upstream equipment vendors (especially ASML EUV) have monopolistic pricing power, but SK can obtain some discounts through scale and long-term procurement agreements.
The industry is in the 3rd year of an AI-driven super upcycle. Historical DRAM upcycles typically last 18-24 months; this cycle, driven by structural AI demand, may extend to 2027-2028. Leading indicators: contract price growth decelerating from +90%→+58%→+13-18% (normal topping pattern); inventory at 7-9 weeks approaching warning level; CapEx/Revenue ~8% (below historical peak of 15-20%).
Regulatory direction: Overall favorable. US export controls on China weaken Chinese competition; South Korea’s K-NVIDIA plan (50 trillion KRW) strongly supports the sector; US CHIPS Act subsidies for packaging plants in the US.
| Dimension | Current Status | Historical Reference |
|---|---|---|
| Upswing duration | ~20 months (since 2024H2) | Typical upswing 18-24 months (2017-2018, 2021H1) |
| DRAM contract price increase | Q1 +90-95%→Q2 +58-63%→Q3 guidance +13-18% | Growth peaking and declining — classic late-upswing characteristics |
| Customer inventory | 7-9 weeks, approaching 8-week warning line | 10w+ = cycle top confirmed |
| CapEx intensity | ~8% of revenue (below historical peak 15-20%) | Better supply discipline than prior cycles |
| Utilization | 100% | Full capacity |
| Current percentile | Price/profitability at historical 90+ percentile; inventory/CapEx not yet in warning zone | This cycle’s key difference: structural AI demand + HBM capacity crowding |
| Company | Under Construction / Planned Capacity | Expected Delivery |
|---|---|---|
| SK Hynix | M15X (50K wafers/month mid-2027), Yongin Y1 (trial production Feb 2027), Cheongju P&T7 (2032) | 2027-2033 phased |
| Samsung | P4 expansion 60K wafers (mid-2026), P5 (2028) | 2026-2028 |
| Micron | Singapore HBM packaging (2027), Idaho/New York (2027-2030) | 2027-2030 |
| CXMT | 265K→500K wafers/month (2026→2028) | 2026-2028 |
TrendForce expects supply to overtake demand as early as 2028H2-2029, assuming AI demand growth does not decelerate. This is the biggest uncertainty in this thesis — if AI CapEx growth slows in 2027, oversupply could arrive earlier in 2028.
| Scenario | DRAM ASP Assumption | Revenue Impact | OP Impact | Net Debt/EBITDA |
|---|---|---|---|---|
| Mild correction (ASP -10%) | Q3 growth rate normalizes | -3.5% | -5.4% | < 0x (still net cash) |
| Cyclical correction (ASP -20%) | Back to near historical average | -7% | -10.8% | < 0x |
| Deep recession (ASP -30%) | Close to 2023 trough | -10.5% | -16.1% | < 0x |
| BNK bear (FY2028E EPS 67K) | DRAM ASP -32% YoY | -33% (vs 2026E) | -81% | ~1x |
Even in the deep recession scenario, Net Debt/EBITDA remains < 1x. Balance sheet resilience is at an all-time high.
Pro-cyclical Expansion — FY2025 CapEx +72.6%, a 1,100 trillion investment plan aggressively expanding at the cycle peak. No counter-cyclical buybacks/dividends. Assessment: Pro-cyclical Detraction — one of the risk factors in this thesis: if the cycle reverses, capacity built at the peak may face inadequate returns.
SK Hynix's stock price has retraced 48% from its June high, with the current price of 1.55 million already below its zero-growth EPV of 2.06 million. The market is pricing in a cycle collapse on par with 2023 — but HBM already accounts for over 50% of DRAM revenue, 80%+ of 2027 capacity is pre-booked, and HBM4 mass production is confirmed, making such a collapse highly unlikely.
Stance: Cautiously bullish. Valuation safety margin is ample (+29% to base-case midpoint), and the structural inflection point in HBM provides an earnings floor. However, confidence level is 0.60 — late-cycle phase + Samsung's HBM4 catch-up + CXMT expansion + extreme market panic may sustain near-term volatility.
Strategy: Accumulate on dips. If the price falls to the upper bound of the bear case (1.20 million, -23% from current price), the odds tilt further in favor of the bulls. Q3 earnings (October 2026) are a key validation point — need to see stable bit shipments and ASP deceleration within expectations.
This report is based on public information and industry data and does not constitute investment advice. Data as of 2026-07-29.