KRX:000660

KRX:000660 - SK Hynix Inc

OPPORTUNISTIC BUY [CAP] BUY?OPPORTUNISTIC BUYIN BUY ZONEAnalysis generated 2026-10-04Market data as of 2026-11-13Market data 2 days oldKRW 1.2m

Conviction

out of 100

Executive Summary

SK Hynix Inc (KRX:000660) is one of the world's largest memory semiconductor manufacturers, producing DRAM and NAND flash products, with a particular leadership position in high-bandwidth memory (HBM) used in AI accelerators. The company supplies memory components to global chip designers, hyperscalers, and system integrators, and is widely cited as a key beneficiary of the build-out of AI compute infrastructure.

The investment case rests on continued execution in HBM - particularly HBM4 shipments tied to the NVIDIA partnership and long-term customer agreements disclosed in recent quarters - and on premium-product pricing holding as AI-driven demand outstrips supply. The key near-term catalyst is the next earnings release, scheduled for 29 July 2026, which will test whether the Q3 profit beat reported in June 2026 is being sustained into the second half. The primary risk is a Chinese capacity buildout disclosed in the issuer's own risk factors that could erode memory prices if it ramps faster than demand grows.

OPPORTUNISTIC BUY. Conviction Score: 64/100. The view would change if upcoming quarterly results show a sequential decline in HBM revenue or gross margin, or if the NVIDIA partnership produces no incremental HBM4 orders.

Bottom line - OPPORTUNISTIC BUY at 64/100.

OPPORTUNISTIC BUY at 64/100. Not currently actionable.

IN BUY ZONEOPPORTUNISTIC BUY · 64/100

Business Model

SK Hynix generates revenue primarily through the design, manufacture, and sale of memory semiconductors. The product portfolio is dominated by two segments: DRAM, which accounted for the majority of sales, and NAND flash, with high-bandwidth memory (HBM) sold as a premium DRAM variant. HBM has become an increasingly important share of the mix, with management commentary in the June 2026 earnings summary attributing the record Q3 2026 profit and revenue to AI memory and premium product sales.

Customers are global and concentrated: major chip designers (including NVIDIA as a named HBM partner), hyperscale cloud operators, and consumer electronics and server OEMs. The customer base is therefore exposed to both AI infrastructure capex cycles and broader consumer electronics demand. The competitive moat sits in HBM technology leadership - SK Hynix has been the first to qualify each successive HBM generation with leading AI accelerator customers - and in the scale advantages of being one of three global DRAM suppliers. Reported retained earnings of ?52.58 trillion for the quarter ending 31 March 2026 indicate a substantial cumulative earnings base underlying the current capital structure.

Pricing and product mix are the dominant earnings levers. Because DRAM and NAND are commodity products, small shifts in industry capacity utilisation can move prices materially. The premium positioning of HBM, sold on long-term agreements rather than spot pricing, partially insulates a growing slice of revenue from short-term memory price swings.

Financial Snapshot

Price

KRW 1.2m

Market Cap

KRW 995.3bn

P/E Ratio

8.1x

52w High

KRW 3.0m

52w Low

KRW 384000.00

Distance from 52wH

-59.3%

Avg Volume

3368958

Currency

KRW

Recent Catalysts

[June 2026] - SK Hynix reported record Q3 profit and revenue, with management attributing the result to AI memory demand and premium product sales; the company's earnings summary highlighted a strong forward outlook. Source: Quartr (SK Hynix IR page).

[Q1 2026] - SK Hynix disclosed retained earnings of ?52.58 trillion in its balance sheet for the quarter ending 31 March 2026, reflecting cumulative profitability from the recent memory upcycle. Source: StockInvest.us earnings report summary.

[2 July 2026] - Yahoo Finance published trailing total return data for 000660.KS as of 2 July 2026, providing a reference point for shareholder returns over the prior twelve months. Source: Yahoo Finance.

[1 July 2026] - Morningstar analyst Jing Jie Yu issued a research note on SK Hynix referencing Korean government policy developments dated 29 June 2026, which appeared to feed into a revised outlook on the stock. Source: Morningstar equity research.

[29 July 2026] - The next scheduled earnings release for SK Hynix is 29 July 2026, per Investing.com's earnings calendar and TradingView's event listing. Source: Investing.com / TradingView earnings calendar.

Thesis Evaluation

Bull Case (47% weight)

HBM4 shipments to NVIDIA ramp on schedule, long-term customer agreements are honoured in full, and memory pricing remains firm as AI accelerator demand outpaces industry capacity additions. TTM earnings reported as $68.72 billion USD as of June 2026 continue to expand. Price target: KRW2600000 over a 12-month horizon.

Base Case (48% weight)

SK Hynix executes on its existing HBM and DRAM commitments, but Chinese capacity additions begin to weigh on commodity DRAM and NAND pricing in the second half of 2026, capping margin expansion even as HBM revenue grows. Price target: KRW2050000 over a 12-month horizon.

Bear Case (5% weight)

Chinese memory capacity comes on stream faster than expected and the NVIDIA HBM4 ramp slips, leading to commodity DRAM price erosion that outweighs premium-product gains and triggers a multiple derating. Price target: KRW1300000 over a 12-month horizon.

Weighted conviction:Bull (47%) x 100 + Base (48%) x 62 + Bear (5%) x 10 = 64/100. OPPORTUNISTIC BUY.

Key Risks

Chinese memory capacity buildout: Issuer risk disclosures flag Chinese manufacturers' capacity expansion as a threat to memory pricing; rapid ramp would compress DRAM and NAND margins. Estimated probability: 30%. Impact: severe.
HBM4 execution and customer concentration: A material portion of the bull case is tied to HBM4 shipments to NVIDIA and other hyperscaler customers; a delay or contract loss would directly impair the premium-mix thesis. Estimated probability: 20%. Impact: severe.
AI capex deceleration: Demand for HBM and AI memory is derivative of hyperscaler and AI accelerator capex; a slowdown in AI infrastructure spend would reduce order growth. Estimated probability: 25%. Impact: severe.
Memory price cyclicality: DRAM and NAND are commodity products and prices can swing sharply with utilisation changes, exposing earnings to short-term volatility. Estimated probability: 40%. Impact: moderate.
Korean won and macro exposure: SK Hynix reports in KRW but sells globally in USD, so FX moves, Korean policy developments, and global trade conditions all influence reported results. Estimated probability: 35%. Impact: moderate.

Who Should Own It / Avoid It

Ideal for: long-horizon growth-oriented investors with a minimum 12-18 month holding period, a high tolerance for semiconductor cyclicality, and a portfolio that can absorb 30-40% drawdowns; investors who already have conviction in the AI infrastructure theme and want concentrated memory exposure.

Avoid if: you require stable, dividend-led income, cannot tolerate semiconductor cycle volatility, or are uncomfortable with single-stock exposure to a commodity memory manufacturer with concentrated AI-customer dependency.

Recommendation

OPPORTUNISTIC BUY - 64/100. The combination of disclosed HBM/AI hard catalysts, a sub-10x P/E versus record earnings, and a forward earnings date on 29 July 2026 supports a constructive stance today. The call would be upgraded toward the high end of BUY if HBM4 shipments to NVIDIA are confirmed in the Q3 2026 results and memory spot pricing holds. The call would be downgraded if Chinese capacity ramps materially, the NVIDIA partnership produces no incremental orders, or commodity DRAM prices roll over ahead of the next earnings release. At the current price of KRW1216000.00 the shares sit inside our buy zone (below KRW1550000.00): the risk/reward on the scenario set clears our 2:1 threshold today.

The probability-weighted value across our three scenarios is KRW2271000.00, 87% above the current price of KRW1216000.00 - the market has not yet priced our probability-weighted view. Levels below are derived from the scenario targets and probabilities above, not from percentage offsets to today's price.

BUY

below KRW1550000.00 - below this level the upside to the base-case target (KRW2050000.00) is at least 2x the downside to the bear case (KRW1300000.00), the minimum risk/reward we require before committing new capital.

HOLD

between KRW1550000.00 and KRW2050000.00 - the base case is not yet fully priced, so existing holders are paid to wait, but new money gets no margin of safety in this zone.

REDUCE

above KRW2050000.00 - at this level the base case is fully reflected in the price and anything beyond it is paying for a bull scenario we weight at 47%.

SELL

if A confirmed loss of, or material order reduction from, a named HBM customer (notably NVIDIA) in the 29 July 2026 results, or evidence of Chinese memory capacity compressing DRAM spot prices by more than 20% quarter on quarter, regardless of price - the bear target of KRW1300000.00 is the backstop, not an arbitrary percentage stop.

Conviction Trend

Latest conviction: 64/100. Trend versus prior report: Initiation.

CONVICTION BUY (80+)BUY (65 - 79)OPP BUY (50 - 64)SPEC BUY (30 - 49)AVOID (0 - 29)

Report date	Conviction
2026-10-04	64

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Sources

Market data: DYOR HQ proprietary market data workflow.

Public sentiment and news flow: Public news flow from financial data aggregators, company earnings presentations and investor relations materials, regulatory filings referenced through third-party data providers, web research, and analyst commentary.

Primary source types: SK Hynix investor relations materials and earnings summaries (Quartr), balance sheet and earnings data (StockInvest.us), market data and trailing return history (Yahoo Finance, Investing.com, TradingView, CompaniesMarketCap), and third-party equity research (Morningstar).

Key sources

Analysis generated 2026-10-04. Market data as of 2026-11-13.