No De-specification in HBM Demand; Rebounding Memory Spot Prices Reinforce Expectations for Industry Upside

Overview

This week's themes focus on HBM specifications across the global memory industry, spot and contract prices, regional trade data, Taiwan technology company sales, financing by Phison and Silicon Motion, and the capital-return outlook for Samsung Electronics and SK Hynix. The core view is that AI infrastructure demand has not led to reduced HBM capacity in high-end GPUs, memory supply-demand conditions remain tight, and the price upcycle is likely to extend through 2H 2026 and into 2027.

Core views

The report disagrees with concerns that HBM will be “de-specified.” It believes the HBM4e/HBM5 product roadmap already points to 500GB to 1,000GB capacities, 8-hi TSV capacity is gradually shifting to 12-hi, and Rubin Ultra performance is materially constrained with 288GB to 500GB memory configurations; therefore, 1,000GB high-capacity memory is necessary for applications such as physical AI. Lower-end GPUs, TPUs, or ASICs may use 192GB to 288GB of HBM, but these are more likely to be used for inference or older applications. The report also observes roughly 10% to 20% price increases and signs of early pull-ins for HBM4 deliveries in 2H26.

Analysis framework

The report cross-validates the memory cycle, demand strength, and company-specific catalysts using product specifications and technology roadmaps, spot and contract price trends, channel checks, South Korean semiconductor exports and Chinese IC imports, Taiwan monthly sales, company quarterly results, and valuation multiples.

Methodology notes

• Industry Supply-Demand AnalysisMemory Price and Supply-Constraint Tracking

  Assess the degree of supply-demand tightness through changes in DRAM and NAND spot and contract prices.

  The report attributes rising prices to supply reallocation toward HBM and server DRAM, tight chip supply, and stronger demand from OEMs and module makers.

• Valuation AnalysisForward P/E Valuation

  Derive target prices by multiplying expected EPS for 2027–2028 by target P/E multiples.

  The report applies different forward P/E multiples to Phison, Samsung Electronics, Silicon Motion, and SK Hynix, comparing them with historical cycle valuations and profitability.

• Fundamental AnalysisFree Cash Flow and Shareholder Return Analysis

  Assess the scale of dividends and buybacks that can be supported by free cash flow.

  The report expects Samsung Electronics and SK Hynix may allocate approximately 50% of 2026 free cash flow to shareholder returns, and discusses the composition of dividends and buybacks.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Samsung Electronics

  Global leading supplier of DRAM, HBM, and NAND

  Strengths

  Benefits from the memory supercycle, AI chip demand, and potential special dividends and buybacks; both common and preferred shares offer direct memory exposure.

  Weaknesses

  EPS growth may slow after the 2026 cyclical upswing, and the valuation framework is relatively conservative.

  Comparison

  The report sets a W550,000 target price for common shares and W375,000 for preferred shares; preferred shares trade at a discount due to the lack of voting rights, but have dividends close to those of common shares and relatively higher yields.

  Risks

  Cuts in capital expenditure by major U.S. technology companies, oversupply caused by capacity expansion in 2026–2027, competition from Chinese manufacturers, and market-share losses.

• SK Hynix

  Core supplier of HBM and DRAM

  Strengths

  Leadership in high-end HBM, high margins, and AI-demand drivers; the report expects buybacks to account for a relatively high share of shareholder returns.

  Weaknesses

  High share-price volatility, with the market potentially becoming concerned early about a cyclical downturn in 2027 or 2028.

  Comparison

  The report derives a W3,000,000 target price using an 8x P/E multiple on expected 2027–2028 EPS, below the fair range of 9x to 11x for global DRAM peers.

  Risks

  AI chip demand falling short of expectations, a memory-industry downturn, and oversupply following global capacity expansion.

• Phison Electronics

  Supplier of NAND controllers and enterprise storage solutions

  Strengths

  Strong 2Q26 revenue and gross margin, with AI ecosystem modules accounting for 38% of sales and enterprise growth opportunities in eSSD, aiDAPTIV, and boot drives.

  Weaknesses

  R&D spending increased nearly sevenfold year over year, 2Q26 operating margin was below the report's expectation, and convertible bonds create approximately 3% potential dilution.

  Comparison

  The report derives an NT$4,000 target price using a 24x P/E multiple on expected 2027–2028 earnings, above its historical average valuation in the mid-to-high teens.

  Risks

  Unexpected NAND price adjustments or an industry downturn, gross-margin declines, and inventory-expansion risk.

• Silicon Motion

  Memory controller supplier

  Strengths

  Growing demand for enterprise solutions, with convertible-bond financing supporting business expansion and expected share dilution remaining limited.

  Weaknesses

  Sensitive to the NAND market cycle and enterprise customer orders.

  Comparison

  The report derives a US$450 target price using a 38x P/E multiple on expected 2027–2028 earnings, above the historical average but close to the high range seen in 2023–2025.

  Risks

  Reductions in AI capital expenditure by U.S. hyperscale cloud companies, competition with Phison and NAND manufacturers, geopolitical risks, and commodity NAND exposure.

Key data

• DRAM Spot Prices16Gb DDR4 and DDR5 each rose 2% during the week, marking 18 consecutive weeks of increasesThe report states that prices were driven by supply allocation toward HBM and server DRAM.
• NAND Spot Prices1Tb NAND spot prices rose about 10% week over weekThe increase was stronger than market expectations for flat to modestly declining prices.
• South Korean Semiconductor ExportsUS$9.95bn in the first 10 days of August, down 11% month over month and up 155% year over yearSequentially weaker but still at a high level, with strong year-over-year growth.
• China IC Import ValueUS$63.8bn in July 2026, up 71% year over yearThe report states that import value reached a record high.
• China IC Import Volume60 billion units in July 2026, up 9% year over yearReflects continued growth in chip import volumes.
• Phison 2Q26 RevenueNT$68bn, up 66% quarter over quarter and 279% year over yearAbove market and report expectations, but R&D expenses rose significantly.
• Phison Convertible BondUS$0.8bn, with potential dilution of about 3%Proceeds are intended for NAND inventory expansion and rapidly growing enterprise solutions.
• Silicon Motion Convertible BondUS$1.0bnThe report believes incremental share dilution is limited because the conversion mechanism is linked to stock-price performance.
• HBM4 Delivery PricesUp about 10% to 20% in 2H 2026The report observes demand for early pull-ins.

Impact & implications

If high-end AI accelerators continue to adopt high-capacity HBM, alongside DRAM and NAND prices remaining in a strong range, memory manufacturers, NAND controller suppliers, and enterprise SSD solution providers are likely to benefit in revenue, gross margins, and valuation. Special dividends or buyback plans from Samsung Electronics and SK Hynix could also become near-term catalysts. On the other hand, financing to expand inventory increases companies' bets on sustained demand and also raises operating risks if prices reverse.

Risks

• Major U.S. technology companies or hyperscale cloud providers may unexpectedly reduce AI capital expenditure.
• Global memory supply could become excessive after increased capital expenditure in 2026–2027.
• DRAM, NAND, or HBM prices may decline more than expected.
• Competition from Chinese memory and chip manufacturers may intensify.
• Enterprise storage orders, long-term supply agreements, or AI server deployments may fall below expectations.
• Geopolitical, tariff, and China export-related risks.
• Valuation and share-price volatility risks for memory stocks under high earnings expectations.

What to watch

• HBM capacity specifications and supply-chain configurations for NVIDIA Rubin Ultra and subsequent GPUs/ASICs.
• HBM4 prices, delivery volumes, and early pull-in activity in 2H 2026 and 2027.
• Whether DRAM and NAND spot and contract prices can sustain their upward trend.
• Whether South Korean semiconductor exports and Chinese IC import data remain strong.
• Formal announcements of Samsung Electronics special dividends, buyback periods, and SK Hynix shareholder return plans.
• Use of financing proceeds, inventory changes, enterprise business orders, and R&D expenses at Phison and Silicon Motion.
• AI capital expenditure, long-term supply agreements, and memory procurement plans of major U.S. technology companies.