Morgan Stanley sharply raises HDD cycle expectations, with STX and WDC target prices moving significantly higher

Overview

This report focuses on the HDD supply chain within North American IT hardware, with the core conclusion that the HDD cycle is entering its next leg higher. Based on channel checks over the past three weeks including the Taiwan AI Summit, COMPUTEX, and WDC's Asia roadshow, Morgan Stanley believes that cloud service growth and demand from AI inference/agents are expanding nearline HDD demand, while industry supply discipline remains strong, with the supply gap potentially lasting until at least CY28. As a result, the report significantly raises earnings forecasts and target prices for STX and WDC, and views HDD as one of its most preferred AI exposures within IT hardware coverage.

Core views

The report's core bullish thesis includes three points: first, demand is stronger than expected, with nearline HDD potentially facing a shortage of 300EB in CY26 and about 400EB in each of CY27 and CY28; second, pricing upside is expanding, with vendor target pricing rising from the current roughly $14.30-$14.90/TB to $25-$30/TB over the next 2-3 years; third, price increases will almost entirely convert into after-tax profit, implying very high EPS leverage for STX and WDC. The report believes that even under a base case more conservative than channel checks, STX and WDC FY28 EPS would still be about 70% above consensus.

Analysis framework

The report combines Asian supply chain and management channel checks, HDD supply-demand EB modeling, nearline price/TB assumptions, STX/WDC financial models, and P/E scenario valuation. The valuation methodology mainly applies target P/E multiples to CY27 EPS, with separate base, bear, and bull cases to assess the impact of nearline pricing, EB shipments, gross margin, cost declines, and buybacks on earnings and valuation.

Methodology notes

• Industry supply-demand researchAsian channel checks and management discussions

  Gather HDD demand, supply, inventory, and pricing information through the Taiwan AI Summit, COMPUTEX, and WDC's Asia roadshow.

  The report uses Asian channel checks over the past three weeks as key evidence supporting the upward revision, focusing on cloud services, AI inference/agents, CSP deployment rates, ODM inventory, and changes in LTA duration.

• Earnings sensitivity analysisNearline HDD price/TB scenario analysis

  Map nearline HDD price increases to STX and WDC revenue, gross margin, EPS, and buyback capacity.

  The report emphasizes that incremental price upside largely converts into profit, so the $25-$30/TB pricing scenario could drive a major step-up in STX and WDC EPS during CY25-CY28.

• Valuation frameworkCY27 EPS multiple valuation

  Use CY27 EPS and P/E multiples to set base, bear, and bull case valuations for STX and WDC.

  STX target price corresponds to 20.0x CY27 EPS of $51.67, with the bull case corresponding to 22.0x CY27 bull-case EPS of $65.74; WDC target price corresponds to 20.0x CY27 EPS of $32.29, with the bull case corresponding to 22.0x CY27 bull-case EPS of $41.80.

Asset mapping & comparison

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

• STX.O / Seagate Technology

  The report's most preferred HDD stock, maintained at Overweight and designated as Top Pick.

  Strengths

  HAMR customer repricing, faster cost declines over the next 3-6 months, more visible gross margin expansion, and AI-driven HDD demand growth.

  Weaknesses

  Valuation already carries a premium versus history, and its long-term relative attractiveness is weaker than WDC on some metrics.

  Comparison

  Relative to WDC, STX has greater tactical advantages, especially in near-term HAMR pricing and cost/TB improvement; however, WDC has slightly better long-term bull case upside and leverage characteristics.

  Risks

  HDD demand weaker than expected, slower-than-expected HAMR qualification, price normalization, eSSD substitution, and geopolitical and tariff costs.

• WDC.O / Western Digital

  A major beneficiary of the HDD upcycle, maintained at Overweight with a significantly higher target price.

  Strengths

  Competitiveness in high-capacity drives and UltraSMR, leadership in HDD revenue and profit share, lower leverage, and larger relative upside in the bull case.

  Weaknesses

  HAMR timeline lags STX, and near-term tactical catalysts may be weaker than for STX.

  Comparison

  Relative to STX, WDC has slightly better long-term valuation leverage and balance sheet advantages, but its near-term gross margin expansion and HAMR repricing trajectory are less clear than STX's.

  Risks

  Delays in HAMR mass production or qualification, fixed-cost deleverage, convertible dilution, tariff and geopolitical impacts, and weaker-than-expected HDD pricing or demand.

• Nearline HDD industry

  The report views it as the clearest AI exposure and earnings upgrade theme within its IT hardware coverage.

  Strengths

  Expanding demand from cloud services, AI inference, and agents; strong supply discipline; low inventories; and limited long-term substitute technologies.

  Weaknesses

  The industry remains highly cyclical and sensitive to cloud capex and CSP purchasing cadence.

  Comparison

  Relative to NAND/eSSD, HDD still has an advantage in TCO for cold data and high-capacity storage; however, NAND pricing and eSSD substitution risks still need to be monitored.

  Risks

  Reversal in cloud capex, disruption to the HDD oligopoly from new entrants or strategic alliances, eSSD substituting for some cold data demand, and vendor capacity expansion leading to supply-demand rebalancing.

Key data

• Report date2026-06-15The top of the report shows June 15, 2026 07:26 AM GMT.
• HDD demand growth40%-50% annuallyThe report estimates demand growth is significantly higher than supply growth.
• HDD supply EB growth30%-35% CAGRThe report believes the industry is maintaining supply discipline without large-scale new capacity additions.
• Supply gap300EB shortage in CY26; 400EB shortage in CY27; 400EB shortage in CY28The CY26 shortage is about 10%-15% of demand.
• Current nearline HDD price$14.30-$14.90/TBCorresponds to the blended nearline price per TB for STX and WDC.
• Vendor target nearline HDD price$25-$30/TBThe report clearly states this is target pricing, not already contracted pricing.
• STX target price$1,035 (previously $767)Corresponds to 20.0x CY27 EPS of $51.67.
• WDC target price$650 (previously $488)Corresponds to 20.0x CY27 EPS of $32.29.
• STX EPS revisionFY27 EPS $35.38; FY28 EPS $70.64FY27 is raised 11% from the previous $31.75, and FY28 is raised 30% from the previous $53.95.
• WDC EPS revisionFY27 EPS $22.40; FY28 EPS $43.47FY27 is raised 13% from the previous $19.89, and FY28 is raised 25% from the previous $34.87.
• Bull case valuationSTX $1,446; WDC $920If the more optimistic pricing channel checks materialize, the report believes bull case valuations could come into view.
• Relative to consensusFY28 base case EPS is about 70% above market consensusThe report believes the market still underestimates the durability of the HDD cycle and earnings power.

Impact & implications

If the report's thesis proves correct, the investment narrative for the HDD industry will shift from a simple cyclical recovery to a longer-duration theme driven by AI data center storage demand, supply discipline, and price re-rating. STX and WDC earnings forecasts could continue to move higher, and valuation multiples would still not appear expensive given strong EPS growth; at the same time, each increase in price/TB could amplify EPS leverage. However, the investment conclusion is highly dependent on cloud capex, the real HDD demand increment driven by AI, vendors' pricing execution, and the stability of the oligopolistic market structure.

Risks

• The duration and strength of the HDD upcycle are lower than expected.
• A reversal in cloud capex or slowing CSP demand weakens nearline HDD procurement.
• New entrants, third-party strategic alliances, or substitute technologies disrupt the existing HDD oligopoly.
• eSSD or NAND substitutes for HDD in some cold data use cases.
• Nearline HDD price normalization is larger than expected, causing EPS leverage to fall short.
• Customer qualification or mass production timelines for HAMR and high-capacity drives are delayed.
• Geopolitical tensions and tariff costs compress margins.
• Convertible dilution, fixed-cost deleverage, or weaker-than-expected buybacks affect earnings per share.

What to watch

• Whether nearline HDD pricing per TB continues moving from $14.30-$14.90 to above $20 and even toward the $25-$30 target range.
• Whether the EB supply gap in CY26-CY28 materializes, especially whether shortages in the 300EB-400EB range persist.
• Whether changes in CSP deployment rates, ODM inventory, and long-term LTA duration continue to indicate tight supply-demand conditions.
• STX early HAMR customer repricing and WDC progress in high-capacity drives/UltraSMR.
• Whether STX and WDC gross margins expand toward around 60% or higher, respectively.
• Whether market consensus continues to raise FY27-FY28 EPS.
• Whether cloud capex, AI inference/agent demand, and general server shipments continue to support HDD demand.
• Whether new entrants, eSSD substitution, tariffs, and geopolitical risks deteriorate materially.