Broader AI Storage Demand and Supply Restraint Strengthen Seagate’s Earnings Outlook

Overview

During FMS 2026, Citi met with Seagate’s investor relations team at the company’s Silicon Valley headquarters. Management remains highly optimistic about demand, pricing, and the earnings outlook: nearline HDD supply has been largely locked in through CY27 and into CY28, while AI-related storage demand is gradually expanding from training to inference, agentic AI, enterprise on-premise deployments, and potential physical AI scenarios. At the same time, the company plans to expand EB supply mainly through areal density improvements rather than a substantial increase in drive units, and to preserve pricing power through restrained capacity expansion, price ladders, and HAMR product upgrades. Citi therefore reiterates its Buy rating and US$1,300 target price.

Core views

The core logic includes: first, hyperscale cloud customer demand visibility is strong, and order velocity and deployment absorption show no clear signs of duplicate ordering or inventory buildup; second, KV cache tiered storage can economically move AI context to HDDs, reducing the consumption of expensive GPU resources for repeated computation and creating new demand for HDDs; third, supply growth is mainly driven by areal density improvements, and the company would rather slow supply than create market oversupply, making the supply-demand structure favorable for prices and margins; fourth, HAMR qualification and volume ramp will improve capacity, cost, and product mix; fifth, the large amount of unstructured sensor and video data generated by physical AI, robotics, and autonomous driving may support the company’s long-term expectation of 25% EB compound growth.

Analysis framework

The report forms its judgment by combining management interviews, nearline HDD supply-demand and customer order visibility, changes in AI storage architecture, HAMR product upgrades, capacity strategy, earnings forecasts, and valuation multiples. It determines the target price using a P/E methodology based on FY28 EPS and sets a 90-day short-term upside view.

Methodology notes

• Fundamental researchManagement interviews and industry validation

  Validate trends in demand, inventory, capacity, pricing, and technology upgrades through management feedback.

  Citi met with Seagate’s investor relations team and assessed the operating outlook based on customer supply discussions, order velocity, inventory performance, hyperscale cloud customer demand, and HAMR qualification progress.

• Valuation analysisForward P/E valuation

  Derive the target price by multiplying forecast-year earnings per share by the target P/E multiple.

  The US$1,300 target price is based on a 23x P/E multiple applied to the FY28 EPS forecast, reflecting demand and pricing resilience, margin improvement, execution capability, and stronger HDD fundamentals.

• Supply-demand analysisCapacity allocation and pricing discipline analysis

  Assess industry pricing power through the duration of demand coverage, the method of supply expansion, and inventory signals.

  Nearline HDD capacity has largely been allocated through CY27 and into CY28, while the company mainly relies on areal density improvements to expand EB supply and does not plan to add greenfield capacity, creating a favorable supply-demand and pricing environment.

Asset mapping & comparison

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

• STX.US

  Core recommended stock in the report, directly benefiting from nearline HDD demand, AI data growth, HAMR upgrades, and industry supply discipline.

  Strengths

  High-capacity HDD demand is strong, with nearline capacity visibility extending into CY28; the company maintains pricing discipline and expands EB capacity mainly through areal density improvements; HAMR volume ramp is expected to improve costs and product mix; cloud customer demand visibility is relatively high.

  Weaknesses

  Revenue is highly dependent on HDDs, with more than 92% of revenue from hard drive sales; performance is relatively sensitive to cloud and enterprise storage cycles, pricing, and capacity utilization.

  Comparison

  Compared with SSDs, HDDs have economic advantages in high-capacity, low-cost cold data and AI context storage, but face competition from declining NAND prices and faster SSD substitution; in the high-capacity enterprise hard drive segment, they also face competition from Western Digital’s ePMR products.

  Risks

  Weaker cloud and enterprise demand, declining SSD prices accelerating substitution, cost improvements falling short of historical levels, stalled HAMR adoption, and share pressure from competitors’ high-capacity hard drive products.

Key data

• RatingBuyCiti reiterates the rating.
• Target priceUS$1,300.00Based on a 23x FY28 EPS valuation.
• Reference share priceUS$851.87As of 2026-08-06 16:00.
• Expected share price return52.6%Expected upside of the target price relative to the reference share price.
• Expected total return53.0%Includes an expected dividend yield of 0.3%.
• Short-term viewUpside90-day view, expiring on 2026-10-11.
• Nearline HDD capacity visibilityLargely allocated through CY27 and extended into CY28Some customers have discussed CY29 and longer-term supply.
• Long-term EB growth expectation25% compound annual growth rateManagement believes trends such as AI, cloud services, and physical AI can support this outlook.
• FY28 core EPS forecastUS$56.78Citi forecast.
• FY27 sales revenue forecastUS$18,662mCorresponds to a forecast of 53.0% year-over-year growth.
• FY27 adjusted EBITDA margin53.5%Above the FY26 forecast of 38.8%.
• HDD revenue share>92%The remaining revenue comes from Enterprise Systems, Flash, and other non-HDD storage businesses.
• Regional revenue mixAmericas 49%; EMEA 10%; Asia Pacific 41%Based on the most recently disclosed fiscal year.

Impact & implications

If AI inference and agentic applications drive the adoption of KV cache and tiered storage, HDDs may take on a low-cost, high-capacity role for context and unstructured data storage outside of GPUs and NAND, expanding Seagate’s beneficiary scope from traditional cloud storage to enterprise on-premise AI, new cloud service providers, and physical AI. Supply restraint and HAMR upgrades may also more effectively translate demand growth into pricing, gross margin, cash flow, and shareholder returns. However, the current target price depends on strong realization of FY28 earnings and a 23x valuation; if supply-demand or the technology path proves weaker than expected, the risk of valuation pullback would also increase accordingly.

Risks

• Macro factors causing cloud and enterprise demand to weaken again could compress storage spending, disrupt the current supply-demand balance, and lead to underutilization costs.
• Declining SSD prices or faster-than-expected substitution of HDDs by SSDs could weaken HDD demand and pricing power.
• Cost structure improvements below the historical 10% to 15% level could cause margin expansion to fall short of expectations.
• Stalled industry adoption of HAMR or customer qualification progress could delay product mix and cost improvements.
• Western Digital’s ePMR high-capacity hard drives may create competitive pressure on Seagate’s enterprise business.
• The specific contribution of AI storage demand to long-term 25% EB compound growth cannot yet be quantified, and the commercialization pace of new architectures remains uncertain.
• Failure to deliver the FY28 earnings forecast and 23x target P/E could lead to a target price cut or valuation compression.

What to watch

• Whether nearline HDD capacity allocation continues to extend to CY29 and beyond, and whether customer demand signals can keep improving.
• Whether order velocity, customer deployment absorption, and channel inventory continue to prove that there is no duplicate ordering or inventory buildup.
• Commercial implementation of KV cache tiered storage reference designs, and adoption progress among enterprise on-premise AI and new cloud service providers.
• Hyperscale cloud customers’ qualification of HAMR, Mozaic 4+ volume ramp, and FY27 product mix improvement.
• Whether the company can achieve EB growth through areal density improvements and maintain pricing discipline without adding greenfield capacity.
• Whether gross margin, adjusted EBITDA margin, free cash flow, and shareholder returns improve as forecast.
• NAND and SSD price trends, and the pace of SSD substitution for high-capacity HDDs.
• Whether unstructured data generated by physical AI, robotics, and autonomous driving translates into substantive storage demand.