Western Digital Corporation

What they do

Western Digital designs, manufactures, and sells hard disk drives (HDDs) and related storage platforms. The company operates across three end markets: Cloud (high-capacity enterprise HDDs for data centers), Client (HDDs for desktop and notebook OEMs), and Consumer (external HDD storage products). Following the February 2025 separation of its Flash business into Sandisk, Western Digital is now exclusively an HDD company.

Revenue drivers

• Cloud — High-capacity enterprise HDDs and data storage platforms for public/private cloud and enterprise customers. This is the largest end market, driven by demand from cloud, internet, and social media infrastructure providers.
• Client — High-performance HDDs for desktop and notebook computers sold to OEMs and channel customers, emphasizing performance, reliability, and low power consumption.
• Consumer — External HDD storage products sold through retail and channel routes, leveraging the WD brand for personal content management.

Recent performance

In Q4 FY2026 (ended July 3, 2026), Western Digital reported revenue of $3.75 billion, up 44% year-over-year. GAAP gross margin was 54.1% and GAAP diluted EPS was $8.21, with non-GAAP diluted EPS of $3.56. Operating cash flow was $1.39 billion and free cash flow was $1.28 billion. For the full fiscal year 2026, revenue rose 36% to $12.92 billion, with GAAP diluted EPS of $24.28.

Strategy

Management states that the Separation positions the company to focus on its HDD business, capitalize on growth opportunities, and pursue distinct capital allocation strategies. The strategy centers on scaling innovation, expanding areal density and cost leadership, and deepening relationships with key customers. The company emphasizes operational discipline and margin expansion, supported by increasing demand from AI and data-intensive workloads.

Risks

• Global economic conditions — A large portion of revenue is from international operations; adverse conditions, tariffs, or trade restrictions could reduce demand and increase costs.
• Supply chain and supplier concentration — Dependence on a limited number of suppliers and potential disruptions could harm production and results.
• Competitive environment — Actions by competitors, including pricing and product introductions, could impact market share and profitability.
• Separation-related risks — Risks associated with the completed Separation, including the retained ownership interest in Sandisk, could affect financial results and operations.

Outlook

For fiscal Q1 2027, management expects revenue of $4.1 billion (+/- $100 million), non-GAAP gross margin of 55-56%, and non-GAAP EPS of $4.00 (+/- $0.15). The company expects revenue to grow 42% to 49% year-over-year, with continued margin expansion and strong free cash flow generation, citing confidence in the durability of demand and increasing visibility.