What's happening
Seagate Technology delivered a significantly upbeat forecast for its fourth quarter, projecting revenue of $3.45 billion, plus or minus $100 million, well above analyst estimates of $3.16 billion. The company also guided earnings per share to $4.80–$5.20, surpassing consensus expectations of $3.89. The positive outlook sent Seagate shares soaring 16% in extended trading.
Seagate CEO Dave Mosley attributed the strong demand to AI applications across existing platforms, stating that "AI is amplifying demand across existing applications such as video, where large cloud providers are integrating AI in the platforms to boost user engagement and revenue opportunities, driving new video creation and the need to store it." Both Seagate and Western Digital executives indicated their capacity is fully allocated and sold out through calendar 2026.
Why it matters for markets
The rally demonstrates how AI infrastructure spending is creating sustained demand beyond semiconductor companies, extending to data storage providers that support hyperscale cloud operations. The combined market value of Seagate, Western Digital, Micron, and SanDisk increased by $60 billion following the announcement, reflecting investor confidence in the durability of AI-related capital expenditures.
Seagate's guidance beat represents a 9.2% upside to analyst revenue expectations and a 23.4% premium to EPS consensus, indicating robust pricing power and demand visibility in the storage market. The company's shares have more than doubled year-to-date ahead of this report, suggesting the AI storage thesis is gaining momentum among institutional investors. With capacity sold out through 2026, storage companies appear positioned to benefit from supply constraints that could support premium pricing.
Sectors and assets to watch
The data storage sector saw broad-based gains, with Western Digital shares jumping 10%, Micron Technology climbing 3%, and SanDisk rising 4% in sympathy with Seagate's outlook. These companies manufacture the hard disk drives, solid-state drives, and memory products essential for AI data center infrastructure.
Seagate Technology Holdings, with its $129.72 billion market cap and focus on high-capacity enterprise storage solutions, stands as a primary beneficiary of hyperscale demand. The company's revenue of $10.06 billion and 30,000 employees position it as a major supplier to cloud providers expanding AI capabilities.
What to watch next
Monitor upcoming earnings reports from Western Digital and Micron Technology to confirm whether the AI storage demand trend extends across the sector. Key metrics include capacity utilization rates, pricing trends for enterprise storage products, and forward guidance from major storage suppliers. Additionally, watch for capital expenditure announcements from hyperscale cloud providers, as these directly drive demand for the high-capacity storage solutions that Seagate and peers manufacture.