Why Is Seagate (STX) Up 13.4% Since Last Earnings Report?

Seagate Technology (STX) delivered strong fiscal Q4 2025 results, with non-GAAP earnings of $2.59 per share and revenues of $2.44 billion, both exceeding analyst expectations. This performance was primarily driven by robust demand from hyperscale cloud customers, AI workloads, and edge computing, leading to a 40% year-over-year surge in mass capacity revenues and a record non-GAAP gross margin of 37.9%. Shares have since gained 13.4%, outperforming the S&P 500, and Seagate anticipates continued growth, projecting fiscal Q1 2026 revenues of $2.5 billion, indicating sustained positive momentum in high-density storage solutions.

Analysis

Seagate's (STX) recent 13.4% share price outperformance is directly attributable to a robust fiscal fourth-quarter 2025 earnings report, where the company surpassed consensus estimates on both revenue and earnings. Revenue grew 30% year-over-year to $2.44 billion, propelled by exceptionally strong demand from hyperscale cloud customers and for AI-related workloads. This secular trend drove a 40% YoY surge in mass capacity revenues to $2 billion, with high-density nearline drives constituting the core of this growth. The operational leverage is evident in the significant margin expansion; non-GAAP gross margin reached a record 37.9%, a 700 basis point YoY increase, while the non-GAAP operating margin expanded by 890 bps to 26.2%. This profitability improvement was supported by a favorable product mix, with average capacity per drive increasing 40% YoY, and strong free cash flow generation of $425 million. While forward guidance for Q1 2026 remains optimistic with projected revenue of $2.5 billion (+/- $150 million), this implies a moderation in YoY growth to approximately 15% at the midpoint. Despite upward estimate revisions, the stock's 'Hold' rating and 'C' score for value suggest that the market has already factored in much of the recent positive performance.

Key Decisions for Investors

• Given the strong execution and tailwinds from AI and cloud demand, investors with existing positions could consider holding to benefit from continued operational strength, particularly in high-margin, mass-capacity products.
• Potential new investors should note the stock's significant recent appreciation and its neutral value score, suggesting it may be prudent to wait for a potential pullback before initiating a position.
• Monitor the growth rate of mass capacity exabyte shipments and trends in hyperscale spending, as these are the primary drivers of Seagate's revenue and margin performance.
• Closely scrutinize the company's ability to meet its Q1 guidance, as the projected deceleration in YoY revenue growth from 30% to 15% could become a key point of concern if not met or exceeded.