Western Digital Corporation

Q3 fiscal 2026 performance was strong and ahead of guidance (all key metrics up) - Revenue: $3.3B, +45% YoY (and above the high end of guidance). - Earnings per share: $2.72, ~+97% YoY (almost doubled). - Capacity shipped: 222 exabytes, +34% YoY; included 4.1M+ drives and 118 exabytes of next-gen ePMR up to 32TB. - Gross margin: 50.5%, +1,040 bps YoY and +440 bps sequentially—a major profitability beat driven by mix (higher capacity), pricing, and cost control. - Operating margin: 38.6% (+1,260 bps YoY), reflecting operating leverage.

Q4 outlook stays constructive; investors should focus on continued margin expansion and pricing strength - Revenue guidance (Q4): $3.65B ± $100M (midpoint implies +40% YoY). - Gross margin guidance: 51%–52% (implies continued improvement). - Operating expenses: $385M–$395M; tax rate ~16%. - EPS guidance: $3.25 ± $0.15 (non-GAAP, based on ~385M diluted shares). - Management message: incremental gross margins remain strong (stated ~70%–75% YoY/QoQ on an incremental basis for multiple quarters including the guided quarter).

AI/agentic AI narrative is the core demand driver—management expects HDD exabyte growth >25% CAGR - CEO highlighted three HDD growth drivers tied to AI: 1) Training data accumulation (models retrain/reinforce; data stored for reuse). 2) Inference + agentic workflows (inference/agents generate new data that must be stored; longer retention cycles). 3) Physical AI + synthetic data loops (robots/vision/vehicles generate continuous data; synthetic data factories expand training inputs). - Claim: these forces are compounding, not additive, supporting long-term exabyte growth >25% CAGR, especially in cloud/enterprise.