Western Digital Corp (WDC) (Q4 2026) Earnings Call Highlights: Record Revenue and EPS Soar
Western Digital’s Q4 fiscal 2026 earnings call highlighted record revenue and a sharp rise in EPS, with exabyte growth of 22% year over year. The company guided Q1 fiscal 2027 gross margin slightly below competitor levels and said cost per terabyte fell about 8% YoY. WD expects demand growth above 25% and a ramp of 40TB ePMR drives.
How this was made
The 30-second read
Why it matters
Traders can update expectations for Q1 fiscal 2027 margins and operating leverage while monitoring the timing of LTA repricing and next-generation drive ramp that management says should accelerate exabyte growth in the second half of the fiscal year.
Market read
Management reiterates >25% demand growth and targets 40TB ePMR to exceed 50% of nearline exabytes by Q3 calendar 2027, but flags near-term gross margin and operating expense pressures.
What to watch
Nearline shipment concentration with a few hyperscale customers and limited one-quarter guidance could increase volatility and reduce confidence in sustained margin expansion.
Background
The piece summarizes Western Digital’s Q4 fiscal 2026 earnings call, emphasizing exabyte growth, gross margin drivers, and the 40TB ePMR and 44TB HAMR roadmap.
Ticker impact
Western Digital guided Q1 fiscal 2027 gross margin slightly below competitors and expects sequential operating expense increases, despite record revenue and EPS.
Choppy-to-soft near-term reaction risk, with upside bias if investors focus on 40TB ePMR ramp and >25% demand outlook.
The article provides both a constructive demand/product roadmap (40TB ePMR ramp, exabyte growth acceleration) and a near-term headwind (gross margin guidance slightly below competitors, sequential opex increase).
Market effects
HDD/nearline storage demand narrative tied to AI infrastructure and next-gen ePMR/HAMR ramp could influence sentiment across storage supply chain.
Management highlights Asian market opportunity and China AI model proliferation as a demand tailwind for storage.
AI-driven inference and physical AI workloads are framed as compounding data storage needs, supporting broader data infrastructure capex expectations.
Counterpoint
The deceleration in Q4 exabyte growth (22% vs prior 30%) plus nearline pricing predictability could mean the demand story is less linear than the ramp implies.
Key entities
- companyWestern Digital Corp
Subject of the earnings call highlights, including Q1 fiscal 2027 gross margin guidance, exabyte growth outlook, and cost per terabyte trajectory.
- executiveIrving Tan
CEO quoted on exabyte growth drivers, 40TB ePMR ramp targets, and demand from sovereign, neocloud, and physical AI customers.
- executiveKris Sennesael
CFO quoted on cost per terabyte progress, gross margin convergence, and Q1 fiscal 2027 guidance details.
