Preliminary brief— based on press release only. Full analysis including management tone and Q&A will be added when the transcript is available.

WDC · Q1 2026 Earnings

Western Digital

Reported October 30, 2025

30-second summary

Western Digital beat its own Q1 guide on revenue ($2.82B vs. $2.6–2.8B), EPS ($1.78 vs. $1.39–1.69), and gross margin (43.9% vs. 41–42%) — the margin beat is the headline, running ~190bps above the high end. Forward Q2 guide takes gross margin to 44–45% and revenue to ~$2.9B (~20% YoY), and management pulled HAMR qualification in by six months while extending hyperscaler PO coverage into all of calendar 2027. The supply-constrained narrative through 2026 is now explicit, with management saying no new unit capacity is being added.

Headline numbers

EPS

Q1 FY2026

$1.78

Revenue

Q1 FY2026

$2.82B

+27.0% YoY

Gross margin

Q1 FY2026

43.9%

Free cash flow

Q1 FY2026

$0.60B

Operating margin

Q1 FY2026

30.4%

Key financials

Q1 FY2026

Metric	Q1 FY2026	YoY	Q4 FY2025	QoQ
Revenue	$2.82B	+27.0%	$2.60B	+8.2%
EPS	$1.78	—	$1.66	+7.2%
Gross margin	43.9%	—	41.0%	+290bps
Operating margin	30.4%	—	26.1%	+430bps
Free cash flow	$0.60B	—	$0.68B	-11.3%

Guidance

Strong Q1 beat on revenue, EPS, and margins; FY2026 full-year guidance absent; Q2 forward guidance shows continued growth at ~20% YoY with gross margin expansion to 44-45%.

Guidance is issued for both next quarter and the full year. Both may appear below.

Actuals vs prior guidance

Metric	Period	Prior guide	Actual	Δ	Result
Revenue	Q1 FY2026	$2.6B to $2.8B	$2.818B	+$18M above high end of guide	Beat
Non-GAAP EPS	Q1 FY2026	$1.39 to $1.69	$1.78	+$0.09 above high end of guide	Beat
Non-GAAP Gross Margin	Q1 FY2026	41% to 42%	43.9%	+190bps above high end of guide	Beat
Revenue YoY Growth	Q1 FY2026	~22% YoY	27% YoY	+5pts above guide	Beat
Non-GAAP Operating Expenses	Q1 FY2026	$370M to $380M	~$373M (implied from 30.4% operating margin)	in-line with midpoint of guide	Met

New guidance

Metric	Period	Guide	YoY
Revenue	Q2 FY2026	$2.8B to $3.0B	~20% YoY
Non-GAAP EPS	Q2 FY2026	$1.73 to $2.03	—
Non-GAAP Gross Margin	Q2 FY2026	44% to 45%	—
Non-GAAP Operating Expenses	Q2 FY2026	$365M to $375M	—

Management tone

Q4 FY25 anchor: structural demand reset → Q1 FY26 anchor: timelines pulled forward, supply constraint extended.

Exabyte growth has moved from a 15–23% range to "trending toward 23% with upside in 27–28." Last quarter management introduced the 23% AI uplift case as a possibility; this quarter they say demand is already there. From the call: "we are clearly seeing demand trending more towards that 23% range... with potential as we fast forward to the 27, 28 timeframe to increase even more." The base case is being abandoned in favor of the uplift case, and the upside case is now the upside-to-the-uplift case.

HAMR qualification has been pulled forward by six months. As recently as Q4 the plan was H2 2026 qualification start; this quarter management said "we've pulled forward the qualification process by half a year... we've now pulled that in into the first half of calendar year 2026 with one customer and we look to expand that to up to three customers by the end of the calendar year." Next-gen ePMR qualification was also pulled into Q1 calendar 2026 from H1 2026. Two roadmap pull-ins in the same quarter is a posture of execution confidence, not caution.

Customer commitment horizon extended from FY26 to 2027. Q4 was "all top-five hyperscalers under firm PO/LTA for fiscal year 2026." This quarter: "five of [our top seven customers] have provided purchase orders covering all of calendar year 2026. I'm also pleased to share that one of our largest hyperscale customers has signed an agreement covering all of calendar year 2027." Visibility window has lengthened by 12+ months in one quarter.

Supply constraint framing has hardened. Last quarter's tone was "demand is strong"; this quarter's is "supply will not catch up until late 2027." Verbatim: "calendar year 2026, the supply-demand balance is going to continue to be very supply-constrained... we expect to see more exabytes probably coming on stream in the second half of calendar year 27." Combined with "We are not adding any unit capacity to our portfolio right now," this is an explicit oligopoly-discipline statement and the cleanest articulation of pricing power the company has offered.

The seasonality retirement claim from Q4 has been formalized. Q4: "we don't think the seasonality of the past applies anymore." Q1: "the business has structurally changed... close to 90%, 89% of our business is data center right now. So there isn't really any seasonality associated to it." The "89%" data point is new — last quarter the share was framed qualitatively.

Recurring themes management leaned on this quarter:

AI-driven exabyte growth accelerationHigher-capacity drive mix shift (ePMR and UltraSMR)Long-term customer commitments with extended visibilityGross margin expansion through product mix and operational efficiencyHAMR and next-gen ePMR qualification timeline accelerationSupply-constrained environment extending through 2026

Risks management surfaced:

Macroeconomic uncertaintiesSSD adoption for certain AI workloads as alternative to HDDsPotential production-level challenges during HAMR rampRisk of customers shifting to alternative storage technologies if HDD supply remains constrainedTariff impacts on business (referenced in guidance)

Answers to last quarter's watch list

Gross margin trajectory above 42%. Decisively breached. 43.9% printed vs. 41–42% guide, and Q2 guide is 44–45%.

Resolved positively

Whether FY26 LTA coverage shows up as upside to the $2.7B Q1 guide. Yes — revenue printed at $2.82B, $120M above the midpoint and $18M above the high end, with YoY growth of 27% vs. the ~22% implied by the guide.

Resolved positively

Exabyte growth disclosure. Management explicitly said demand is trending toward the 23% upper end of the prior 15–23% range, with potential to go higher in 2027–28. Not yet a formal CAGR reset, but a directional confirmation.

Resolved positively

Hammer qualification milestones. HAMR qualification pulled forward six months to H1 calendar 2026, with one customer at start and a target of three customers by year-end. Next-gen ePMR also pulled into Q1 calendar 2026.

Resolved positively

Operating expense discipline. Q1 opex landed in-line with the $370–380M guide (~$373M implied), and Q2 guide actually steps lower to $365–375M while revenue grows. Opex is growing slower than revenue.

Resolved positively

Capital return cadence. The company didn't disclose new buyback execution figures or a dividend raise in the press release excerpts available; transcript color on Q&A would have helped here.

Continue monitoring

What to watch into next quarter

Whether Q2 gross margin breaches 45%. Guide is 44–45%; Q1 cleared the top of its guide by 190bps, so the pattern suggests upside.

2027 LTA count. One hyperscaler is signed for all of calendar 2027 — watch for a second and third, which would confirm the "supply-constrained through 2027" narrative is being underwritten by customers, not just management.

HAMR customer count by end of calendar 2026. Management targeted "up to three" — watch whether the count is hit, exceeded, or slips. A slip would unwind a meaningful piece of the bull case.

First formal FY26 full-year revenue range. Two consecutive quarters without quantified FY guidance is notable for a company this far into the fiscal year. Either a range appears at Q2 or the no-FY-guide posture becomes the new normal.

Capital return execution. Dollar value of buybacks completed against the $2B authorization and any move on the $0.10 dividend.

Pricing commentary. With supply explicitly constrained through 2027 and no capacity being added, watch whether management starts speaking about ASP/exabyte explicitly rather than letting it show up only through mix.

Sources

Western Digital Q1 FY2026 press release, filed 2025-10-30 — https://www.sec.gov/Archives/edgar/data/106040/000162828025047539/a4ex991-pressreleaseq126.htm
Western Digital Q1 FY2026 prepared remarks (as extracted; no full Q&A transcript available)
Western Digital Q4 FY2025 press release and call commentary (for trend comparisons)

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