Western Digital (WDC) Q4 FY26 earnings call: guidance and Q&A

Why are WD's sequential top-line growth and September quarter gross margin guide lower than a main competitor? What drives gross margin acceleration from here, especially before HAMR in CY27?

Management attributed quarter-to-quarter gross margin variations to timing differences in LTA contracts and the introduction of new platforms. They expect the ramp of 40TB ePMR drives and ongoing operational efficiencies to drive stronger Exabyte growth, continuous top-line growth, and margin expansion, even before HAMR.

“there are always quarter-to-quarter variations in terms of gross margin because there's a whole range of factors that go into driving it. Obviously, timing of pricing in relation to the long-term agreement contracts is one.”

asked by Christopher Muse · answered by Tiang Yew Tan

How has visibility improved with the indispensable nature of HDDs in AI data centers, and how might it improve further with contract renewals?

Visibility is strong and customer-driven, with discussions for LTAs extending to calendar years 2029, 2030, and 2031. Management has good line of sight on exabyte demand and is working through the commercial and pricing constructs for these longer-term agreements.

“we talked about having one LTA of a large customer all the way up to calendar year '29. But we're very much in the coals of discussions with customers to establish LTAs for calendar year '29, '30, and '31 as well.”

asked by Christopher Muse · answered by Tiang Yew Tan

Exabyte shipments were up 22% YoY in Q4, below the 30%+ seen in prior quarters. Is this a pause or a normalized rate, and what's the outlook for FY27?

Management clarified that exabyte shipments were up 22% YoY in Q4 and 25% for the full FY26. They expect exabyte growth to accelerate in the second half of FY27 with the ramp of 40TB ePMR and the introduction of 44TB HAMR, maintaining a long-term growth expectation of above 25%. Quarter-to-quarter variations are normal due to product mix.

“I mean I think what we've guided to is a exabyte. We see demand growing at above 25%, right, 25% plus going forward.”

asked by Amit Daryanani · answered by Tiang Yew Tan

Given the strong balance sheet ($1.1B debt, $1.6B cash, $500M net positive cash), what are the updated thoughts on capital structure? Is it 100% FCF return, or will more debt be considered?

Management reiterated its commitment to returning free cash flow to shareholders through dividend payments and share repurchases, with no change to the strategy or consideration of adding more debt.

“No change there to our strategy and our commitment to return the free cash flow back to the shareholders consistently with what we have been doing over the last 4 or 5 quarters through a combination of our dividend payments as well as our share repurchases.”

asked by Aaron Rakers · answered by Kris Sennesael

What specific mix or pricing dynamics are changing sequentially that might prevent further upside to gross margins, despite strong year-over-year incrementals?

Kris Sennesael emphasized focusing on year-over-year incremental gross margins, which were 75% for FY26 and guided at 80-81% for Q1 FY27. He expressed high conviction in continued gross margin improvement driven by strong demand, higher capacity drives providing value, increasing price per terabyte, and decreasing cost per terabyte.

“I have high conviction that we will continue to improved gross margins for many quarters going forward based on everything what we've explained. There is very strong demand. We're moving to higher capacity drives that provides more value to our customers, and that enables us to increase our price per terabyte while at the same time driving down the cost per terabyte.”

asked by Wamsi Mohan · answered by Kris Sennesael

Could you elaborate on 'physical AI' and its impact on storage demand, particularly with the surge in synthetic and video data?

Irving Tan explained that physical AI, such as autonomous vehicles and robotics, is generating significant demand for storage. He cited an example of an autonomous vehicle player whose exabyte demand increased multiple-fold for CY27. These systems generate new data and also require synthetic data for training, creating a substantial and growing need for storage, which is now becoming very real.

“I highlighted an example with autonomous vehicle player where I would say that the increase in exabyte demand from them for this calendar years -- or sorry, calendar year '27 has increased multiple for, right? So we're definitely seeing that.”

asked by Benjamin Reitzes · answered by Tiang Yew Tan

How does the gross margin delta between nearline and non-nearline compare today, especially given the ability to raise prices in non-nearline HDD?

Kris Sennesael stated that the gross margins for both nearline and non-nearline (including consumer and client) are currently in the '5 ZIP code,' indicating not a lot of differentiation between them anymore.

“So the gross margin between nearline, non-nearline, which includes consumer and client and all of that, it's all in the same ballpark right now in the 5 ZIP code. So there's not a lot of differentiation there anymore.”

asked by Karl Ackerman · answered by Kris Sennesael