# How Western Digital makes money

CXProWealth Business Lens · Western Digital (WDC) · Q1 FY2027

Read from the 10-Q for the period 2026-07-04 to 2026-10-02, filed 2026-10-23 with the SEC (accession 0001628280-26-066933): https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/

Business Lens explains how a company earns, spends and keeps its money, from its own filings. It is insight and context, never a view on the shares, a target, or advice. Figures are raw units as filed; percentages are percentage points.

## Headline figures

- Revenue: $4.4B (+55.5% on the year)
- Operating income: $2.0B (operating margin 46.7%)
- Net income: $1.8B (net margin 40.6%)
- Gross margin: 57.8%
- Free cash flow: $1.4B (31.4% of revenue)
- Cash conversion (operating cash flow / net income): 0.90x
- Capital expenditure: 5.2% of revenue

## Where the money goes (Q1 FY2027)

- Cloud → Revenue, net: $3.9B
- Client → Revenue, net: $320.0M
- Consumer → Revenue, net: $193.0M
- Revenue, net → Cost of revenue: $1.8B
- Revenue, net → Gross profit: $2.5B
- Gross profit → Total operating expenses: $488.0M
- Total operating expenses → Research and development: $283.0M
- Total operating expenses → Selling, general and administrative: $162.0M
- Total operating expenses → Business realignment charges: $43.0M
- Gross profit → Operating income: $2.0B
- Operating income → Total interest and other income (expense), net: $8.0M
- Total interest and other income (expense), net → Interest expense: $11.0M
- Total interest and other income (expense), net → Other expense, net: $4.0M
- Interest income → Total interest and other income (expense), net: $7.0M
- Operating income → Income before taxes: $2.0B
- Income before taxes → Income tax expense: $259.0M
- Income before taxes → Net income: $1.8B

## Where the revenue comes from

### Products and services (Disaggregated Revenue, Geographic Information, Concentrations of Risk, and Segment Reporting - Schedule of Disaggregation of Revenue (Details))

| Member | Value | Share |
|---|---:|---:|
| Cloud | $3.9B | 88.3% |
| Client | $320.0M | 7.3% |
| Consumer | $193.0M | 4.4% |

The members sum to total revenue.

### Regions (Disaggregated Revenue, Geographic Information, Concentrations of Risk, and Segment Reporting - Schedule of Disaggregation of Revenue (Details))

| Member | Value | Share |
|---|---:|---:|
| Americas | $2.1B | 47.5% |
| Asia | $1.7B | 39.0% |
| Europe, Middle East and Africa | $592.0M | 13.5% |

The members sum to total revenue.

## Income statement, as filed

| Line | Q1 FY2027 | Of revenue |
|---|---:|---:|
| Revenue, net | $4.4B | 100% |
| Cost of revenue | $1.8B | 42.2% |
| **Gross profit** | $2.5B | 57.8% |
| Research and development | $283.0M | 6.5% |
| Selling, general and administrative | $162.0M | 3.7% |
| Business realignment charges | $43.0M | 1.0% |
| **Total operating expenses** | $488.0M | 11.1% |
| **Operating income** | $2.0B | 46.7% |
| Interest income | $7.0M | 0.2% |
| Interest expense | ($11.0M) | 0.3% |
| Gain on retained interest in Sandisk | $0 | 0.0% |
| Other expense, net | -$4.0M | 0.1% |
| **Total interest and other income (expense), net** | -$8.0M | 0.2% |
| **Income before taxes** | $2.0B | 46.5% |
| Income tax expense | $259.0M | 5.9% |
| **Net income** | $1.8B | 40.6% |
| Dividends allocated to preferred shareholders | ($0) | 0.0% |
| Income attributable to participating securities | ($0) | 0.0% |
| **Basic net income attributable to common shareholders** | $1.8B | 40.6% |
| Re-allocation of participating securities considered potentially dilutive | $0 | 0.0% |
| **Diluted net income attributable to common shareholders** | $1.8B | 40.6% |
| Basic (in shares) | 366,000,000 |  |
| Diluted (in shares) | 384,000,000 |  |
| Basic (in dollars per share) | $5 | 0.0% |
| Diluted (in dollars per share) | $5 | 0.0% |

## History

| Period | Revenue | Operating income | Net income | Operating cash flow | Capital expenditure | Free cash flow |
|---|---:|---:|---:|---:|---:|---:|
| FY2008 | — | $1.0B | $867.0M | $1.4B | $615.0M | $784.0M |
| FY2009 | — | $519.0M | $470.0M | $1.3B | $519.0M | $786.0M |
| FY2010 | — | $1.5B | $1.4B | $1.9B | $737.0M | $1.2B |
| FY2011 | — | $781.0M | $726.0M | $1.7B | $778.0M | $877.0M |
| FY2012 | — | $1.8B | $1.6B | $3.1B | $717.0M | $2.4B |
| FY2013 | — | $1.3B | $980.0M | $3.1B | $952.0M | $2.2B |
| FY2014 | — | $1.8B | $1.6B | $2.8B | $628.0M | $2.2B |
| FY2015 | — | $1.6B | $1.5B | $2.2B | $612.0M | $1.6B |
| FY2016 | — | $466.0M | $242.0M | $2.0B | $584.0M | $1.4B |
| FY2017 | $19.1B | $2.0B | $397.0M | $3.4B | $578.0M | $2.9B |
| FY2018 | $20.6B | $3.6B | $675.0M | $4.2B | $835.0M | $3.4B |
| FY2019 | $16.6B | $87.0M | -$754.0M | $1.5B | $876.0M | $671.0M |
| FY2020 | $16.7B | $335.0M | -$250.0M | $824.0M | $647.0M | $177.0M |
| FY2021 | $16.9B | $1.2B | $821.0M | $1.9B | $1.1B | $752.0M |
| FY2022 | $18.8B | $2.4B | $1.5B | $1.9B | $1.1B | $758.0M |
| FY2023 | $6.3B | -$548.0M | -$1.7B | -$408.0M | $821.0M | -$1.2B |
| FY2024 | $6.3B | -$403.0M | -$798.0M | -$294.0M | $487.0M | -$781.0M |
| FY2025 | $9.5B | $2.3B | $1.9B | $1.7B | $412.0M | $1.3B |
| FY2026 | $12.9B | $4.5B | $9.4B | $3.9B | $418.0M | $3.5B |

Latest trend (the newest full year against the year before; a reading, not a forecast):

- Revenue: +35.7% (year before +50.7%): slowing
- Operating income: +90.8% (year before -479.2%): accelerating
- Net income: +398.9% (year before -136.7%): accelerating
- Free cash flow: +174.5% (year before -63.8%): accelerating

## Operating figures stated in the filing

- Top 10 customers' share of revenue: 64.0% (as of 2026-10-02). "Our top 10 customers accounted for 64% of our net revenue for the three months ended October 2, 2026, compared to 73% of our net revenue for the three months ended October 3, 2025." (Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations)
- Top 10 customers' share of revenue: 73.0% (as of 2025-10-03). "Our top 10 customers accounted for 64% of our net revenue for the three months ended October 2, 2026, compared to 73% of our net revenue for the three months ended October 3, 2025." (Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations)
- Largest customer's share of revenue: 14.0% (as of 2026-10-02). "For the three months ended October 2, 2026, two customers accounted for 14% and 13%, respectively, of our net revenue, and for the three months ended October 3, 2025, four customers accounted for 16%, 13%, 13% and 12%, respectively, of our net revenue." (Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations)
- Largest customer's share of revenue: 16.0% (as of 2025-10-03). "For the three months ended October 2, 2026, two customers accounted for 14% and 13%, respectively, of our net revenue, and for the three months ended October 3, 2025, four customers accounted for 16%, 13%, 13% and 12%, respectively, of our net revenue." (Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations)

## Key insights

### Costs grew 16.1% against revenue growth of 55.5%

Cost of revenue grew 16.1% while revenue grew 55.5%, lifting gross margin to 57.8% from 43.5%, a gap the filing ties to price and newer drives.

Revenue was $4.38B against $2.82B a year earlier, up 55.5%. Cost of revenue was $1.85B against $1.59B, up 16.1%. Gross profit therefore rose 106.5% to $2.53B, and gross margin reached 57.8% against 43.5%. The filing names three causes: "improved pricing, an increased volume of shipments, and a lower cost structure on our newer generation products." _(from the filing)_
Cloud, 88.3% of revenue, grew 54.1% to $3.87B, and the filing says both exabytes shipped and average selling price per exabyte rose, the price on "an improved pricing environment." Client grew 119.2% to $320M, helped by a shift to higher capacity drives. Consumer grew 19.1% to $193M even as exabytes shipped fell. _(from the filing)_
In analysis, the cost line is the tell. A drive's cost is set mostly per drive built, while revenue is earned per exabyte sold. When price per exabyte rises and each generation packs more capacity into a drive, revenue can climb far faster than the cost of making it, which is what the two growth rates show. _(analysis)_
The climb predates this quarter. On the annual figures, gross margin was 28.1% in FY2024, 38.8% in FY2025 and 48.9% in FY2026, before 57.8% now. The filing also notes the year-ago quarter ran a week longer than this one, so the reported growth rates understate growth on equal calendars. _(from the filing)_

### Four-fifths of gross profit now reaches operating income

Operating income was 80.7% of gross profit against 64.5% a year earlier, because operating expenses grew 12.2% while gross profit more than doubled.

Total operating expenses were $488M against $435M, up 12.2%, and fell to 11.1% of revenue from 15.4%. Research and development fell 3.7% to $283M, which the filing attributes to lower compensation-related costs, and dropped to 6.5% of revenue from 10.4%. Selling, general and administrative cost rose 17.4% to $162M. _(from the filing)_
Operating income rose 158.3% to $2.05B, and operating margin reached 46.7% against 28.1% a year earlier. Business realignment charges of $43M, all employee termination benefits, were the fastest-growing cost line, but at 1.0% of revenue they did little to the margin. _(from the filing)_
In analysis, this is operating leverage running forward. Engineering and overhead are budgeted ahead of sales, so extra gross profit from price and mix flows almost entirely to operating income. The same fixed base turned into operating losses in FY2023 and FY2024, when gross profit fell short of it. _(analysis)_

### A one-off gain flatters last year's net income

Operating income rose 158.3% but net income only 50.5%, because last year's quarter included a $611M Sandisk gain equal to 51.7% of its net income.

Net income was $1.78B against $1.18B, up 50.5%, and net margin slipped 1.34 points to 40.6%. The year-ago quarter included a $611M gain on the retained interest in Sandisk, which the filing calls non-recurring and bases on its mark-to-market value at the time. That gain equaled 51.7% of the prior quarter's net income and 77.1% of its operating income. _(from the filing)_
Below operating income, the other lines moved little or helped. Interest expense fell to $11M from $59M, which the filing attributes to the reduction in debt. The effective tax rate, income tax over income before taxes, was 12.7% against 11.6%. _(from the filing)_
In analysis, operating income is the cleaner read of the business this quarter. The lower net margin reflects a comparison with an unusual quarter rather than weaker operations, so reported net income growth understates how much the operations improved. _(analysis)_

### One quarter's free cash flow topped all of FY2025

Free cash flow of $1.38B exceeded FY2025's full-year $1.28B, even as capital spending rose to $227M from $73M a year earlier.

Operating cash flow was $1.60B against $672M a year earlier. Capital spending was $227M against $73M. That left free cash flow of $1.38B, 31.4% of revenue, against $1.28B for the whole of FY2025 and $3.51B for FY2026. _(from the filing)_
Operating cash flow was 0.90 times net income. The filing says improved profitability drove the gain, partly offset by cash absorbed in inventories, as production ramped in response to growing demand, and in receivables, as revenue grew. _(from the filing)_
Capital spending was 5.2% of revenue and 14.2% of operating cash flow. The company expects capital spending as a share of revenue to run modestly above its long-run range over the next two years as it invests in heads and media technology and factory automation. _(from the filing)_
In analysis, the business is funding faster growth and heavier investment from its own cash at the same time. Free cash flow was 77.4% of net income, so profit is reaching the bank, though inventory and receivables built ahead of demand would weigh on cash if orders slowed. _(analysis)_

### Competitive edge

- **Each drive generation lowers the cost of capacity** Revenue is earned per exabyte, and the filing credits a lower cost structure on newer generation products for part of the margin gain.
- **Cloud buyers are committing earlier and for longer** Cloud is 88.3% of revenue, and the filing says longer lead times have customers partnering earlier and extending their commercial arrangements.

### What to watch

- **Price per exabyte is carrying the margin** Consumer revenue rose 19.1% while exabytes shipped fell on higher prices, showing buyers push back when price per exabyte climbs.
- **Ten customers still buy 64% of revenue** The top ten customers were 64% of revenue against 73% a year earlier, and the largest single customer was 14%, counted by end customer.
- **New minimum taxes press on a low tax rate** The effective tax rate was 12.7% against 11.6%, and the company became subject to the US corporate alternative minimum tax this fiscal year.

## Investor view

**Higher prices per exabyte and a cheaper new drive generation lifted Western Digital's gross margin to 57.8%**

### How it makes money

Wikipedia's Western Digital article says the company spun off its flash memory business as Sandisk Corporation in February 2025, "leaving WD solely focused on hard disk drives." That separation is why the annual history breaks between FY2022 and FY2023: the earlier years still carried flash revenue, so they do not compare like for like with the drive-only business that reports today. _(sourced)_
Western Digital now reports one segment, HDD, and sells into three end markets. Cloud, drives for public and private cloud environments and enterprise customers, brought in $3.87B of the quarter's $4.38B revenue, 88.3%. Client, drives sold to PC makers and channel partners, was $320M or 7.3%. Consumer, external drives sold through retail, was $193M or 4.4%. _(from the filing)_
The filing explains revenue in two terms: exabytes shipped and average selling price per exabyte. Cloud revenue grew 54.1% on both at once, with more exabytes shipped on "strong demand for our high-capacity products" and a higher price per exabyte due to "an improved pricing environment." What the company sells, in effect, is capacity, and it is paid by the unit of capacity. _(from the filing)_
Cost of revenue took 42.2% of revenue, leaving a gross margin of 57.8%. Operating expenses were light by comparison, 11.1% of revenue: $283M of research and development and $162M of selling, general and administrative cost. Operating income came to $2.05B, 46.7% of revenue. _(from the filing)_
The buyers are few and large. The ten largest customers were 64% of revenue and the largest single customer 14%, now counted by the end customer even when a distributor or contract manufacturer places the order. Shipments follow those buyers: the Americas took $2.08B (47.5%), Asia $1.71B (39.0%) and Europe, Middle East and Africa $592M (13.5%), a mix the filing ties to "the deployment and build plans of our larger Cloud customers." _(from the filing)_

### What shifted

Revenue grew 55.5% while cost of revenue grew 16.1%, so gross profit rose 106.5% to $2.53B and cost of revenue fell to 42.2% of revenue, 14.3 points lower than a year earlier. The filing gives three reasons: "improved pricing, an increased volume of shipments, and a lower cost structure on our newer generation products." _(from the filing)_
The smaller markets show pricing most plainly. Client revenue rose 119.2% to $320M, which the filing ties to more exabytes, a shift to higher capacity drives and better pricing. Consumer revenue rose 19.1% to $193M even though exabytes shipped fell: the filing says demand softened "as a result of the increased pricing levels." _(from the filing)_
Operating income rose 158.3% to $2.05B, but net income rose only 50.5% to $1.78B and net margin slipped 1.34 points. One line explains the gap: the year-ago quarter included a $611M gain on the retained interest in Sandisk, which the filing calls non-recurring. Interest expense fell to $11M from $59M, which the filing attributes to the reduction in debt. _(from the filing)_
This quarter continues a climb. Gross margin, gross profit over revenue, was 28.1% in FY2024, 38.8% in FY2025, 48.9% in FY2026 and 54.1% in Q4 FY2026, before 57.8% now. Annual revenue went from $6.32B in FY2024 to $12.92B in FY2026, and the FY2024 operating loss of $403M became operating income of $4.45B in FY2026. _(from the filing)_
The year-on-year comparison is slightly unequal against this quarter. The filing says the first quarter of FY2026 ran one week longer than this one, because FY2026 carried the extra week the company adds periodically to keep its fiscal year aligned with the calendar. Growth on equal calendars was therefore somewhat higher than the reported rate. _(from the filing)_

### Risks in the filing

The quarterly report says its risk factors have not changed materially from the 2026 annual report and points readers there. In this filing the company names trade policy directly: tariffs and trading partners' responses have not materially affected results so far, and it is "actively monitoring developments and assessing options to mitigate potential future actions." _(from the filing)_
Revenue depends on a small group of buyers. The ten largest customers were 64% of revenue and the largest one 14%, and three customers held a large share of receivables at quarter end. The company also states that its geographic mix moves with the build plans of its larger Cloud customers, so their timing shapes its quarters. _(from the filing)_
Tax is moving against the company's low rate. Its effective tax rate was 12.7%, against 11.6% a year earlier, well below the US statutory rate. It became subject to the US corporate alternative minimum tax this fiscal year, faces the global minimum tax in Malaysia and Thailand, and says part of its liability for unrecognized tax benefits could be paid in cash within the next twelve months. _(from the filing)_
Two legal and financing items remain open. A patent case brought by SPEX Technologies is on appeal on both sides; the company has not accrued a liability, saying a loss is not probable. Its revolving credit facility matures in January 2027 and carries a leverage ratio covenant, which the company says it met at quarter end. _(from the filing)_
Of these, the numbers already show two. Price sensitivity is visible in Consumer, where buyers took fewer exabytes as prices rose. Customer concentration is easing on a like-for-like count, since the prior year was restated to the new method. The tax and financing items do not show in this quarter's margins yet. _(analysis)_

## Founder view: mechanisms

### Capacity priced in a three-maker market

Western Digital sells storage capacity into a market with three suppliers and a handful of very large buyers who need that capacity on a schedule. When demand for exabytes outruns what the industry can build, price per exabyte rises on drives that are already designed and qualified. Because making a drive costs the same whatever it sells for, nearly all of a price increase falls through to gross profit. _(analysis)_

### Each drive generation holds more for little more cost

A hard drive's cost is mostly per drive: heads, platters, motor, assembly and test. Its revenue is per exabyte. Each generation that fits more capacity into the same drive therefore cuts the cost of each exabyte, and if price per exabyte holds, margin widens without any change in the factory's output of drives. _(analysis)_

### A flat engineering budget spread over more revenue

Most of Western Digital's operating cost is engineering and overhead decided ahead of time, not spent per sale. When revenue rises on price and volume and that base stays flat, almost all of the extra gross profit reaches operating income. The same structure works in reverse when prices fall, which is how the downturn years in the history produced operating losses. _(analysis)_

### Customers commit earlier when supply is tight

When lead times lengthen, large buyers plan with their supplier earlier and sign longer arrangements to secure supply. The supplier gains visibility to plan production and capital spending; in exchange it ties its quarters to a few buyers' build plans. The filing describes exactly this shift for high-capacity drives. _(analysis)_

## Member research

Signed-in members read, on the page: what Western Digital's numbers depend on from here, and the playbook behind each mechanism (what needs scale, what transfers, how to test it, the metric that would show it).

## Sources

- Western Digital 10-Q for the period to 2026-10-02: https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/ (2026-10-23)
- Western Digital (Wikipedia): https://en.wikipedia.org/wiki/Western_Digital
- Hard disk drive (Wikipedia): https://en.wikipedia.org/wiki/Hard_disk_drive

Methodology business-lens-1.0 · schema 1.2.0 · run business-lens-2026-11-02 · as of 2026-11-02