Western Digital Corp. (WDC) - 10-Q Summary
Business Context and Reporting Period
Company: Western Digital Corporation (WDC)
Filing Type: Form 10-Q (Quarterly Report)
Period Ended: January 2, 2026 (Fiscal Q2 2026)
Business Overview: WDC is a leading developer and manufacturer of data storage devices based on hard disk drive (HDD) technology. Following the separation of its Flash business (SanDisk) in February 2025, the company operates as a pure-play HDD provider serving Cloud, Client, and Consumer markets.
Key Financial Metrics
| Metric (in millions) | Q2 2026 (3 Months) | Q2 2025 (3 Months) | YTD 2026 (6 Months) | YTD 2025 (6 Months) |
|---|---|---|---|---|
| Net Revenue | $3,017 | $2,409 | $5,835 | $4,621 |
| Gross Profit | $1,380 | $907 | $2,607 | $1,713 |
| Gross Margin | 45.7% | 37.7% | 44.7% | 37.1% |
| Operating Income | $908 | $560 | $1,700 | $894 |
| Net Income (Continuing Ops) | $1,842 | $466 | $3,024 | $619 |
| Diluted EPS (Continuing Ops) | $4.73 | $1.27 | $7.82 | $1.69 |
| Operating Cash Flow (6 Months) | $1,417 | |||
| Total Debt (Carrying Value) | $4,655 | |||
| Cash & Equivalents | $1,975 |
Material Changes vs. Prior Period
- Revenue Growth: Net revenue increased 25% year-over-year (YoY) for Q2 and 26% for the six-month period, driven by a 22-23% increase in exabytes sold and improved average selling prices (ASPs) due to higher capacity drives.
- Margin Expansion: Gross margin improved by 8 percentage points YoY to 45.7% in Q2, attributed to a lower cost structure on newer generation products and favorable pricing.
- Unusual Gain: Net income was significantly boosted by a non-cash, unrealized gain of $1.10 billion (Q2) and $1.71 billion (YTD) on the retained interest in SanDisk, reflecting mark-to-market valuation changes post-separation.
- Operating Expenses: R&D expenses increased 28% YoY due to higher variable compensation and innovation investments. SG&A expenses decreased slightly due to the separation of SanDisk, which transferred certain overhead roles.
- Customer Concentration: The top 10 customers accounted for 76% of Q2 revenue, up from 67% in the prior year period.
Guidance, Outlook, and Risks
- Outlook: Management cites increasing long-term demand for data storage driven by AI and hybrid workloads. Capital expenditures for 2026 are expected to be 4% to 6% of net revenue.
- Debt Strategy: The company expects to monetize its remaining stake in SanDisk within one year to further reduce debt. The $1.6 billion 2028 Convertible Notes are currently classified as current liabilities because the conversion feature was triggered in Q4 2025.
- Capital Allocation: The company repurchased $1.17 billion of common stock YTD and declared a quarterly dividend of $0.125 per share. $684 million remains available under the share repurchase program.
- Risks: Key risks include global trade policy changes and tariffs, supply chain disruptions, customer concentration, and the outcome of ongoing litigation (specifically the SPEX Technologies patent case, where a jury previously awarded damages but the court later reduced the award to nominal damages pending appeal).
- Tax Environment: The company is subject to Global Minimum Tax (GMT) in Malaysia, Thailand, and the Philippines. New U.S. tax legislation (OBBBA) allows for immediate expensing of domestic R&D starting in 2026.
Investor Verification Checklist
- SanDisk Valuation: Verify the sustainability of the $1.1 billion unrealized gain on the retained SanDisk interest and the timeline for monetization.
- Convertible Notes: Confirm the status of the $1.6 billion 2028 Convertible Notes, which are currently classified as current debt due to triggered conversion rights.
- Customer Concentration: Assess the risk associated with the top 10 customers representing 76% of revenue.
- Legal Proceedings: Monitor the appeal status of the SPEX Technologies patent litigation and potential financial impact.
- Tax Rate Volatility: Review the effective tax rate (6% in Q2) which is significantly below the statutory rate due to tax-free gains and jurisdictional mix.