Western Digital’s Earnings Surge Exposes AI’s Insatiable Hunger for Storage

Western Digital just posted results that few saw coming even a year ago. Revenue climbed 45% from the prior year to $3.3 billion in its fiscal third quarter. Adjusted earnings per share nearly doubled to $2.72. The storage maker beat Wall Street forecasts handily. And its stock has responded with a stunning run, recently trading near all-time highs above $700 a share.

But the numbers tell only part of the story. Hyperscalers building out artificial-intelligence infrastructure have created a new class of demand. They need massive data lakes to train and run models. High-capacity hard drives from Western Digital fill that need at scale. Cloud customers now account for the vast majority of sales. The shift has transformed the company from a cyclical memory supplier into something closer to essential infrastructure for the AI age.

From Cyclical Supplier to AI Infrastructure Powerhouse

Look back to the January quarter. Revenue reached $3.02 billion, up 25% year over year. Non-GAAP gross margin hit 46.1%. Adjusted EPS came in at $2.13. Western Digital’s official Q2 FY2026 earnings release highlighted 215 exabytes shipped and cloud revenue making up 89% of the total.

Irving Tan, CEO, credited “disciplined execution to meet demand in the AI-driven data economy.” Customers, he said, placed confidence in the company’s ability to deliver reliable, high-capacity HDDs at scale. Kris Sennesael, chief financial officer, pointed to continued data-center demand and adoption of high-capacity drives as the path to further margin gains. The company guided for Q3 revenue around $3.2 billion at the midpoint with non-GAAP EPS of $2.30.

Those figures look conservative now. Actual Q3 results smashed them. Revenue topped $3.3 billion. EPS reached $2.72. Gross margin crossed the 50% threshold for the first time in recent memory. The Yahoo Finance report on the earnings captured the momentum perfectly: earnings nearly doubled on AI and cloud demand.

But the real tell lies off the income statement. Western Digital has sold out its entire 2026 hard-drive production capacity. Long-term contracts with its top hyperscale customers stretch into 2027 and 2028. A February Yahoo Finance analysis described the situation as the company doubling down on AI data centers while cleaning up its balance sheet through a planned exit from most of its remaining SanDisk stake.

The strategic pivot makes sense. Consumer flash memory carried higher volatility. Enterprise HDDs for nearline storage offer more predictable, higher-margin growth in the current environment. AI training clusters consume vast amounts of data. Inference workloads demand fast access to that data. Both require storage in quantities the industry has never seen.

Wall Street has taken notice. Morgan Stanley and other banks raised price targets in recent weeks. The stock has climbed more than 1,000% from its 2025 lows. Yet analysts still debate how long the surge can last. Memory prices have begun to firm. Supply remains tight. New capacity from competitors will eventually come online. For now, though, demand shows no sign of slowing.

The Wall Street Journal’s coverage put Western Digital’s $3.21 billion in quarterly profit alongside SanDisk’s even larger gain. Both companies benefited as data storage emerged as a key bottleneck in scaling AI infrastructure. NAND flash and high-capacity HDDs alike have become scarce resources in the race to build ever-larger clusters.

Recent market moves reinforce the theme. As of mid-June 2026, Western Digital shares continued climbing on analyst upgrades and broader enthusiasm for memory names. Reports from the past week show the stock rising 4-7% in single sessions amid renewed AI trade momentum. Pricing power has returned. Apple’s recent comments on unavoidable memory cost increases only added fuel.

Still, risks remain. The company continues its multi-year effort to streamline operations. Balance-sheet improvements from the SanDisk transaction should help. Execution on next-generation technologies such as heat-assisted magnetic recording will determine whether it can maintain leadership in areal density. Customers locked in for 2026 may push for even higher capacities in 2027.

Investors now watch the July earnings closely. Guidance for the current quarter points to continued growth. Revenue could approach $3.65 billion. Margins are expected to hold strong. The question is whether the market has already priced in several quarters of outperformance. Or whether the AI storage supercycle has further to run.

One thing seems clear. Storage no longer plays second fiddle to compute in the AI conversation. Without massive, affordable capacity, the models don’t get trained. Without fast, reliable retrieval, they don’t deliver results at scale. Western Digital finds itself at the center of that reality. Its recent results and sold-out order book suggest the position is paying off handsomely. For now.