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Western Digital Corporation (NASDAQ:WDC) closed at $397.28 on October 9. The stock has returned 13.4% during the last six months, compared to a 24.3% return for the Insider Monkey Billionaire Index and 15.1% for State Street SPDR S&P 500 ETF Trust.
Western Digital reports a net margin no hardware manufacturer has ever sustained. Storage has a long history of destroying anyone who mistakes a shortage for a moat. This is a shortage.
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The Profit Came From a Shareholding, Not From Drives:
No storage company keeps nearly three-quarters of its revenue as profit, and this one did not either. Western Digital separated its flash memory business as SanDisk in February 2025 and retained a stake. Accounting rules require that retained interest be marked to market, and SanDisk shares rose a long way. The resulting gain is most of the reported profit.
The cash statement confirms it plainly. Free cash flow came in at a fraction of reported net income, and that spread is the shareholding rather than the drives. Strip it out and what remains is genuinely strong, because the operating margin of 43.61% belongs to Western Digital and it is a remarkable number for storage hardware. Revenue grew 43.80% as data centres bought high-capacity drives faster than the industry could build them, on a balance sheet carrying barely a billion of debt. The stake itself is in a chip business, which is the sector doing the work here and the reason so much money sits in the semiconductors billionaires added to this year. Their most-held name is up 18% since June.
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This Is What a Cycle Top Looks Like:
Storage is cyclical, and this is what the top of a cycle looks like. Drive prices rose because buyers wanted capacity faster than it could be manufactured, not because Western Digital won share.
That matters for how the multiple should be read. A cyclical trades at its lowest earnings multiple precisely when its earnings are highest, which is the opposite of a bargain signal. Micron spent years looking cheap on exactly this arithmetic and expensive once memory pricing turned.
Capacity is already being added across the industry, which is the predictable response to margins like these. The question is not whether supply arrives but when. Cheapest multiple at the highest earnings is the oldest trap in commodities, and avoiding it is most of what separates a cyclical from the high return list we published in January. The one we ranked first there is up 24% since.
