Western Digital makes the hard disk drives that hold most of the cloud’s data, and since spinning off Sandisk in February 2025 it makes nothing else. In the 53-week fiscal year to 3 July 2026 its revenue rose 35.7% to $12,919 million at a 48.9% gross margin, and net income reached $9,424 million, of which $6,498 million was a tax-free gain on the Sandisk shares it kept at the split. This is a full institutional-grade equity research report on Western Digital Corporation (NASDAQ: WDC), written to teach hard-drive technology from first principles and built from SEC XBRL company facts, fifteen years of Forms 10-K, the 10-Qs, the earnings releases and the transaction filings, into eight chapters and 87 rebuilt charts.
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