Shares of Western Digital cratered 11% to $462.10 the day after the company posted a fiscal fourth quarter that topped Wall Street on every metric that matters. The sell-off, dragging peers like Seagate and SanDisk down with it, raises an uncomfortable question: has the AI-driven storage trade gotten too far ahead of the business?
• The Numbers Were Excellent — But the Stock Had Already Priced Them In.
Revenue hit $3.75 billion, beating the $3.70 billion consensus, representing 44% growth year-over-year. Earnings per share came in at $3.56, clearing the Street estimate of $3.32. The problem? WDC shares had surged 18.7% in the seven days before earnings , effectively front-running the beat. When the results merely confirmed what momentum traders expected rather than blowing past them, profit-taking hit hard.
• Guidance Beat Estimates, but Investors Wanted More.
Management guided Q1 fiscal 2027 revenue to $4.1 billion (±$100 million), gross margins of 55%–56%, and EPS of $4.00 (±$0.15) — about 1.5% above analyst estimates . In normal times, that's a solid outlook. But when a stock trades at roughly 45 times trailing earnings (full-year EPS of $10.22), a modest guidance beat doesn't justify the valuation premium baked in. The outlook "fell short of elevated investor expectations, triggering a sector-wide pullback in AI memory and storage stocks."
• The Balance Sheet Tells a Stronger Story Than the Stock Price.
Long-term debt fell to zero and shareholders' equity rose to $8.9 billion.
The company generated $3.5 billion in free cash flow for fiscal 2026 and returned $3.1 billion to shareholders through buybacks and dividends. That's a business in rare financial health, which makes the sell-off a valuation correction — not a fundamental deterioration.
• The Cloud Concentration Is a Double-Edged Sword.
Cloud revenue now accounts for 89% of total sales, growing 43% to $3.3 billion , driven by hyperscaler demand for massive hard drives to store AI-generated data. That dependency supercharges growth when data-center spending is hot but exposes Western Digital to sharp slowdowns if big-tech customers pull back capital budgets — a risk underlined by $13.7 million in insider stock sales over the last three months with no insider buying .
The bottom line: Western Digital's business is firing on all cylinders, but its stock got ahead of itself. What happens next depends on whether AI storage demand keeps compounding — or merely cycles.