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Micron (MU) delivered a standout 4Q25 report, surging past expectations on both the top and bottom lines after previously lifting guidance in August. The company’s upside 1Q26 forecast, driven by explosive demand for HBM (high bandwidth memory) chips, reinforces its emerging leadership in the AI memory space.

• EPS rose 157% yr/yr to $3.03, and revenue jumped 46% to $11.32 bln, both topping expectations and the company's raised guidance.
• HBM chip sales surged, driving a 214% revenue increase in the Cloud Memory unit. HBM now contributes 16% of total revenue, nearing $2 bln.
• HBM supply is fully booked through 2025, with demand visibility extending into 2026.
• Gross margin expanded 670 bps to 45.7%, beating estimates. MU guided 1Q26 gross margin at 51.5% (+/-1%), reflecting strong HBM pricing.
• 1Q26 guidance was above consensus for both EPS and revenue, indicating continued strength in AI-related demand.
• The results provide a positive readthrough for the AI sector, including peers like NVIDIA (NVDA), Advanced Micro Devices (AMD), Broadcom (AVGO), and Taiwan Semi Manufacturing (TSM).
• MU also announced a partnership with TSM to manufacture HBM4 base logic dies, giving it access to advanced packaging and reinforcing its position in next-gen AI memory.

Briefing.com Analyst Insight:

MU delivered a beat-and-raise quarter that exceeded already high expectations. While AI tailwinds  -- especially in HBM --  are clearly strong, the recent 40% stock run has priced in much of this momentum. The TSM deal is a strategic win, but execution and margin sustainability will be key as competition intensifies. MU is well-positioned, but near-term upside may be limited without another leg of growth.