Micron Q3 non-GAAP EPS of $25.11 beat by $4.83; revenue $41.46B surged 346% YoY on AI-driven HBM demand. Guidance also topped views. The memory cycle is still early.
Micron Technology (MU) posted a massive beat in its fiscal third quarter, with non-GAAP earnings per share of $25.11 topping estimates by $4.83. Revenue came in at $41.46 billion, up 345.8% from a year earlier, driven by surging demand for high-bandwidth memory (HBM) used in AI data centers.
The memory maker has been a direct beneficiary of the AI buildout. HBM3E, its latest generation, is now in volume production and shipping to Nvidia and other GPU designers. That product line alone accounted for a growing share of revenue in the quarter, though Micron did not break out exact figures. The broader DRAM and NAND markets also saw price increases as supply discipline among manufacturers held.
The beat was the largest in percentage terms in at least five quarters. Gross margins expanded sharply, helped by a richer mix of HBM and higher average selling prices across the portfolio. Operating expenses rose but at a slower pace than revenue, driving operating leverage.
What changes for the investment case? The AI memory cycle is still in its early innings. Hyperscalers continue to place orders for HBM3E through 2025, and Micron's capacity expansion in Taiwan and the U.S. is on track. The risk is that DRAM oversupply returns once non-AI demand softens or competitors ramp HBM output faster than expected. For now, the demand signal is clear.
Micron's guidance for the current quarter also came in above consensus, though the company did not provide a specific number in the release. Analysts had expected revenue of roughly $39 billion for Q4. The company cited continued strength in data center and enterprise spending.
The stock has more than doubled over the past year. After the print, shares traded higher in after-hours action, extending gains from the regular session. The next catalyst is the ramp of HBM4 development, which Micron said is on schedule for sampling in 2026.
For traders watching the memory cycle, the key metric to track is HBM revenue mix. If it crosses 30% of total revenue in the next two quarters, the margin story gets a structural upgrade. If it stalls, the stock will trade on DRAM spot prices again.
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