Micron Technology (MU) delivered another blockbuster quarter, blowing past Wall Street expectations as soaring demand for memory chips used in AI infrastructure drove revenue and profits to new records. The memory giant reported fiscal fourth-quarter revenue of $54.23 billion, up 379% from a year earlier and comfortably above the roughly $50.45 billion analysts expected. Adjusted earnings reached $33.42 per share, also topping forecasts, while adjusted gross margin climbed to 87%.
Despite the huge beat, Micron shares saw a relatively muted reaction Thursday as investors weighed the company’s aggressive expansion plans and questions surrounding how long extraordinary memory pricing can persist.
AI Demand Keeps Breaking Records
Micron’s numbers illustrate just how dramatically the AI infrastructure boom has reshaped the memory business. DRAM revenue reached a record $39.8 billion during the quarter, while NAND revenue climbed to $14.1 billion. Data centers remain the biggest engine behind that growth. AI accelerators require enormous amounts of high-bandwidth memory, or HBM, alongside other advanced memory products, leaving suppliers racing to expand production fast enough to meet demand.
Micron’s customer commitments provide another indication of how tight the market has become. Long-term agreements backed largely by customer deposits have climbed to roughly $32 billion from $22 billion in June, while remaining performance obligations have surged to around $150 billion.
Micron Sees an Even Bigger Quarter Ahead
Management isn’t signaling a slowdown anytime soon. Micron expects fiscal first-quarter revenue of approximately $61.5 billion at the midpoint, well above Wall Street estimates of roughly $57 billion. Adjusted earnings are expected to reach approximately $38.15 per share. That outlook suggests Micron could immediately follow its record fourth quarter with another record-setting period as AI infrastructure spending continues.
More importantly, management believes memory supply could remain extremely tight through 2027 and 2028. That outlook could help address one of the biggest concerns surrounding Micron: whether today’s extraordinary earnings represent the peak of another traditional memory cycle.
Memory Shortage Could Have Years to Run
Memory has historically been an intensely cyclical industry. Manufacturers increase capacity when prices rise, eventually creating excess supply that sends prices and profits sharply lower. The AI boom is testing that pattern. Building new semiconductor capacity takes years, while increasingly sophisticated AI systems require substantially more memory.
Micron is expanding production in the U.S. and Japan, but some of that additional capacity will not begin arriving until 2027 and beyond. That supply constraint has helped Micron generate extraordinary pricing power and margins. Wall Street analysts increasingly see tight supply extending the current earnings cycle rather than ending abruptly after 2026.
Spending Is the Other Side of the AI Boom
Meeting that demand won't come cheaply. Micron is preparing for a major increase in capital expenditures as it builds additional fabrication capacity needed to support future memory demand. That spending helps explain why the stock reaction was less dramatic than the headline earnings numbers might suggest.
Investors must weigh exceptional near-term profitability against the billions of dollars required to expand capacity — and the possibility that supply eventually catches up with demand. Still, Micron enters that investment cycle from an unusually strong position. Record profitability, growing customer commitments and long-term agreements give the company substantially greater visibility than it has traditionally enjoyed during memory upcycles.
Looking Ahead
Micron’s latest quarter strengthens the case that AI infrastructure spending is creating something bigger than a short-lived memory rebound. Revenue, margins and customer commitments are all surging, while management now expects supply-demand conditions to remain exceptionally tight well beyond the current fiscal year. The question for investors is shifting from whether AI demand is real to how long Micron can maintain its extraordinary pricing and profitability as new capacity comes online. If tight memory supplies persist through 2027 and 2028 as management expects, the company’s latest record quarter may look less like the top of the cycle and more like another step in a much longer AI-driven expansion.
