Micron's $10 Billion Bet Signals No End to the AI Memory Boom

Micron Technology said this week it will spend $10 billion over the next decade on a new research lab in Boise, Idaho, dedicated to advancing memory technology for the AI era. The announcement lands just weeks after the chipmaker posted its fifth straight quarterly revenue record, and it's a clear signal management believes the current memory boom has years left to run. The stock's recent pullback suggests not every investor is convinced yet.

The numbers behind the bet are striking. Micron's fiscal third-quarter revenue hit $41.5 billion, up 346% from $9.3 billion a year earlier, with data center sales alone contributing $25.3 billion -- more than 60% of the total. Guidance for the current quarter calls for roughly $50 billion in revenue and gross margin near 86%, both would-be records. The driver is high-bandwidth memory, the stacked DRAM chips that feed AI accelerators, and JPMorgan estimates DRAM prices will have jumped 400% from the start of 2024 to the end of 2026. Micron controls roughly a quarter of the global DRAM market, which TrendForce projects will grow from $618.7 billion this year to $903.3 billion by 2027. The Boise lab builds on more than $250 billion the company has now committed to U.S. manufacturing and research through 2035.

For investors, the tension is valuation against history. Micron's trailing 12-month net income has reached $50.5 billion, but $42 billion of that arrived in just the two most recent quarters -- annualize that pace and the stock trades at roughly 13 times run-rate earnings, a multiple that only makes sense if today's growth holds. Memory has a track record of sharp reversals: Micron has seen annual revenue drop by as much as 50% when past cycles turned, and rival SK Hynix plans to add competing capacity as soon as next year. Micron is hedging with 16 multiyear customer supply agreements locking in prices and volumes. Investors bullish on the AI infrastructure trade should keep Micron on the radar for continued earnings momentum, but size positions with the memory sector's boom-bust history in mind rather than treating the current run rate as the new normal.