Shares of Micron Technology surged +3.73% to $945.25 as the memory-chip giant formalized a $50 billion Idaho expansion that doubles down on the explosive demand for AI-grade memory. The move is part of a broader spending spree now totaling over $250 billion through 2035 — a staggering wager that the AI infrastructure boom is structural, not cyclical.
• The Factories: Two New Plants With First Chips by Mid-2027
Micron is building two new fabrication facilities in Boise, Idaho, with a $50 billion investment.
The company expects to move manufacturing equipment into the first fab later this year and produce the first wafers in mid-2027.
The project will add an estimated 17,000 jobs in Idaho. For shareholders, this means significant capital expenditures before a single chip rolls off the line — but also a faster path to capturing share in the memory market powering every major AI chip.
• AI Demand Is So Hot That Micron Can't Make Enough
CEO Sanjay Mehrotra said Micron can currently fulfill only between half and two-thirds of customer demand for its high-bandwidth memory (HBM) — specialized chips that AI processors need to function. Its entire 2026 HBM supply is sold out, and it has collected $22 billion in customer cash deposits — essentially prepayments from cloud giants desperate to lock in supply. Last quarter, revenue hit a record $41.46 billion, up roughly 345% year-over-year, with gross margins reaching approximately 81%. That kind of pricing power is almost unheard of in the historically boom-and-bust memory business.
• The Bigger Picture: $250 Billion Across Three States, Backed by Federal Subsidies
In New York, Micron plans to invest up to $100 billion in up to four fabs over 20-plus years.
The company has secured up to $6.4 billion in CHIPS Act direct funding and qualifies for additional federal manufacturing tax credits. Those subsidies soften the blow of massive capital spending, but they won't eliminate risk if AI investment slows.
• The Downside Nobody Wants to Talk About Memory chips have a brutal history of oversupply crashes. Even bulls acknowledge that future oversupply remains a potential risk.
High interest rates could dampen non-AI tech spending and create liquidity pressures. Micron is effectively betting tens of billions that AI demand will grow fast enough to absorb all the new capacity it — and its rivals Samsung and SK Hynix — are building simultaneously. If it does, this expansion could cement Micron as core AI infrastructure. If it doesn't, shareholders will be left holding very expensive factories.