Micron raises its US investment plan to $250B+ through 2035, pours first concrete at Clay

Micron raised its planned US investment to more than $250B through 2035, citing AI-driven memory demand, and poured first concrete at its Clay, New York megafab — more than a quarter ahead of schedule, moving from site prep to vertical construction. The company targets producing 40% of its DRAM in the US, across projects in New York, Idaho and Virginia; the Clay site is slated to become the largest semiconductor manufacturing site in US history (~50,000 New York jobs, 9,000 direct).

Why it matters

Micron's capex announcements are compounding on a weekly cadence now — Hiroshima's $9.3B HBM fab, automotive supply deals with GM and Ford, and a $250B decade-long US commitment — all pointing the same direction: management is spending as if the memory shortage is structural, not cyclical. Ahead-of-schedule concrete is the tell that this plan has momentum, not just press releases.

What to watch

Whether the memory cycle validates the buildout before Clay's first tools arrive, and federal/state incentive terms attached to the expanded plan.