Research theme · Micron · Q4 FY2026 · information date: 1 October 2026

Micron Q4 FY2026: can record margins remain cash-accretive after reinvestment?

The reported quarter demonstrates exceptional memory economics. The valuation question is narrower: whether those economics can continue to create cash per share while the company expands manufacturing capacity. This is a research framework, not a target price or trading recommendation.

Two disclosed facts used hereQ4 gross margin 86.8% · net capital expenditure $10.77bn

The price condition being tested

For a valuation that reflects unusually strong memory economics to remain defensible, demand, product mix and pricing must sustain high margins while new capacity continues to earn more cash than it consumes on a per-share basis.

Record revenue is evidence of current demand. It is not, by itself, proof that the economics will remain durable as reinvestment and supply expand.

Evidence that partly supports the condition

Cash generation currently exceeds the quarter's reinvestment need.

Adjusted free cash flow was $33.20bn in Q4

Operating cash flow was $43.97bn, while net capital expenditure was $10.77bn. That is tangible evidence that the reported margin is producing cash in the current period.

Evidence that can still overturn it

Capital intensity remains part of the earnings claim.

FQ1 FY2027 revenue outlook: $61.5bn ± $1.5bn

The stronger outlook supports demand visibility, but it also raises the proof required: future gross margin, capital spending and free cash flow must move together rather than rely on a single record quarter.

The next disclosure checks

What must be verified before maintaining or changing a valuation view?

  1. Does the next quarter's revenue and gross margin land within the disclosed guidance range?
  2. Does operating cash flow continue to cover net capital expenditure and preserve free cash flow?
  3. Do changes in capacity, supply and product mix preserve the per-share economics rather than only increase total revenue?
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