Micron’s monster quarter is forcing investors to rethink the AI selloff

Just days after investors started questioning the entire AI trade, Micron delivered one of the most explosive earnings reports in the sector.

The numbers were staggering.

Fiscal Q3 2026 revenue reached $41.46 billion.

That was a 346% increase from a year earlier.

Non-GAAP earnings came in at $25.11 per share, crushing analyst estimates of roughly $20.83.

Gross margins hit a record 84.9%.

Then came the guidance.

Micron expects roughly $50 billion in revenue next quarter and around $31 per share in non-GAAP earnings.

The company also disclosed roughly $100 billion in multi-year agreements, highlighting how much demand remains locked in.

The timing could not be more important.

Over the past several weeks, investors have questioned whether hyperscalers were spending too much on AI infrastructure.

Chip stocks sold off.

The AI trade came under pressure.

Markets began asking whether returns would ever justify the spending.

Micron’s report just provided a very different answer.

If AI demand is collapsing, somebody forgot to tell Micron’s customers.

The company says demand for AI memory remains extremely strong, with CEO Sanjay Mehrotra pointing directly to AI-driven growth.

Investors responded immediately.

The stock surged more than 13% in after-hours trading.

The broader semiconductor sector also received a major boost.

That does not mean every AI company is suddenly cheap.

It does not mean valuations no longer matter.

But it does challenge one of the biggest fears behind the recent selloff.

The market spent the last week worrying that AI spending was slowing.

Micron just reported numbers that suggest the spending spree is still very much alive.