Shares of Micron's Buenos Aires listing surged 11.1% to $237.25 after the Boise-based memory chipmaker delivered a fiscal third quarter that obliterated every Wall Street forecast and issued guidance that suggests the AI-fueled boom is still accelerating.

  • Revenue Quadrupled, and the Beat Was Massive

Micron reported record revenue of $41.5 billion and gross margins of 84.9%, both company records.

Adjusted earnings per share of $25.11 beat consensus estimates by $4.62, and revenue surpassed forecasts by $5.77 billion. To put that in perspective, Micron earned just $1.91 per share in the same quarter last year. This wasn't a marginal beat — it was a blowout that signals demand for AI-related memory chips is running far ahead of what even optimistic analysts expected.

  • Next Quarter's Guidance Leaves Analysts Behind Again

Micron projected fiscal fourth-quarter revenue of approximately $50 billion, plus or minus one billion, against analyst estimates of roughly $44 billion.

Management expects gross margins to rise to 86% with adjusted EPS of $31.00. For shareholders, this is the critical signal: it means the pricing power driven by an AI memory shortage isn't fading — it's intensifying. Companies don't raise guidance by $6 billion above consensus if they see demand softening.

  • $22 Billion in Locked-In Customer Commitments Reduce Cyclical Risk

Micron signed 16 long-term agreements with data center operators and automakers locking in sales for three to five years, with expected financial commitments of $22 billion.

The company's entire 2026 supply of high-bandwidth memory is sold out, and it has collected $22 billion in customer cash deposits — essentially prepayments from cloud giants desperate to secure supply. This shifts Micron's business model from the boom-and-bust commodity cycles that historically plagued memory companies toward something more predictable.

  • The Risk Nobody Wants to Talk About: 85% Margins Aren't Normal

Memory pricing is cyclical by nature, and the current supercycle depends on big tech companies continuing to spend heavily on AI infrastructure. If that spending slows or supply catches up, margins would compress rapidly.

Only three companies globally supply high-bandwidth memory at scale , which supports pricing today — but the current margins reflect shortage economics, not a permanent structural advantage. Investors riding the Buenos Aires listing higher should weigh how much of this historic profitability is already priced in.