Micron Extends Its Post-Earnings Slide as the Tape Sells AI as One Basket

Selling the Best Quarter Micron Ever Printed

Micron closed its fiscal Q3 books on a quarter that beat on every line. Revenue came in at $41.46 billion, up roughly 346% year over year, at a record 84.9% adjusted gross margin. The guidance was the bigger shock: a record $50 billion in Q4 revenue and about $31 in EPS, roughly 15-22% above consensus. The stock popped about 16% Thursday to an all-time-high close of $1,213.56, stretching its year-to-date run past 325%.

Two sessions later the perp is back to roughly $1,139, down 3.26% over the last nine hours and about 6% off that high. Nothing in the fundamentals changed in 48 hours. The tape did.

A Basket Repricing, Not a Micron Verdict

The seller here isn't grading Micron. On Friday the New York Times reported that OpenAI may push its IPO from 2026 into 2027, weighing a sub-$1-trillion debut now against waiting for a cleaner valuation later — a hesitation made sharper by SpaceX's wobbly public-market debut. That single headline hit the whole AI-infrastructure complex at once, and Micron sold off alongside Nvidia and AMD as one undifferentiated AI basket.

When a memory company that just posted its best quarter ever trades down on another company's IPO timeline, the market is repricing AI exposure wholesale, not re-rating Micron's earnings. The nine-hour continuation into the weekend on the 24/7 perp is the same trade bleeding into a second session.

The 10x Forward Tell

Here's the tension the selloff creates. Even after a 325% run, MU trades around a ~10x forward P/E against ~27x trailing — because the guided $31 in Q4 EPS sits so far above what the current share price implies. Micron also disclosed roughly $100 billion in contracted customer revenue and carries order books into 2027 at high-60s gross margins, against a memory backdrop where DRAM prices have risen 90-95% quarter over quarter.

A low-double-digit forward multiple on accelerating earnings is the market pricing a cycle peak. The guidance and the contract book argue the opposite. That gap is the entire trade: either the basket sellers are right that AI-capex is topping, or they're handing back one of three memory makers in a sold-out market at a single-digit-to-low-teens forward multiple. The next real signal is whether MU starts decoupling from the chip basket or keeps trading tick-for-tick with names that never printed an 84.9% gross margin.