Micron Sold Out 2026 HBM and Locked In $100 Billion of Demand

The Print That Broke the Model

Micron reported fiscal Q3 2026 results on June 24 after the close, and the numbers don't read like a memory company. Revenue hit a record $41.46 billion, up 346% year over year and 74% sequentially, with non-GAAP EPS of $25.11 beating consensus by $4.62 and gross margin landing at a company-record 84.9%. DRAM did $31.3 billion (76% of the mix); NAND added $9.9 billion. Data center revenue cleared $25 billion — an annualized run rate above $100 billion.

But the line that moved the stock wasn't a margin figure. CEO Sanjay Mehrotra said Micron's entire 2026 HBM supply is sold out and the company can fill only half to two-thirds of customer demand, with no line of sight on when supply catches up and no meaningful new fab output until fiscal 2028.

From Commodity Cycle to Booked Backlog

Memory has always been a cyclical commodity — you build capacity into a shortage, the shortage breaks, prices collapse. This quarter Micron disclosed the mechanism meant to short-circuit that: 16 strategic customer agreements representing roughly $100 billion in minimum contracted revenue, with about $22 billion already collected as upfront customer deposits. Hyperscalers aren't placing orders here; they're prepaying to reserve a scarce input.

The HBM4 ramp backs the scarcity story — Micron shipped over $1 billion of HBM4 revenue, ramping roughly twice as fast as HBM3E. Whether that fully kills the cycle is the real debate, but the Q4 guide is consistent with a company that controls its own supply: $50.0 billion in revenue, plus or minus $1.0 billion, at roughly 86% gross margin, with EPS guided near $31.00.

Where the Stock and the Perp Sit

MU went into the print already up more than 324% year to date and through a $1 trillion market cap, so a beat alone wasn't going to move it — the guide and the backlog did. Shares jumped 13.7% after hours to about $1,192, and the HIP-3 perp ran 19.54% to roughly $1,214, pressing the prior 52-week high near $1,213.56.

Sell-side targets are scattered wide: Bank of America at $1,500, with the broader desk cluster running from $1,200 toward $1,750. At ~$1,214 the perp trades in the lower half of that range, which means a chunk of the bull case is already in the price. The real risk now isn't demand — it's the first forward quarter where the sold-out narrative meets early evidence of supply catching up.