Micron Technology crossed the $1 trillion market cap threshold on May 26, closing at roughly $891 per share after a staggering 19% single-day surge.

The catalyst was a UBS upgrade that nearly tripled the firm’s price target for Micron, from $535 to $1,625, now the highest on Wall Street. The reasoning was straightforward: high-bandwidth memory chips, the kind Micron makes, have become the bottleneck in the AI infrastructure buildout. And right now, Micron can’t make them fast enough.

Why memory chips are suddenly the main character

Micron’s HBM capacity is fully sold out through the end of 2026, according to the UBS analysis. The company’s most recent quarterly HBM revenues came in at approximately $2 billion, a figure that would have been nearly unthinkable for a single memory product line just a few years ago.

The trillion-dollar milestone makes Micron only the second memory chipmaker to reach that valuation, joining Samsung.

The numbers behind the rally

Micron’s year-to-date stock performance tells a story of accelerating conviction. Depending on the measurement window, shares have gained anywhere from 40% to over 200%. The May 26 surge alone added roughly $160 billion in market value in a single trading session.

UBS pointed to structural demand drivers that extend well beyond the current quarter. Every major cloud provider, from Microsoft to Google to Amazon, is racing to build out AI data center capacity. Each of those facilities requires enormous quantities of HBM. And Micron, alongside SK Hynix and Samsung, is one of only three companies on the planet capable of manufacturing it at scale.

What this means for investors

There’s also an interesting crypto angle emerging. The tokenized version of Micron stock, known as MUON and created by Ondo Finance, has seen increasing on-chain buying pressure. This product allows investors to gain exposure to Micron shares directly on-chain. The rising demand for MUON suggests that crypto-native investors are actively seeking exposure to AI-linked assets without leaving the blockchain ecosystem.

The risk side of the equation is worth acknowledging too. Memory chips are a notoriously cyclical business. Micron has been through brutal downturns before, most recently in 2023 when oversupply cratered prices and the company posted consecutive quarterly losses. The current supply shortage could reverse if AI spending slows or if Samsung and SK Hynix ramp HBM production faster than expected.

Sold-out capacity through 2026 gives Micron a visibility window that most hardware companies can only dream of.