The Eighty-One Percent Question

Micron just posted a monster three-month run, but the real story is a single number that has Wall Street wondering if the old rules still apply.

If you owned Micron Technology (MU) over the last three months, congratulations. You’ve watched the stock climb a dizzying +133.4%, crushing its peers WDC and INTC, and leaving the S&P 500’s respectable +10.0% gain in the dust. But what exactly lit the fuse on this rocket?

The entire story hinges on a single conference call back on March 18. The company reported fiscal second-quarter revenue was up 196% year over year, a staggering figure on its own. But that was history. The market re-rated the stock based on the future Micron painted and one number in particular.

A Margin of Disbelief

For its next quarter, management guided to a gross margin of approximately 81%. In the notoriously cyclical world of memory chips, that figure is almost unheard of. As one analyst on the call noted, in prior historical peaks, Micron’s margins topped out in the “low sixties.” This isn’t just breaking a record; it’s playing a different sport.

The company’s current net margin is 41.5%, already miles above its three-year average of 5.1%.

Management credits the insatiable AI demand for driving this new reality. They argue that memory is no longer a simple commodity but a strategic asset for building artificial intelligence. To prove the point, they announced the signing of their “first five-year SCA,” or strategic customer agreement, an attempt to lock in this demand and smooth out the brutal industry cycles of the past.

Building for a New World?

Of course, Micron is spending furiously to meet this moment. The company expects capital expenditures to be above $25 billion for fiscal 2026, a massive bet that this demand is here to stay. That’s the bet you’re making now, too.

It all leaves you with the one question that matters more than any other. Are these new long-term deals strong enough to finally break the memory industry’s boom-and-bust rhythm?

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