How Has Micron’s Story Changed?

Micron Technology (MU) stock is priced at 9 times its fiscal 2026 sales, against 3.0 for the S&P 500. Shareholders paying that price need to know what they are buying, and Micron’s priorities have changed. In December 2024, on its fiscal Q1 2025 call, management was explaining near-term issues and an impact it said was mostly limited to its consumer-oriented segments. Now it leads with something else. So what is it?

Management Now Stresses AI Demand And Supply Contracts

On its fiscal Q4 2026 call, held September 30, 2026, management led with the strength of demand. It said industry demand had strengthened since its last call, and that memory’s role in AI gives Micron more opportunity to stand out than at any time in its history. Management also said its multi-year agreements with customers sharpen its long-term supply planning.

The fiscal Q1 2025 call sounded different. Management spoke then of near-term issues tied to the market environment, seasonality, and NAND-related challenges. On the post-earnings analyst call that day, it said “most of the impact is limited to consumer-oriented segments.” The Mobile and Client Business Unit, the reported unit that looks closest to those consumer segments, was Micron’s largest in fiscal 2024, with $11.7 billion of revenue.

How Do Micron’s Units Compare Now?

In fiscal 2025, the Cloud Memory Business Unit overtook the mobile and client unit. Its revenue rose 256.6% to $13.5 billion, or 36% of Micron’s revenue, ahead of the 32% from mobile and client.

The gap has widened since. In fiscal Q4 2026, Micron’s two data center units together supplied 63% of revenue: $18.0 billion from the Core Data Center Business Unit and $16.3 billion from Cloud Memory. Mobile and client supplied $13.1 billion, or 24%.

Micron as a whole is much larger now. In fiscal 2026, its revenue was $133.2 billion, against $37.4 billion a year earlier.

The mobile and client unit has grown too. Its fiscal Q4 2026 revenue was about three and a half times the $3.8 billion of a year earlier. But in the latest quarter it did not grow by selling more memory. Management said on that quarter’s call that the unit shipped less memory than in the quarter before. Its revenue still rose, and management put that down to higher prices.

Is Micron’s Shift Reassuring For Shareholders?

Mostly, yes. The mobile and client unit supplied 24% of revenue in fiscal Q4 2026, down from 32% in fiscal 2025, so the issues management once explained may matter less to you now. Management said on the fiscal Q4 2026 call that more than 75% of its 2027 output is already committed. It also expects the memory market to stay tight through 2028.

The open point is the mobile and client unit, which shipped less memory in fiscal Q4 2026 than in the quarter before. Micron’s guidance for fiscal Q1 2027 assumes it ships a single-digit percentage more memory than it did in fiscal Q4 2026. It is not yet known whether the mobile and client unit will share in that growth.

You can check this on the fiscal Q1 2027 call. Micron held its fiscal Q1 call in mid-December in each of the past two years. Higher shipments at the mobile and client unit on that call would show its customers buying more memory, and not only paying more for it.

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