Micron Technology, Inc. (MU Quick QuoteMU - Free Report) closed fiscal 2026 on a powerful note, delivering record revenues, sharp margin expansion and strong cash generation. The company enters fiscal 2027 with favorable memory supply-demand trends, strong AI exposure and greater visibility from long-term customer agreements.

While the stock’s huge rally warrants some caution, its earnings outlook and attractive valuation continue to support a hold stance.

Micron’s Record Q4 Results Strengthen the Hold Case

Micron’s fourth-quarter fiscal 2026 results show how quickly its business has benefited from the AI-driven memory boom. Revenues jumped 379% year over year to $54.23 billion, marking the company’s sixth consecutive quarterly revenue record. Non-GAAP earnings per share (EPS) surged to $33.42 from $3.03 a year ago, while non-GAAP gross margin expanded to 87% from 45.7%. Operating cash flow reached nearly $44 billion in the fourth quarter and $89.68 billion in full fiscal 2026.

The growth was broad-based across the portfolio. DRAM revenues climbed 343% year over year to $39.8 billion, while NAND revenues soared 526% to $14.1 billion. The Core Data Center Business Unit was particularly impressive, with revenues reaching $18 billion, up from $1.58 billion in the year-ago quarter. Cloud Memory revenues increased 258% to $16.3 billion, Mobile and Client revenues surged 249% to $13.1 billion, and Automotive and Embedded revenues jumped 376% to $6.8 billion.

The outlook provides another reason to stay invested. Micron expects fiscal first-quarter 2027 revenues of $61.5 billion, plus or minus $1.5 billion, and non-GAAP EPS of $38.15, plus or minus $1. The top-and bottom-line forecasts indicate year-over-year growth of approximately 351% and 698%, respectively.

AI-Led Memory Demand Supports MU’s Long-Term Growth

AI is becoming a major structural growth driver for Micron. Advanced AI systems need much more memory capacity and bandwidth, supporting demand for high-bandwidth memory (HBM), advanced DRAM and high-performance data center SSDs.

The spending plans of major cloud companies add to this opportunity. Amazon, Microsoft, Alphabet and Meta Platforms are expected to invest nearly $745 billion in capital expenditures in 2026, with a large portion directed toward AI infrastructure. This spending matters for Micron because AI servers require substantially more memory than traditional servers. As AI workloads grow larger and more complex, memory required per server should continue to increase.

Micron’s HBM business is gaining momentum. HBM revenues grew faster than total company revenues in the fourth quarter, and MU has completed agreements for most of its 2027 HBM bit supply at significantly higher prices than the previous year. Micron is also progressing with its HBM4 ramp and is working with NVIDIA on a custom HBM4E solution.

NAND is emerging as another important AI opportunity. Data center SSD revenues approached $10 billion in the fourth quarter, more than 10 times the year-ago level. Growing AI workloads and applications such as KV-cache offload are expanding the market for high-performance storage.

Physical AI could provide another long-term opportunity. Micron expects autonomous vehicles and humanoid robots to require substantially more memory and storage than today’s systems, potentially making this an important demand driver later this decade.

SCAs Add Greater Revenue Visibility for Micron

Micron is also taking steps to make its business more predictable. The company has signed 26 Strategic Customer Agreements (SCAs), which it estimates will cover more than 35% of revenues through 2030. Customer financial commitments have increased to $32 billion, with most of the amount coming in the form of cash deposits.

These take-or-pay agreements give Micron better visibility into future demand and help it plan capacity. They also strengthen customer relationships and support long-term technology collaboration.

At the same time, Micron is expanding its manufacturing footprint across the United States, Singapore, Japan and Taiwan. Its ID1 fab is expected to begin wafer output in mid-2027, while its Singapore HBM packaging facility is expected to begin initial output in early 2027.

MU Stock Performance and Valuation

Micron shares have soared 272.8% year to date, significantly outperforming the Zacks Computer and Technology sector’s 24.2% gain. The stock has also outperformed several major semiconductor names, including Marvell Technology, Inc. (MRVL Quick QuoteMRVL - Free Report) , Advanced Micro Devices, Inc. (AMD Quick QuoteAMD - Free Report) and NVIDIA Corporation (NVDA Quick QuoteNVDA - Free Report) . YTD, shares of Marvell Technology, Advanced Micro Devices and NVIDIA have surged 219.2%, 195% and 28.6%, respectively.

Micron YTD Price Return Performance

Image Source: Zacks Investment Research

Such a sharp rally naturally raises concerns about profit-taking. However, valuation remains a major upside. MU currently trades at a forward 12-month price-to-earnings (P/E) multiple of 6.29, well below the technology sector average of 21.33. It is also cheaper than Advanced Micro Devices, Marvell Technology and NVIDIA, which trade at forward P/E multiples of 48.63, 45.77 and 17.67, respectively.

This low P/E multiple suggests that the stock is not excessively valued relative to its earnings potential.

Micron Forward 12-Month P/E Ratio

Image Source: Zacks Investment Research

Micron’s Rising CapEx Is a Key Risk to Watch

Micron’s biggest concern is the amount of capital needed to expand capacity. The company invested $27.37 billion in capital expenditures in fiscal 2026 and plans to increase spending further in fiscal 2027 as it expands cleanroom capacity to address expected demand. Management’s discussion during the last earnings call indicates that capital spending will be more than $50 billion in fiscal 2027.

This strategy makes sense, given the company’s view that DRAM and NAND markets will remain supply constrained through 2027 and 2028. However, new facilities take time to ramp up, and aggressive capacity additions could eventually create supply-demand imbalances if industry demand weakens.

PC and smartphone markets also remain areas to watch. Micron expects premium products and AI-enabled devices to support revenues, even as overall unit volumes could decline.

Conclusion: Hold Micron Stock for Now

Micron’s strong fourth-quarter results, robust fiscal 2027 outlook, growing HBM opportunity and rising data center SSD demand make a compelling case for staying invested. SCAs are also improving revenue visibility, while tight industry supply should support pricing in the near term.

The stock’s massive YTD gain means investors should be mindful of volatility and profit-taking. Still, the 6.29X forward P/E, strong balance sheet and powerful AI-driven growth outlook make the valuation attractive relative to the company’s earnings prospects. Investors who already own Micron stock should hold it for now.

Micron currently carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.