Micron Stock Poised Before Q4 Earnings

Micron Technology approaches its Q4 FY2026 earnings on Sept. 30, 2026, facing a valuation test as a 512GB DDR5 RDIMM demonstration and planned capacity expansion support AI memory demand, while recent sector selling has increased near-term volatility.

Product Advances and Capacity Expansion Support Medium-Term Outlook

Micron announced on Sept. 15, 2026, that it demonstrated the world’s first 512GB DDR5 registered dual in-line memory module (RDIMM) for next-generation servers. The module, designed for AI, analytics, in-memory databases, and simulation workloads, runs at up to 9,200 mega-transfers per second (MT/s) and supports server configurations up to 12 terabytes of DDR5 memory in a 24-slot dual-socket system. Major CPU vendors are validating the design, and volume production is targeted for the second half of 2027.

The company is also accelerating production of high-bandwidth memory (HBM), a type of memory more efficient for AI workloads. Micron plans to increase HBM wafer output from about 40,000–50,000 wafers per month historically to approximately 100,000 wafers per month by the end of 2026. Industry reports and company materials describe HBM as currently in shortage, allowing suppliers to raise prices amid rising demand. Micron projects the HBM market will grow from about $35 billion in 2025 to roughly $100 billion by 2028.

Q4 Guidance, Valuation Debate, and Risks

Micron’s fiscal Q4 2026 earnings are scheduled for Sept. 30, with results due after the market close. The company’s guidance calls for approximately $50 billion in revenue, plus or minus $1 billion; a non-GAAP gross margin near 86.0%; non-GAAP operating expenses around $1.65 billion; and non-GAAP diluted earnings per share (EPS) near $31, plus or minus $1. Full-year capital spending is projected at about $27 billion, including roughly $10 billion in the quarter. Analyst consensus aligns closely, with revenue near $50.4 billion and EPS around $31.1. Some analysts expect Micron to exceed both top- and bottom-line consensus due to strong AI memory demand.

Micron has reportedly signed multiyear customer agreements covering about $22 billion in memory supply through 2030, with guaranteed floor prices. These contracts are cited as supporting revenue durability and reducing the traditional cyclicality of memory pricing. The combination of these agreements and capacity expansion underpins a bullish case that AI-driven demand and constrained HBM supply could extend the current earnings cycle.

The stock has experienced volatility. Around Sept. 14, it declined roughly 5–7% amid concerns of moderating AI spending, with an 8.5% drop over the prior month despite substantial year-to-date gains. Analysts and chart-based models suggest further upside will depend more on a valuation rerating than on earnings growth alone.

Valuation metrics vary widely, with forward price-to-earnings (P/E) ratios cited from about 6x to 12.4x depending on assumptions. An implied P/E based on current guidance is near 7.9x. A broker reiterated a Buy rating with a $1,600 price target, and a credit rating agency upgraded Micron’s long-term rating to BBB+ from BBB, reflecting increased confidence in AI-driven demand.

Downside risks remain significant. A pullback in AI capital spending or a sharp decline in HBM demand could prompt suppliers to shift capacity toward conventional DRAM, risking oversupply and price pressure. Some models indicate Micron could absorb a roughly 50% earnings reset from the current EPS run rate without returning to deep cyclical multiples, while a 75% reset would likely push valuation back toward historical commodity levels.

Investors will focus on the upcoming Q4 report for signs that AI-driven tightness in DRAM and HBM supply can sustain margins and cash flow to justify a higher valuation multiple.