Micron's $1B AI Memory Moment

Micron's HBM revenue exceeded $1 billion in Q2 FY25, growing over 50% QoQ, with its 2025 supply fully sold out, prompting the company to raise its 2025 HBM TAM estimate to over $35 billion. The company's HBM3E chips, offering superior power efficiency and capacity, have secured Nvidia design wins, leading to a projected FY2026 EPS of $10.96. Despite NAND weakness, HBM-driven margin expansion could significantly increase Micron's EV/EBITDA, suggesting substantial undervaluation compared to the semiconductor sector.

Analysis

Micron Technology has demonstrated significant momentum in its High-Bandwidth Memory (HBM) segment, with revenue surpassing $1 billion in Q2 FY25, reflecting a quarter-over-quarter growth exceeding 50%. This robust performance has led to the entirety of its 2025 HBM supply being sold out and prompted an upward revision of the 2025 HBM Total Addressable Market (TAM) estimate to over $35 billion, fueled by accelerating deployments of AI servers. Micron's HBM3E chips are competitively positioned, offering 30% superior power efficiency and 50% greater capacity compared to rivals, which has resulted in design wins with Nvidia. The company's projected FY2026 earnings per share (EPS) of $10.96 implies a forward Price-to-Earnings (P/E) ratio of merely 8.6x, substantially below the semiconductor sector median of approximately 21x. Despite prevailing weakness in the NAND market, the strong HBM-driven margin expansion is anticipated to potentially elevate Micron's Enterprise Value to EBITDA (EV/EBITDA) multiple from 6.5x to 10x, indicating a potential undervaluation of around 40%.

Key Decisions for Investors

• Investors should consider Micron's robust HBM growth trajectory and sold-out 2025 supply as strong indicators of its leadership in a critical AI-driven market segment.
• The substantial discount in Micron's forward P/E ratio compared to semiconductor peers, coupled with the potential for significant EV/EBITDA expansion, suggests a potentially undervalued investment opportunity.
• Monitor Micron's ability to maintain its technological edge in HBM and execute on its capacity expansion plans, as these are crucial for realizing the projected earnings growth and addressing the strong market demand.
• While NAND market conditions remain a factor, the outperformance and margin contribution from the HBM business are key catalysts that could lead to a re-rating of the stock.