Micron: HBM Is A Money Printing Machine

Micron Technology reported strong Q4 FY25 earnings, with combined HBM, high-capacity DIMMs, and LP server DRAM revenue reaching $10B, a fivefold increase from FY24, driving nearly 50% FY revenue growth due to surging AI infrastructure demand. The company, holding 21% of the HBM market, saw DRAM ASPs rise 12% sequentially and gross margins expand 670 basis points to 45.7%, with further expansion and Q1 FY26 sales above consensus projected. Management plans substantial CapEx for HBM and 1γ DRAM expansion, while an emerging catalyst in booming AI custom ASIC demand is expected to significantly increase HBM adoption by 2026, further solidifying Micron's positive outlook and attractive valuation amidst tight supply and favorable pricing dynamics.

Analysis

Micron Technology's Q4 FY25 earnings report solidifies its position as a primary beneficiary of the artificial intelligence infrastructure boom, driven by strong demand for its High-Bandwidth Memory (HBM) solutions. The company reported a fivefold year-over-year increase in combined revenue from HBM and related server DRAM products to $10 billion, which propelled full-year revenue growth to nearly 50%. This top-line momentum is directly translating to improved profitability, evidenced by a 12% sequential increase in DRAM Average Selling Prices (ASPs) and a 670 basis point expansion in gross margins to 45.7%. Management's guidance reinforces this bullish outlook, projecting revenues of $12.2B-$12.8B for the next quarter—exceeding the $11.8B consensus—and forecasting further margin expansion to 51.5%. The supply environment remains highly favorable, with lean inventories and demand expected to outpace supply into 2026. While competitive pressure from players like Samsung exists, the expanding Total Addressable Market for HBM and Micron's planned 30% CapEx increase to $18B in FY26 for capacity expansion position it well. A significant, and potentially underappreciated, future catalyst is the expected surge in AI custom ASIC demand, which is forecast to drive an 82% increase in its HBM consumption in 2026. Despite the stock's 58% recovery from its intra-quarter low, its valuation remains compelling, trading at a forward P/E of 10.69x and a forward EV/EBITDA of 7.16x, representing discounts of 58% and 54% to the sector median, respectively. This suggests the market may not have fully priced in the longevity and magnitude of its AI-driven earnings power.

Key Decisions for Investors

• Given the strong earnings, robust forward guidance, and sustained HBM-driven demand from the AI sector, investors should view the current stock momentum as fundamentally supported rather than speculative.
• Monitor the adoption rate of HBM in the AI custom ASIC market, as the forecasted 82% growth in 2026 represents a significant secondary growth catalyst not yet fully reflected in the current share price.
• Despite the stock's run-up to all-time highs, consider that valuation metrics like forward P/E and EV/EBITDA remain at a significant discount to peers, suggesting potential for further re-rating as Micron solidifies its status as a core AI play.
• While the market outlook is strong, it is prudent to track competitive advancements from SK hynix and Samsung in the HBM space, as shifts in market share could impact future pricing power and profitability, even within an expanding market.