Micron Technology and Sandisk have delivered exceptional returns this year, with Sandisk leading the S&P 500 by rising over 650% and Micron climbing nearly 300% to rank fourth. Despite these gains, analysts suggest both stocks remain attractive investments driven by sustained artificial intelligence demand, though Micron holds a strategic advantage due to its position in high-bandwidth memory.
Both companies manufacture NAND memory, which is used for long-term storage in devices such as solid-state drives. Micron additionally produces DRAM, a volatile memory type that allows computing units like graphics processing units to access information rapidly. While NAND products are generally interchangeable between manufacturers, the DRAM market is shifting due to the rise of high-bandwidth memory. Micron and Nvidia have agreed to develop custom HBM chips, a move that transitions Micron from a universal supplier to a direct partner for major clients. This distinction provides Micron with a competitive edge over Sandisk, which is not exposed to the DRAM segment.
The memory chip sector is currently experiencing a significant supply crunch. In its latest earnings announcement, Micron stated that supply tightness is expected to worsen in 2027 and 2028 compared to 2026. This outlook suggests continued revenue growth for both companies. During Micron's fourth quarter of fiscal year 2027, which ended on September 3, the company grew revenue at a 379% pace. Sandisk reported a slightly slower growth rate of 372% for the same period. Both figures represent an approximate fivefold increase in revenue year over year.
Valuation metrics further support the investment case for both firms. Market pricing currently reflects an assumption that artificial intelligence demand will decline in coming years, resulting in lower price-to-earnings ratios. However, Micron has disclosed that it has signed demand agreements through 2030, indicating that the current demand cycle is likely to persist longer than the market anticipates. If both stocks were to re-rate to approximately 20 times trailing earnings during their respective fiscal years, Micron's stock could more than triple, while Sandisk's could rise by about 150%. This potential upside, combined with its exposure to the custom HBM partnership with Nvidia, positions Micron as the preferred investment between the two.