Micron preferred over Sandisk for AI memory exposure despite rival’s superior 2026 returns
While Sandisk has outperformed peers with near six-fold gains, a new analysis from The Motley Fool argues that Micron’s lower multiples and broader business model offer a more robust long-term investment case.
A recent analysis by The Motley Fool has compared Micron Technology and Sandisk as primary investment vehicles for the artificial intelligence memory sector, concluding that Micron offers a more compelling case for the next three years despite Sandisk’s superior recent performance. The report, authored by Keith Speights, acknowledges that both companies are benefiting from intense demand for high-bandwidth memory and NAND flash driven by AI data centres, but argues that Micron’s fundamentals provide greater stability and value.
Sandisk has emerged as the standout performer in the S&P 500 for 2026, with shares rising close to six times their year-start value. This surge follows a roughly 3,900% increase since the company’s spin-off from Western Digital in February 2025. Sandisk CEO David Goeckeler described the company’s growth model as durable during the April 2026 earnings call, citing strong demand for NAND flash as the most cost-effective solution for large-scale AI inference. Wall Street sentiment remains bullish, with 18 of 23 analysts surveyed by S&P Global in August rating the stock as a buy or strong buy, implying over 50% upside to the consensus 12-month price target.
Micron Technology has also seen significant appreciation, with shares more than tripling in 2026. The company’s leadership anticipates that tight supply conditions will persist beyond calendar 2027 due to structural constraints and AI-driven demand across cloud, mobile, and automotive segments. CEO Sanjay Mehrotra highlighted that the company produces DRAM, high-bandwidth memory, and NAND chips, all of which are experiencing robust demand. Additionally, Mehrotra pointed to the emerging market for humanoid robots as a potential source of sustained, multi-decade memory demand.
Despite Sandisk’s impressive returns, the analysis favours Micron due to its diversified business model and larger scale. Micron is approximately five times larger than Sandisk and ranks as the world’s third-largest memory chip manufacturer by revenue. This diversification across multiple memory types and end markets is viewed as a buffer against potential slowdowns in any single segment, offering a more resilient investment profile compared to Sandisk’s narrower focus.
Valuation metrics further tilt the comparison in Micron’s favour. The Motley Fool notes that Micron trades at a forward earnings multiple of just 5.3 and a price-to-earnings-to-growth ratio of 0.12, based on five-year earnings growth projections. In contrast, Sandisk trades at below 19 times forward earnings. While both stocks are exposed to the risk of a significant slowdown in data centre demand, the analysis suggests that Micron’s attractive valuation and broader operational footprint make it the preferred choice for long-term investors seeking exposure to the AI memory boom.
