Micron beats Sandisk as better risk-adjusted AI memory buy

Both Micron and Sandisk have ridden the AI infrastructure trade to large rallies, yet neither looks expensive on headline earnings — Micron near 7 times forward earnings and Sandisk around 8.5 times. The article warns this is a familiar trap: memory stocks often look cheapest just as profits approach cyclical peaks, so the comparison tests which name offers better protection if today's shortage eventually fades.

Micron's case rests on breadth. It participates across DRAM, high-bandwidth memory and NAND, with Cloud Memory revenue of $13.77 billion at an 83% gross margin and Core Data Center revenue of $11.52 billion at 87%. It also generated $18.3 billion of adjusted free cash flow and ended the quarter with $30.2 billion of cash, investments and restricted cash. That mix gives it direct HBM exposure to accelerator growth plus conventional DRAM and NAND leverage to rising AI memory content.

Sandisk is a more concentrated NAND and storage bet. Its fiscal fourth-quarter revenue reached $8.97 billion, up 372% year over year, and datacenter revenue surged to $2.98 billion from $213 million, with GAAP gross margin at 84.6%. Long-term agreements cover roughly half of fiscal 2027 output and around two-thirds of fiscal 2028 production, offering some protection if spot pricing weakens. But NAND pricing has historically been brutal, and the stock is up roughly 537% year to date.

The verdict leans toward Micron for risk-adjusted returns, supported by its lower multiple, broader product mix and diversification. That conclusion hinges on whether NAND scarcity persists — if it does, Sandisk's concentrated upside could prove larger, but so could its downside if pricing normalizes. Micron's broader mix does not abolish memory cyclicality, and planned fabs arriving in 2027 and 2028 could shift supply dynamics.