Shares of SanDisk surged +4.5% to $752.96 on March 18, capping a five-day sprint of +21.7% from $618.82, as the company formalized multi-year NAND flash supply contracts with major cloud and AI customers through 2028. The deals transform SanDisk from a commodity chipmaker selling quarter-to-quarter into something closer to a utility with contracted revenue—a distinction worth billions if the AI storage boom holds.

  • The Old Way of Selling Memory Chips Is Dying. CEO David Goeckeler has said SanDisk plans to move away from the traditional quarterly pricing model in favor of long-term multi-year contracts that ensure predictable demand at attractive pricing.

CFO Luis Visoso added the company will use a mix of fixed and variable pricing designed to perform well in both up and down markets. For shareholders, this matters because it smooths out the wild profit swings that have historically plagued memory stocks—though it also means SanDisk may leave money on the table if spot prices keep climbing.

  • Factories Are Full, and Customers Are Desperate. Industry reports indicate global NAND manufacturing capacity for the remainder of 2026 is effectively spoken for; hyperscale customers are no longer negotiating on price but on assurance of supply.

Demand is so far ahead of output that management is making strategic allocation decisions about which customers to prioritize. That kind of seller's market is what's driving the 61% revenue jump and guidance for Q3 revenue of $4.4–$4.8 billion— with adjusted earnings per share of $12–$14 and gross margins of 65%–67%, both more than double analyst expectations.

  • Data Centers Are Becoming SanDisk's Main Customer, Fast. Goeckeler said data centers will become the largest NAND end market by 2026, with growth expectations rising from the mid-20% range to mid-to-high 60% over two forecast cycles.

Yet data center revenue was only $440 million last quarter versus $2.6 billion from consumer and device segments —meaning the highest-margin business is still ramping.

  • The Big Risk Nobody Wants to Talk About. Locking in a handful of giant buyers concentrates risk; competitors Micron, Samsung, and SK Hynix are pushing ahead in advanced NAND and high-bandwidth memory.

Semiconductor sales tend to be cyclical, and at some point the market will probably afford SanDisk a much lower stock price as investors anticipate a shift from shortage to oversupply. With the stock up ~132% year-to-date, the margin for error is razor-thin.