Shares of Sandisk surged sharply after the company reported a fiscal third-quarter jump in revenue, underscoring how a tight supply backdrop for NAND flash—fueled by demand from artificial intelligence data centers—has pushed pricing and profitability higher. The stock’s rally also picked up momentum after memory peer Micron Technology reported strong quarterly results earlier this week, reviving investor focus on the AI memory supply chain.
Sandisk, which was spun out of Western Digital in early 2025, said its data center business accelerated further and that new multi-year supply agreements are intended to reduce earnings volatility as customers lock in capacity and pricing.
Key takeaways
- Price move: Sandisk shares rose strongly on the day the results were digested by the market.
- Catalyst: Fiscal third-quarter revenue growth and a continued NAND flash pricing upcycle driven by supply constraints for AI data centers.
- Margins and demand: Adjusted gross margin expanded materially alongside a surge in data center revenue.
- Balance of risk and durability: Multi-year supply deals with committed volumes and pricing aim to make earnings less cyclical.
- Implication for investors: Even with contractual support, the memory industry remains exposed to future supply additions that can pressure pricing.
What drove the surge
Sandisk’s results landed against a broader market backdrop of NAND flash tightness. Data center demand for high-capacity flash storage—needed to support AI inference workloads—has collided with constrained supply, pushing NAND flash prices higher. Investors had fresh confirmation of this dynamic after Micron Technology reported record quarterly revenue and strong NAND performance earlier in the week.
In its fiscal third quarter of 2026, the period ended April 3, 2026, Sandisk reported revenue of $5.95 billion, up 251% year over year and up 97% sequentially. The company also highlighted that its data center revenue—now its fastest-growing segment—rose 233% sequentially to about $1.5 billion.
Pricing strength translated into profitability as well. Sandisk said adjusted gross margin rose to 78.4%, a notable level for a business historically known for more pronounced boom-and-bust cycles.
In management commentary on the earnings call, Sandisk’s chief executive David Goeckeler said NAND flash is emerging as the economically viable solution to deliver the capacity, performance, and efficiency required to keep models accessible for real-time inference at scale.
How new contracts are meant to change the cycle
Beyond current-quarter performance, Sandisk emphasized measures aimed at smoothing earnings over time. The company said it has signed five multi-year supply agreements—its “new business model”—that set committed volumes for customers and committed pricing for Sandisk. Management further stated the arrangements are backed by more than $11 billion in financial guarantees.
Sandisk also said these agreements already cover more than a third of planned output for fiscal 2027, framing them as a mechanism to support structurally higher earnings and reduce cyclicality compared with prior periods.
The company’s investor message is clear: the industry’s current tightness may be a catalyst for record results, but long-term valuation depends on whether demand durability and contractual terms can hold pricing power even as suppliers adjust.
Market reaction and what investors will watch
The stock’s move reflects how quickly investors can reprice memory equities when supply tightness appears to be translating into both revenue growth and sustained margin expansion. The linkage to AI infrastructure spending is also central to the market’s interpretation: stronger data center revenue and margin expansion suggest NAND demand is not merely cyclical, but tied to workload requirements from inference at scale.
However, investors are also likely to be mindful that memory remains an industry where supply changes can quickly alter economics. Even with multi-year contracts, pricing can be pressured if new capacity enters and supply constraints ease. That means the market will likely look for evidence that the AI-driven shortage persists—and that Sandisk’s contractual commitments translate into continued financial performance rather than a one-time spike.
Bigger picture for memory and AI infrastructure
Sandisk’s update fits into a broader theme playing out across semiconductors: companies tied to compute and storage for AI workflows are seeing demand intensity pull forward near-term results. Micron’s strong performance earlier this week reinforced that investors are currently rewarding the segments showing the clearest alignment between AI capex and constrained supply.
For Sandisk, the central question going forward is whether the current pricing environment can extend beyond the period covered by today’s tight supply—and whether the new supply agreements deliver the less cyclical earnings profile management is targeting.
Investors may watch next for additional quarterly results that confirm sustained data center revenue growth and margin resilience, along with any updates on how quickly contract-backed output ramps in fiscal 2027. Continued commentary from peers on NAND pricing and supply additions will also be key to judging whether the AI memory shortage remains intact.
