SanDisk's AI Momentum Drives Record Revenue, But Stock Falls 8% on Conservative Outlook

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SanDisk reported record fiscal fourth-quarter revenue of $8.97 billion fueled by AI-driven demand for data storage, but shares fell 8% in after-hours trading as investors deemed the company's forward guidance too conservative. The company has signed $93.9 billion in long-term purchase agreements backed by $16.5 billion in financial guarantees, signaling a fundamental shift in how hyperscale customers are securing AI storage capacity.

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SanDisk Posts Record Quarter Powered by AI-Driven Demand for Data Storage

SanDisk delivered a record fiscal fourth-quarter performance with revenue reaching $8.97 billion, significantly surpassing Wall Street's expectations of $8.39 billion

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. The company reported adjusted earnings of $39.25 per share, comfortably beating analyst estimates of $34.45 per share

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. This AI-led demand surge represents a sharp increase from $1.9 billion in revenue during the same quarter a year earlier

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. The company's data center revenue more than doubled sequentially to $2.98 billion, underscoring how AI infrastructure has become the primary growth engine

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. Data centers now represent 38% of SanDisk's bit shipments, compared with roughly 12% one year earlier

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Long-Term Purchase Agreements Signal Strategic Shift in AI Storage Capacity

SanDisk has fundamentally transformed its business model by securing long-term contracts with hyperscale customers. The company now has eight agreements in place with six customers representing at least $93.9 billion in minimum expected revenue

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. These long-term purchase agreements carry a median duration of four years and are backed by $16.5 billion in financial guarantees—a clear indication that customers are making binding financial commitments years in advance rather than simply reserving future supply

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. According to David Goeckeler, SanDisk's CEO, the company has signed five additional agreements since April, bringing the total to ten contracts

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. These agreements are expected to account for roughly half of SanDisk's shipment volume in fiscal 2027 and about two-thirds in fiscal 2028

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High-Capacity Storage Needs Drive Data Center Revenue Growth

The surge in AI infrastructure development has created unprecedented high-capacity storage needs. Rising demand for NAND storage used in AI applications, combined with stronger NAND memory pricing and tight industry supply, helped lift profitability across SanDisk's enterprise solid-state drives portfolio

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. Generative AI's rapid growth has been boosting demand for flash memory chips, as data centers require more storage and computing capacity

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. Bank of America analyst Wamsi Mohan emphasized this transformation, calling SanDisk a "secular opportunity as AI inference makes NAND more indispensable"

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. As AI moves from occasional chatbot queries toward always-on agents and enterprise applications, enormous amounts of data must be stored and retrieved quickly, making storage part of the AI infrastructure itself

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Stock Drops Despite Beat as Guidance Falls Short of Elevated Expectations

Despite delivering better-than-expected quarterly results, SanDisk shares fell approximately 8% in after-hours trading

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. The company projected first-quarter revenue between $10.3 billion and $10.8 billion, with the midpoint exceeding LSEG analyst estimates of $10.47 billion

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. Quarterly revenue forecast for adjusted earnings came in at $44 to $46 per share, above consensus estimates of $43.12

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. However, investors appeared disappointed that the forward guidance was not strong enough to justify the stock's rich valuation following a nearly 470% rise in share price this year

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. The fiscal first-quarter outlook landed roughly 2.5% below some Wall Street expectations

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. BNP Paribas maintained a Neutral rating but lowered its price target to $1,400 from $1,900, citing peer multiple compression and concerns that gross margins may be nearing a peak

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Strategic Partnerships Elevate Customer Conversations Beyond Pricing

David Goeckeler revealed that discussions with customers have evolved dramatically, moving beyond procurement teams to now involve CEOs and CFOs of some of the world's largest companies as hyperscale AI infrastructure becomes a strategic priority

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. "This used to be, quite frankly, just a supply chain conversation every quarter in a price negotiation 7×24," Goeckeler said, adding that SanDisk is now playing a "highly strategic" role in helping customers build AI infrastructure

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. The company's largest customers have already returned to expand their multi-year agreements just one quarter after signing them, reinforcing confidence in long-term AI demand

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. "We spent a lot of time over the last 2 or 3 quarters really working very, very deeply with our largest customers on committing demand over. We have over 4 years of visibility now," Goeckeler added

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Analysts See Breaking the Commodity Cycle Through AI Inference

For decades, NAND flash behaved like a commodity, with manufacturers expanding capacity when prices were high, eventually leading to supply gluts and price collapses

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. Bank of America believes AI inference could break that pattern. Training creates the model, but inference is what happens every time users or software actually run it

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. Bank of America analyst Wamsi Mohan reiterated a Buy rating and $2,500 price objective, applying 10 times calendar 2027 earnings of $255, roughly in line with global memory peers

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. BNP Paribas estimates the long-term contracts are expected to generate approximately 80% margins at floor pricing, offering downside protection even if market conditions weaken

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. Management sees customer demand exceeding supply beyond calendar 2027, with fiscal 2027 sellable-bit growth reaching only the mid-teens because SanDisk plans to carry additional inventory to support its contractual commitments

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Share Repurchase Program and Future Outlook

SanDisk's board approved an additional $14 billion share repurchase program, bringing its total remaining buyback authorization to $15.5 billion

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. The company remains optimistic about the long-term outlook, expecting continued investment in AI infrastructure to drive demand for enterprise storage

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. Ongoing supply discipline in the memory market and growing adoption of AI technologies are expected to provide further support for growth in coming quarters

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. Bank of America forecasts fiscal 2027 earnings of $233.85, up 229%, and $27.4 billion of free cash flow

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. Watch for whether SanDisk can maintain pricing discipline as it scales production, how quickly the revenue mix continues shifting away from consumer markets toward data centers, and whether competitors can replicate this strategic partnership model with hyperscale customers.

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