SanDisk's Margin Leap to 84.6% Tests Whether Memory Chips Can Escape Their Boom-Bust DNA
Published on 09/23/2026 at 06:41 | Editorial boerse-global.de
SanDisk shares advanced 6.5% in the latest session to close at EUR 1,650.00, extending a rally that has turned a once-commoditized flash memory maker into one of the AI trade's more closely watched names. A separate reading put the gain at 7.1% to EUR 1,660.00. Either way, the move reflects a market recalibrating what the company is worth now that data centers, not digital cameras, drive its growth.
That repositioning rests on numbers that would have seemed implausible for a NAND producer a year ago. Data center revenue multiplied to roughly $5.2 billion in the past fiscal year, up from just $960 million the year before. Gross margin, meanwhile, vaulted to 84.6% in the fourth quarter from 26.4% in the prior-year period — a profitability profile more typical of a software house than a capital-hungry chipmaker.
Long-Term Contracts Reshape the Revenue Base
The structural change underpinning those figures is a shift in how SanDisk sells its output. The company has signed ten multi-year supply agreements with eight major customers, contracts that carry fixed minimum volumes and price floors. Together they guarantee a minimum contracted volume of $93.9 billion.
Rosenblatt Securities estimates that roughly half of fiscal 2027 production and nearly two-thirds of fiscal 2028 output are already committed under these arrangements. For a business long whipsawed by price wars, that is an unusual degree of visibility. Analyst Kevin Cassidy, who sees the AI-driven demand shift as a genuine paradigm change, has set a $2,400 price target on the stock.
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The technology behind the efficiency gains comes from SanDisk's partnership with Japan's Kioxia. Their shared BiCS8 and BiCS10 manufacturing platforms deliver higher bit density on silicon while requiring fewer layers than many rivals — a combination that lowers production costs. Internal testing cited by Cassidy shows inference systems using the company's solid-state drives consume 75% less energy than configurations built around pure working memory, with data throughput rising noticeably as well.
Price Momentum Adds Fuel
Near-term pricing is cooperating too. Susquehanna expects NAND prices to rise 60% sequentially in the current quarter, followed by a further 25% gain in the next. Management is targeting an adjusted gross margin of around 80% for future fiscal years, framing the transition as a move toward a more predictable business model.
Not everyone is convinced the good times hold. Margins above 80% invite capacity expansion from Samsung, SK Hynix and Micron — and memory industry history suggests that a supply glut eventually erodes peak pricing. Acer chief Jason Chen has pushed back on the severity of the shortage narrative, arguing that prices will begin falling by the second half of 2027 once new fabs come online, and that scarcity will be hard to sustain through the end of the decade.
That caution carries weight. Even with contractual floors providing a cushion, expectations are stretched. The stock sits 20% below its record high, and any pullback in the multi-billion-dollar spending plans of major cloud operators would hit the shares hard.
The strategic case still leans in SanDisk's favor: it is operationally strong and directly leveraged to AI data center buildouts. But the valuation now leaves little room for execution missteps. The real test of the new model — whether those contractual minimum prices hold through a market cooldown — has yet to arrive.
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