SanDisk's Record Margins Spark a Wall Street Showdown Over Sustainability

A stock that has surged nearly 387% in a single year would typically leave little room for debate. Yet SanDisk finds itself at the center of an increasingly heated argument — not about whether the company is performing well, but about how long the good times can last.

The NAND-flash specialist delivered third-quarter results that stunned even seasoned semiconductor analysts. Revenue hit $6 billion, with earnings per share swinging from a year-ago loss to $23.41. The data center segment alone multiplied its sales. Gross margin clocked in at a jaw-dropping 78.4%, a figure that has prompted a flurry of price target upgrades — and a growing chorus of caution.

Wall Street's Bull Case Gets Bolder

Mizuho analyst Vijay Rakesh raised his price target from $1,220 to $1,625, maintaining an "Outperform" rating. His thesis hinges on "agentic AI" and complex inference workloads, which he argues will drive insatiable demand for storage capacity across data centers, PCs, and smartphones. The supply-demand imbalance in NAND is so pronounced, Rakesh contends, that pricing power will persist.

That view is shared by Susquehanna, which set the highest target on the Street at $2,000. The bank pointed to an unusual degree of visibility: roughly one-third of SanDisk's expected revenue for fiscal 2027 is already locked in under long-term contracts. For a market notorious for its cyclicality, that kind of forward planning is rare.

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Goldman Sachs lifted its target from $700 to $1,200, while Raymond James doubled its target to $1,470, citing long-term data center agreements fueled by AI demand. Bernstein joined the party with a $1,700 target. On TipRanks, 13 of 16 analysts rate the stock a Buy; none recommend selling.

The Bear Case: Margins Built on Sand?

But the very metric driving the euphoria — gross margin — is also fueling skepticism. The 78.4% figure did not come from selling more chips. In fact, the volume of data shipped fell by a double-digit percentage quarter over quarter. The margin expansion is entirely a function of pricing power and product mix, not unit growth.

That distinction matters because SanDisk's "New Business Model" contracts, totaling $42 billion in minimum value, contain variable pricing clauses. If competitors — particularly Chinese manufacturer YMTC — ramp up capacity and flood the spot market, those clauses could compress margins significantly, potentially as early as 2027.

Bears argue the current margin profile is a temporary artifact of industry-wide investment restraint and a spike in AI-related demand, not a structural shift. They warn that the stock's RSI of nearly 80 and a price more than 58% above its 50-day moving average scream overbought. The stock's recent 8% pullback from an all-time high to around $1,300 suggests some investors are already hedging their bets.

Supply Constraints: The Bull's Trump Card

The bulls, however, have a powerful counterargument: NAND capacity is effectively sold out through 2026. Gartner projects a 234% price increase for NAND-flash this year, with supply constraints expected to persist until 2028. Hyperscalers are already locking in long-term capacity, and SanDisk's fourth-quarter guidance calls for gross margin between 78.9% and 80.9% — up from 26.2% in the year-ago period.

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The company is targeting roughly $8 billion in revenue for the current quarter. Management recently signed new long-term partnerships worth a minimum of $42 billion, providing a cushion against short-term volatility.

The Verdict Hinges on One Variable

For now, the market is betting that SanDisk's margin quality will hold. The stock closed Thursday near $1,340, giving it a year-to-date gain of nearly 387%. But the debate is narrowing to a single question: Will YMTC and other competitors ramp up production slowly enough for SanDisk to lock in profits on its existing contracts?

The next quarterly report will offer the first real test. If the variable pricing clauses in those NBM contracts hold steady, the bulls win. If they start to bite, the bears will have their day. Either way, SanDisk has become the most watched stock in the memory-chip space — and the most contested.

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