SanDisk Slips 7.2% as AI Spending Doubts and Chinese Competition Weigh on Memory Stocks

SanDisk shares closed at EUR 1,160.00 on Friday, down 7.2%, as a broad technology selloff swept through semiconductor and memory names. The retreat capped a punishing week that left the stock 18% lower over seven sessions and 44% below its 52-week high — a gap that lays bare how far investor sentiment has shifted from the AI-driven enthusiasm that once lifted the entire chip complex.

The pressure came from outside the company. Rising bond yields, persistent inflation worries and a firmer interest-rate backdrop all combined to sour the mood. Above all, though, it was mounting skepticism about the scale and durability of artificial-intelligence spending that drove the exodus, according to the Associated Press, which reported that semiconductor firms ranked among the biggest losers in the recent bout of market volatility. Market participants are increasingly weighing the hefty costs and future financing needs tied to building out AI capacity, questioning how long the enormous outlays for servers and data-center infrastructure can continue at this pace before they must start generating returns.

Memory-specific headwinds piled on. Investors took a dim view of growing competition from China, with Tuesday media reports pointing to advances by rival CXMT in memory-chip designs. Uncertainty over how long existing supply bottlenecks in memory components will persist added to the caution. When global competition intensifies just as the largest technology companies scrutinize their budgets more closely, memory-intensive business models inevitably come under strain.

Management's Bullish Case Meets a Skeptical Market

SanDisk's own messaging strikes a markedly different tone. In a company blog post, the group expressed firm optimism about the memory industry's prospects, projecting that the global flash-memory market will exceed $300 billion in 2026 and approach the $500 billion mark the following year. It cited the unabated buildout of data centers and technological advances in NAND memory as the driving forces.

That confidence from the executive suite is running headlong into wariness on Wall Street. While management points to fundamental growth drivers, investors are pricing in the uncertainties of the macroeconomic picture — and for now, fear of an investment pullback by the big tech companies carries more weight than future expansion opportunities. The upshot for the stock is a marked re-rating by the market.

Product Launch and Insider Filing Round Out the Picture

Away from the trading floor, SanDisk on Tuesday unveiled a new memory product. The so-called Guardian Series brings particularly durable memory cards designed for continuous recording to market, aimed squarely at automotive cameras and private surveillance systems. The line offers storage capacities of up to 512 gigabytes for these applications.

Corporate governance disclosures also drew attention. A mandatory filing on October 2, 2026 revealed an internal share transaction: Chief Legal Officer and Secretary Bernard Shek sold 600 shares. The trade was executed under a trading plan established on March 4, 2026, in accordance with the US Rule 10b5-1 provision.

October 29 looms as the real test

The next catalyst arrives on October 29, 2026, when SanDisk reports results for the first quarter of fiscal 2027, with a management conference call scheduled for 1:30 p.m. Pacific time. For market participants, the release serves as a decisive test: only once it becomes clear whether operating performance keeps pace with the leadership's optimistic expectations is calm likely to return to the trading floors. Until then, the sector remains in the grip of the macroeconomic debate — and the semiconductor industry, long a cyclical seismograph for risk appetite, will keep signaling just how deep this bout of caution runs.