What Caused SanDisk (SNDK) Stock to Jump 10% on Wednesday?

TLDR

• SanDisk shares surged approximately 11% on April 1, 2026, buoyed by a positive research note from Cantor Fitzgerald concerning Micron.
• Cantor designated Micron as a top investment choice with a $700 price target, contending that the threat posed by TurboQuant is exaggerated due to the Jevons paradox.
• The ongoing conflict in Iran is causing an energy shortage in South Korea, which could adversely affect Korean memory manufacturers.
• SanDisk revised its fiscal Q3 projections upwards, anticipating revenue and earnings to surpass Wall Street’s forecasts.
• Citi analyst Asiya Merchant also reaffirmed a favorable outlook for the stock.

(SeaPRwire) –   Memory sector stocks experienced a welcome recovery on April 1 following a challenging period. SanDisk (SNDK) saw its shares climb by roughly 11.3% to approximately $692.73 by midday, with Micron (MU) also gaining significantly at +11.4%.

Sandisk Corporation, SNDK

The primary driver for this surge was a bullish report from Cantor Fitzgerald on Micron, which positively impacted the broader memory industry.

The memory market had previously faced downward pressure after Alphabet unveiled its TurboQuant algorithm—a compression tool that theoretically could reduce storage needs and diminish demand for memory chips. This announcement severely impacted the sector in the days leading up to the rebound.

Cantor challenged this perspective. The firm argued that TurboQuant’s threat is not as significant as it appears, citing Jevons paradox: as efficiency increases, consumption often rises rather than falls. If Cantor’s analysis is correct, the sell-off triggered by TurboQuant might have been an overreaction.

Cantor reiterated its “top pick” rating for Micron, setting a $700 price target after a meeting with Micron’s management. This strong endorsement was sufficient to boost the entire sector.

However, SanDisk’s rise wasn’t solely due to sector-wide momentum. The company also increased its fiscal Q3 guidance, now projecting revenue and earnings considerably higher than analysts’ previous estimates. This represents a genuine fundamental catalyst, complementing the positive sector trend.

Citi analyst Asiya Merchant further supported the stock with a reiterated positive view, suggesting that earnings growth has further potential.

Geopolitical Advantage for SanDisk

Cantor also highlighted a geopolitical factor. The ongoing conflict in Iran is leading to an energy deficit in South Korea, which is increasing operational costs for Korean memory producers. This situation could provide SanDisk and Micron with a competitive advantage over major rivals such as SK Hynix and Samsung.

SanDisk’s manufacturing operations are located in Asian markets that depend on oil and natural gas from the Strait of Hormuz, indicating some exposure. Nevertheless, the overall assessment suggests that Korean competitors might be facing a more substantial headwind.

SanDisk became an independent entity after its spin-off from Western Digital in 2025. Since then, its stock has appreciated by approximately 168% year-to-date—a rally fueled by constrained NAND supply, demand for storage driven by AI, and increasing memory prices.

Factors Propelling the Memory Market

The NAND market continues to be constrained. The expansion of AI infrastructure is consuming significant storage capacity, and supply has not kept pace. This environment has positively impacted SanDisk’s margins and cash flow.

Investors are observing whether this upward revision in guidance indicates that SanDisk is capturing a larger share of the AI and data-center opportunities than the market had previously anticipated.

With the stock trading at $692.73 and a market capitalization of around $102 billion, SanDisk’s updated fiscal Q3 guidance and renewed analyst support are the most immediate contributors to today’s stock movement.