Shares of SanDisk Corporation retreated in early trading on Friday, March 20, 2026, declining approximately 4.4% to $738.50 by mid-morning ET. This pullback occurred despite a significant price target increase from Citi, which raised its target on the data-storage company to $875 from $750 the previous day. The move followed robust quarterly results from memory chipmaker Micron Technology, which bolstered the bullish narrative for AI-related storage demand but also intensified scrutiny over stretched valuations.
Sector-Wide Pressure Amid Strong Fundamentals
The sell-off was not isolated to SanDisk. The broader memory and storage sector faced pressure, with Micron shares falling roughly 2.4%, Western Digital dropping 5.4%, and Seagate declining 2.7%. This broad retreat came even as investors digested Micron's exceptionally strong fiscal second-quarter report, which included record revenue of $23.86 billion and adjusted earnings per share of about $19.15. The company also provided strong forward guidance, projecting fiscal third-quarter revenue around $33.5 billion, plus or minus $750 million.
However, market sentiment appeared to be tempered by Micron's announcement that it would increase its capital expenditure outlook for fiscal 2026 by $5 billion, bringing the total above $25 billion. This aggressive spending plan sparked concerns among some analysts that a rapid capacity build-out could eventually outpace demand, potentially leading to a cyclical downturn in memory pricing. Mike O'Rourke, chief market strategist at JonesTrading, noted to Reuters that such expansion adds weight to worries that the current supply shortage might not be permanent, risking a return to typical commodity-like price behavior for memory chips.
SanDisk's Meteoric Rise and Valuation Crossroads
The backdrop for SanDisk's decline is a staggering 1,200% surge in its stock price over the preceding 12 months, vastly outperforming the average analyst price target of approximately $570. This disconnect highlights the extreme optimism priced into shares, driven by the artificial intelligence boom. SanDisk, a manufacturer of NAND flash memory used in solid-state drives (SSDs), is a direct beneficiary of soaring demand from data centers building out AI infrastructure.
The company's own financials have provided fuel for this rally. In January, SanDisk reported fiscal second-quarter revenue jumped to $3.03 billion, with datacenter revenue surging 64% sequentially. Management projected fiscal third-quarter revenue would land between $4.4 billion and $4.8 billion. CEO David Goeckeler attributed the strength to accelerated enterprise SSD deployments and firmer demand trends, telling Reuters that demand for AI "inference"—where trained models process user requests—was driving major cloud providers to significantly increase purchases of flash storage.
Analyst Views and Market Read-Through
Citi analyst Asiya Merchant maintained a Buy rating on SanDisk, highlighting that Micron's quarterly performance easily exceeded Street expectations for both revenue and earnings per share. She also pointed out that Micron's NAND sales came in ahead of consensus, signaling sustained storage demand. The read-through from Micron's results supports the pricing and margin expansion narrative that has propelled SanDisk's stock.
Nevertheless, the valuation gap presents a clear risk. A recent analysis pegged SanDisk's fair value near $717, roughly in line with its current trading price, while a discounted cash-flow model suggested a much higher valuation, underscoring the stock's dependence on ambitious long-term projections holding true. The company's strategic supply agreement with Kioxia, extending through 2034, is seen as a key factor in securing its production pipeline, with Goeckeler noting that in the current environment, "customers prefer supply over price."
Broader Implications for the AI Trade
The simultaneous pressure on SanDisk, Micron, Western Digital, and Seagate suggests a moment of reckoning for the high-flying AI hardware sector. While Micron's CEO Sanjay Mehrotra pointed to "robust demand and limited supply" as drivers of record revenue, gross margin, earnings, and free cash flow, the market's reaction indicates a focus on the sustainability of these margins amid rising industry capital expenditure.
For SanDisk, the path forward hinges on whether AI-driven demand can continue to absorb new supply without pressuring prices. Should major cloud customers reduce their capital spending or if NAND flash prices plateau, the company's substantial valuation premium could rapidly diminish. The trading action on Friday reflects growing investor unease about these possibilities, even as the fundamental demand story from AI remains powerfully intact.
