NEW YORK — SanDisk has been its own company for six months, and the market is still not entirely sure what to make of it. Shares fell 94 cents to $58.34 on Tuesday, a 1.6% decline that left the stock near the middle of its short post-spinoff trading range, as investors in the newly independent flash memory producer weighed a business model that is cyclically sensitive, capital-intensive, and currently recovering from one of the worst NAND oversupply cycles in a decade.
Western Digital completed the separation of SanDisk Corporation on February 14, 2026, distributing one SNDK share for every two WDC shares held. The decision to split the company followed years of pressure from activist investors who argued that flash memory and hard disk drives were fundamentally different businesses that attracted different investor bases, and that the combined company’s valuation suffered from the confusion. The split has validated part of that thesis — WDC shares have risen approximately 18% since the separation — while SNDK has navigated a more complex path.
SanDisk is the world’s second-largest NAND flash producer by volume, behind Samsung Electronics and slightly ahead of SK Hynix. Its primary manufacturing base is Yokkaichi, Japan, where it operates a joint venture with Kioxia called WD-Kioxia Flash Forward that provides approximately 48% of its total NAND wafer supply. The joint venture is the most important structural fact in the SanDisk investment case: it provides manufacturing scale that SanDisk could not economically achieve alone, at the cost of flexibility and control.
NAND pricing has been the variable that has mattered most to SanDisk’s earnings profile since the spinoff. After falling more than 60% from peak to trough between mid-2022 and early 2024, NAND spot prices have recovered approximately 28% from the cycle bottom, according to TrendForce data. The recovery has been driven by improving demand from smartphones, PCs, and data center solid-state drives, combined with supply curtailments that Samsung and other producers implemented in 2023 to prevent further price deterioration.
SanDisk’s most recent standalone earnings report — for the quarter ended June 28, 2026 — showed revenue of $4.1 billion, up 34% year-over-year. That growth rate is an artifact of the NAND price recovery rather than unit share gains. Operating income was $287 million, compared with an operating loss of $612 million in the same period of 2025. The turnaround is real. Its sustainability depends on whether NAND pricing continues to recover or stagnates.
The AI angle for SanDisk is less direct than for Micron’s HBM business, but it exists. Data center NVMe solid-state drives — high-performance storage used in AI inference servers — carry significantly higher margins than consumer-grade storage. SanDisk’s enterprise SSD business grew 67% year-over-year in the most recent quarter, driven by hyperscaler purchases for AI inference deployments. The segment now accounts for approximately 23% of total revenue, up from 15% two years ago.
Micron’s stronger performance Tuesday contrasted with SanDisk’s decline and illustrates the market’s current preference for DRAM and HBM over NAND within the memory sector. HBM3E for AI GPU applications is a supply-constrained, contract-priced business with stable margins. NAND is still primarily a spot-market business recovering from oversupply. The hierarchy in investor preference is not irrational.
At $58.34, SanDisk trades at approximately 22 times calendar year 2027 earnings consensus — a discount to Micron’s 14 times trailing multiple, which itself carries a cyclicality discount versus traditional tech stocks. The SanDisk multiple reflects higher uncertainty: the Kioxia joint venture limits strategic flexibility, the NAND recovery pace is uncertain, and the company has six months of standalone operating history on which to base independent assessments.
What the market is watching: Kioxia’s planned initial public offering on the Tokyo Stock Exchange, expected in late 2026, will provide an independent valuation reference for one of SanDisk’s primary manufacturing partners. If Kioxia prices at a level that implies higher joint venture asset value than SanDisk’s current market capitalization implies, there is a rerating argument. If Kioxia prices poorly, it signals that the market believes NAND recovery has further to go before the sector returns to full value.
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