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May 11, 2026 4:00 PM

SanDisk's 4,000% Moonshot Just Made Its Parent The Underdog

SanDisk's (NASDAQ:SNDK) post-spin rally has turned one of 2025's cleaner separation stories into a market-cap upset.

SNDK stock is still going up. See the chart and price action here. 

Western Digital Corp. (NASDAQ:WDC) spun off SanDisk in early 2025, with SanDisk shares debuting in February 2025 under the SNDK ticker. 

Less than a year later, the child company has not only outperformed its former parent, it has overtaken it.

SanDisk Blows Past Western Digital

Over the past 12 months, SanDisk stock has surged 4,050%, dwarfing Western Digital's own 1,077% rally.

That kind of move would be extraordinary in any corner of the market, but it is especially striking given the relationship between the two companies. 

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