The memory giant SanDisk (NASDAQ: SNDK) has been on a relentless rally since getting spun off from Western Digital (NASDAQ: WDC) in early 2025 and is among the top-performing stocks in the last 12 months.
Specifically, SNDK shares were changing hands at $45.22 on Monday, July 7, 2025, and, at press time in the pre-market of July 6, 2026, they are trading at $1,810.88 for a total 3,904.6% rise.
Given the 12-month upsurge, a $1,000 investment made last summer would have resulted in a $39,046 profit and a position worth as much as $40,046.
For comparison, a purchase of the same size made in a fund tracking the S&P 500 benchmark index would have grown to $1,201, and an equal-value purchase of Nvidia (NASDAQ: NVDA) stock – one of the best-performing major equities of the decade – would have risen to $1234.20.
Why SanDisk stock has rallied massively
Meanwhile, SanDisk shares owe their rally to a shift in focus in the ongoing artificial intelligence (AI) boom. Specifically, after the market dominance of the semiconductor industry waned, investor focus shifted to another critical hardware segment for data centers – memory.
Thus, the move enabled multiple RAM and storage firms to enjoy remarkable rallies, and, along with SNDK, Western Digital soared 765.16% in the last year, and Micron (NASDAQ: MU) rocketed 736.96%.
SanDisk stock drops 25% from June highs
Still, the dependence on the AI boom has also presented a risk to SanDisk stock by early July 2026 as changes in pricing led to a debate on the balance between costs and benefits of the technology, and Meta Platforms’ (NASDAQ: META) reported decision to rent out capacity altered the balance between supply and demand.
The shift led to SNDK shares losing approximately 25% of their value relative to their June highs of over $2335, though the firm remains up more than 6% in the monthly chart.
Featured image via Shutterstock
