SanDisk stock flashes most overbought signal in history after 5,302% surge

SanDisk Corp shares have surged 5,302% since their 2025 spin-off from Western Digital Corp, making SNDK the most overbought equity in stock market history.

Mizuho raised its price target on SNDK to $2,200 from $1,825, while Bank of America lifted to $2,100 from $1,500, both citing AI-driven demand and a tight NAND supply-demand balance. Susquehanna holds the Street-high target at $2,000. Of the 22 analysts covering SNDK, 19 rate it a buy or better and three rate it a hold, according to data compiled by the firm.

SNDK traded near $1,989 on Friday, up 6% on the session, extending a year-to-date gain of 724% and a 12-month return of 4,638%. The stock's Q3 FY2026 results, reported April 30, showed earnings per share of $23.41 versus a $14.66 consensus and revenue of $5.95 billion, up 251% year over year. Data-center segment revenue jumped 645% to $1.47 billion. SanDisk guided Q4 FY2026 revenue to $7.75 billion to $8.25 billion and non-GAAP EPS of $30 to $33.

The bear case centers on valuation and insider activity. A director sold 579 shares near $1,503 in early May. The stock's 10-day put/call volume ratio of 1.19 at the ISE, CBOE, and PHLX ranks in the 92nd percentile, indicating options traders have grown more bearish than usual. The average 12-month price target of $1,466.20 sits 10.3% below Friday's close, suggesting further target hikes may be needed to sustain momentum.

SanDisk has locked in roughly $42 billion in multi-year supply contracts, CEO David Goeckeler said, calling the quarter "a fundamental inflection point" as the company shifts toward data-center customers. The next catalyst for SNDK is incoming NAND pricing data and the Q4 FY2026 earnings report, which will test whether guidance can keep pace with the stock's valuation.

This article is for informational purposes only and does not constitute investment advice.