SanDisk (SNDK) is one of the most explosive momentum names, growing 145% year-to-date (YTD) and an astounding 1,050% year-over-year. However, this rally is now being put to the test by a high-profile short call by Citron Research. The company argues that the NAND flash cycle can turn faster, which could reverse the trend.
Citron’s research argues the following:
“Memory is cyclical, not structural. While the rise of artificial intelligence and hyperscalar demand has driven up prices and margins, the historical record is clear: eventually supply runs out. And with Samsung now signaling its commitment to maintaining premium margins, the risk is that the industry is becoming more competitive sooner than investors expect.”
SanDisk Corporation is one of the leading providers of NAND flash memory and storage solutions. The company serves the data center, edge, and consumer markets. It is based in California and spun off from Western Digital (WDC). The company has a current market capitalization of approximately $93.8 billion.
The stock has traded between $27.89 and $725 in the past year. This shows the stock is very volatile. The current price is around $590, which is significantly higher than the broader S&P 500 Index ($SPX).
The stock is trading high. The current price is 103.31 times earnings and 27.67 times forward earnings. The price/sales ratio is 12.75, and the price/book ratio is 9.18. These values are high and indicate that investors are betting at a high margin. However, most of the prior earnings are favorable and indicate that investors expect earnings to grow rapidly.
The company is not profitable.
SanDisk reported a significant turnaround in its fiscal second quarter, which ended on January 2, 2026. In the most recent quarter, the company reported that revenue increased 61% compared to the same period last year, amounting to $3.025 billion. Meanwhile, non-GAAP diluted EPS increased significantly from $1.23 last year to $6.20 this year.
Non-GAAP gross margin also increased significantly, rising to 51.1% compared to 32.5% last year. The company also reported a strong increase in data center revenue, which rose 64% sequentially to $440 million due to increased demand for infrastructure products. In addition, the edge and consumer segments also reported strong growth.






