Why Is SANDISK CORP (SNDK) Stock Down Today?

SanDisk Corp (SNDK) shares fell 8.41% to $858.60 as investors reduced exposure to AI-linked hardware names following a major leadership change at NVIDIA Corp. The decline occurred against a backdrop of a softer broader market, with the stock giving back recent gains in the memory sector.

What Happened

The primary driver for the sell-off was a leadership shock at NVIDIA, the industry leader in AI chips, which spread through its supply chain. This event triggered a pullback in memory stocks, including SanDisk, Micron, and SK Hynix. While the broader market faced headwinds, the specific impact on SanDisk was amplified by its position as a NAND flash specialist tied to the AI hardware cycle.

The company recently executed an 8-for-1 stock split, with an ex-date of November 20, 2026. Despite the recent volatility, some analysts remain bullish. Evercore maintains a positive outlook despite the ongoing price swings. However, the memory chip business has a long history of boom and bust cycles, leading some investors to question the sustainability of current valuations when prices rise and manufacturers add capacity.

What The Data Shows

SanDisk shares opened at $942.63, a 0.6% gap up from the prior close of $937.46. The session high was $946.29 at 7:00 AM ET, while the low hit $853.13 at 10:20 AM ET. Volume stood at 4.6 million shares, which is 0.4 times the three-month daily average. The stock has a market cap of $139.1 billion and a P/E ratio of 7.5. Trailing twelve-month revenue increased by 272.4%, and the net margin stands at 67.0%.

Over the last eight sessions, the stock moved down 16.8%, falling from $1126.52 to $937.46. The 52-week range is $183.00 to $2354.39. On November 13, 2026, the stock printed four fresh 52-week highs and 20 fresh 52-week lows. Unusual options activity in the last 36 hours included four notable prints, with call premium of $11.6 million versus put premium of $6.1 million. The largest single print was $6.1 million. Insider filings show nine sells totaling $104,000 in the last 90 days, with the most recent sale by Shek Bernard on November 2, 2026.

What To Watch

Investors will monitor the broader reaction to the NVIDIA leadership change and its ripple effects on the memory supply chain. The upcoming earnings date is not specified in the current data, so attention will likely remain on the coverage breadth and how the stock stabilizes after the recent 8.41% decline.