The S&P 500 is up almost 17% in 2025, with Sandisk (NASDAQ: SNDK) leading as the best-performing stock with a 570% increase. Sandisk, based in Silicon Valley, specializes in data storage devices using NAND flash technology. The company’s revenue rose 21% in the fiscal first quarter to $2.3 billion, exceeding analyst expectations. Despite a global chip shortage, Sandisk’s earnings of $1.22 per share doubled Wall Street estimates. While the stock soared 15% after the Nov. 6 earnings report, investors should note that Sandisk did not make the Motley Fool’s list of top 10 stocks for potential high returns.

Read more at Yahoo Finance: What’s the Best-Performing S&P 500 Stock in 2025?