Sandisk Corporation has announced plans for a secondary public offering. The data storage company will open up 5,821,135 common stock shares (Nasdaq:SNDK) at $545 a pop. The shares are currently owned by Western Digital Corporation (WDC), Sandisk's former parent company. Sandisk separated from WDC nearly a year ago to the date, and subsequently joined the S&P 500 in November. Now, WDC is furthering that split.
In 2025, the three biggest stock gainers in the S&P 500 were Micron ( NASDAQ:MU) with around 250%, Western Digital ( NASDAQ:WDC) with almost 300%, and Sandisk ( NASDAQ:SNDK) with nearly 600%. To be more precise, SNDK stock gained approximately 580% last year, which is astounding no matter how you slice it. And in case you didn't see the connection, the three top performers are all involved in the market for memory-storage hardware.