SanDisk’s 600% surge tops S&P 500 after spin-off from WDC

SanDisk has soared nearly 600% since its 2024 spin-off from Western Digital (WDC), becoming the S&P 500 top performer. The rally is driven by booming AI-related NAND demand, tighter supply, and improving margins. Analysts say fundamentals have strengthened but caution that the stock rapid surge may be ahead of near-term earnings.