SanDisk's stock soars 4,050% post-spin-off, surpassing parent Western Digital's 1,077% gain.

SanDisk, spun off from Western Digital in early 2025, has seen its stock surge 4,050% in less than a year, outpacing Western Digital's 1,077% rally. This remarkable growth has made SanDisk's market value about $231 billion, exceeding Western Digital's $179 billion by over $50 billion. The surge reflects strong investor demand for memory and storage tied to AI infrastructure, positioning SanDisk as a high-leverage play on next-gen computing rather than a legacy storage firm. This shift challenges traditional spin-off expectations, with SanDisk becoming the dominant company in the relationship.