WDC vs SNDK
Western Digital and SanDisk compared on price, size, range and sentiment. Both are memory & storage names.
Prices as of 2026-08-06 13:23 UTC. Updates live in your browser.
Western Digital (WDC)
Supplies high-capacity hard drives for the bulk storage tier that sits beneath AI training data, following its separation from flash.
- Nearline drive pricing and capacity
- Cloud storage buildout
- Areal density roadmap
SanDisk (SNDK)
The flash memory business separated from Western Digital, supplying NAND for enterprise SSDs and consumer storage.
- NAND pricing cycle
- Enterprise SSD demand from AI workloads
- Fab capacity discipline
How to read this comparison
Neither column is a verdict. Market cap tells you size, not value. The sentiment score describes how a stock is currently behaving relative to its own history and its peer group — a high score often reflects a large recent move rather than an opportunity. Because these two compete in the same segment, relative strength is the more informative line: it strips out the move the whole group made.
Common questions
Is WDC or SNDK the bigger company?
SanDisk is larger, at $200.0B against $183.7B. Market caps update through the session.
What is the difference between WDC and SNDK?
Both sit in memory & storage. Western Digital: Supplies high-capacity hard drives for the bulk storage tier that sits beneath AI training data, following its separation from flash. SanDisk: The flash memory business separated from Western Digital, supplying NAND for enterprise SSDs and consumer storage.
Which has stronger sentiment, WDC or SNDK?
SNDK currently scores higher, 68 against 41. The score combines momentum, five-day trend, position in the 52-week range, participation, strength versus the group and coverage intensity. It describes behaviour, not value.