SNDK vs WDC: Which Is the Better Buy?
Side-by-side comparison of Sandisk Corporation and Western Digital Corporation — fair value, conviction, valuation metrics, and QuantHub research signals.
Updated 2026-08-06.
Sandisk Corporation · Technology
$1,350.50
+22.2% upside to fair value
Med Conviction
Grade B-
VS
Western Digital Corporation · Technology
$519.17
-28.7% upside to fair value
Med Conviction
Grade C+
QuantHub Verdict
SNDK has more upside to fair value
(+22.2%).
SNDK trades at a lower forward P/E
(6.6x).
These are model outputs — not personalized investment advice.
See all research →
Valuation & Fundamentals
| Metric |
SNDK |
WDC |
| Current Price |
$1,350.50 |
$519.17 |
| Fair Value Estimate |
$1,650.00 |
$370.00 |
| Upside to Fair Value |
+22.2%
|
-28.7%
|
| Market Cap |
$200.0B |
$178.9B |
| Forward P/E |
6.6x
|
27.8x
|
| EV / EBITDA |
25.0x
|
37.3x
|
| Price / Sales |
9.8x
|
13.9x
|
| Price / FCF |
17.3x
|
51.0x
|
| Revenue Growth YoY |
+174.0%
|
+35.7%
|
| Gross Margin |
71.5%
|
48.9%
|
| Operating Margin |
62.0%
|
34.9%
|
| Return on Equity |
44.0%
|
43.4%
|
| Dividend Yield |
0.0% |
0.1% |
| FCF Yield |
5.8%
|
2.0%
|
| Analyst Consensus |
Buy
|
Buy
|
Investment Thesis
SanDisk is a pure-play on NAND flash memory, spun out of Western Digital in February 2025, and has become one of the defining beneficiaries of the AI storage supercycle. An acute shortage of high-performance enterprise SSDs for AI training and inference has driven NAND pricing sharply higher, taking gross margin from under 30% in fiscal Q1 to roughly 85% in fiscal Q4 2026 and lifting the stock mo…
Western Digital is now a pure-play, duopoly hard-disk-drive manufacturer, having spun off its NAND flash business as SanDisk in February 2025 and sold its remaining SanDisk stake for $3.1 billion in February 2026. It is riding the same AI-storage supercycle as SanDisk and Micron, but from the mass-capacity nearline HDD side: hyperscalers are buying every high-capacity drive WDC can make for AI da…
Accumulation Zones
| Metric |
SNDK |
WDC |
| Zone Low |
$1,240.00 |
$278.00 |
| Zone High |
$1,400.00 |
$315.00 |
| In Buy Zone? |
Yes
|
No
|