PFE vs WDC: Which Is the Better Buy?
Side-by-side comparison of Pfizer Inc. and Western Digital Corporation — fair value, conviction, valuation metrics, and QuantHub research signals.
Updated 2026-08-06.
Pfizer Inc. · Healthcare
$25.22
+2.8% upside to fair value
Grade B
VS
Western Digital Corporation · Technology
$519.17
-28.7% upside to fair value
Med Conviction
Grade C+
QuantHub Verdict
PFE has more upside to fair value
(+2.8%).
PFE trades at a lower forward P/E
(19.2x).
These are model outputs — not personalized investment advice.
See all research →
Valuation & Fundamentals
| Metric |
PFE |
WDC |
| Current Price |
$25.22 |
$519.17 |
| Fair Value Estimate |
$25.92 |
$370.00 |
| Upside to Fair Value |
+2.8%
|
-28.7%
|
| Market Cap |
$143.7B |
$178.9B |
| Forward P/E |
19.2x
|
27.8x
|
| EV / EBITDA |
12.3x
|
37.3x
|
| Price / Sales |
2.3x
|
13.9x
|
| Price / FCF |
15.2x
|
51.0x
|
| Revenue Growth YoY |
+5.4%
|
+35.7%
|
| Gross Margin |
69.3%
|
48.9%
|
| Operating Margin |
23.4%
|
34.9%
|
| Return on Equity |
8.4%
|
43.4%
|
| Dividend Yield |
0% |
0.1% |
| FCF Yield |
6.6%
|
2.0%
|
| Analyst Consensus |
Hold
|
Buy
|
Investment Thesis
Pfizer Inc. is a leading global biopharmaceutical company with a diversified portfolio dominated by its Biopharma prescription segment, which accounts for over 90% of revenue. The company benefits from a substantial scale, a broad product portfolio including top-selling drugs like Eliquis, Prevnar, and Paxlovid, and a strong manufacturing footprint. However, Pfizer faces challenges from declining…
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 |
PFE |
WDC |
| Zone Low |
$19.44 |
$278.00 |
| Zone High |
$22.03 |
$315.00 |
| In Buy Zone? |
No
|
No
|