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 2026-09-19.
Pfizer Inc. · Healthcare
$27.64
+12.0% upside to fair value
Med Conviction
Grade B
VS
Western Digital Corporation · Technology
$441.36
-16.8% upside to fair value
Med Conviction
Grade C
QuantHub Verdict
PFE has more upside to fair value
(+12.0%).
These are model outputs — not personalized investment advice.
See all research →
Valuation & Fundamentals
| Metric |
PFE |
WDC |
| Current Price |
$27.64 |
$441.36 |
| Fair Value Estimate |
$30.94 |
$367.30 |
| Upside to Fair Value |
+12.0%
|
-16.8%
|
| Market Cap |
$157.5B |
$152.1B |
| Forward P/E |
—
|
—
|
| EV / EBITDA |
17.4x
|
17.4x
|
| Price / Sales |
2.5x
|
11.8x
|
| Price / FCF |
14.3x
|
47.3x
|
| Revenue Growth YoY |
+2.6%
|
+43.8%
|
| Gross Margin |
71.3%
|
48.9%
|
| Operating Margin |
25.1%
|
34.9%
|
| Return on Equity |
4.9%
|
118.6%
|
| Dividend Yield |
6.22% |
0.12% |
| FCF Yield |
6.97%
|
2.12%
|
| Analyst Consensus |
Hold
|
Strong Buy
|
Investment Thesis
Pfizer is a global biopharmaceutical leader with a portfolio spanning cardiovascular, oncology, vaccines, immunology, and rare disease, anchored by Eliquis, the Prevnar family, Vyndaqel, Ibrance, Xtandi, Comirnaty, and Paxlovid, and supported by roughly 75,000 employees and a contract manufacturing division. Business quality is medium rather than high: TTM gross margin of 71.3% and TTM operating …
Western Digital designs and manufactures hard disk drives and flash-based storage for data centers, client devices, and consumer markets, and it is currently enjoying an extraordinary demand surge tied to AI infrastructure buildouts. In the most recent quarter, revenue grew 43.8% year over year and earnings grew 1143.2% year over year, while trailing twelve-month gross margin reached 48.9%, opera…
Accumulation Zones
| Metric |
PFE |
WDC |
| Zone Low |
$23.21 |
$275.48 |
| Zone High |
$26.30 |
$312.20 |
| In Buy Zone? |
No
|
No
|