TMO vs UNH: Which Is the Better Buy?
Side-by-side comparison of Thermo Fisher Scientific Inc. and UnitedHealth Group Incorporated — fair value, conviction, valuation metrics, and QuantHub research signals.
Updated 2026-06-20.
Thermo Fisher Scientific Inc. · Healthcare
$464.61
+7.2% upside to fair value
Grade A
High Quality
VS
UnitedHealth Group Incorporated · Healthcare
$400.96
+45.0% upside to fair value
Grade B
High Quality
QuantHub Verdict
UNH has more upside to fair value
(+45.0%).
TMO trades at a lower forward P/E
(25.2x).
These are model outputs — not personalized investment advice.
See all research →
Valuation & Fundamentals
| Metric |
TMO |
UNH |
| Current Price |
$464.61 |
$400.96 |
| Fair Value Estimate |
$498.27 |
$581.39 |
| Upside to Fair Value |
+7.2%
|
+45.0%
|
| Market Cap |
$172.7B |
$364.1B |
| Forward P/E |
25.2x
|
30.2x
|
| EV / EBITDA |
19.1x
|
18.0x
|
| Price / Sales |
3.8x
|
0.8x
|
| Price / FCF |
25.6x
|
18.5x
|
| Revenue Growth YoY |
+6.2%
|
+2.0%
|
| Gross Margin |
39.4%
|
18.8%
|
| Operating Margin |
17.8%
|
4.2%
|
| Return on Equity |
13.3%
|
12.4%
|
| Dividend Yield |
0% |
0% |
| FCF Yield |
3.91%
|
5.4%
|
| Analyst Consensus |
Strong Buy
|
Strong Buy
|
Investment Thesis
Thermo Fisher Scientific is a leading healthcare company specializing in life science tools, diagnostics, and contract research and manufacturing services. It operates with a broad, multi-layered moat driven by scale, integration, and a long-tenured management team. The company exhibits solid fundamentals with a 13.3% ROE, 6.2% revenue growth, and 9.6% earnings growth in the most recent quarter. …
UnitedHealth Group Incorporated operates as a diversified healthcare company with leading positions in healthcare plans through UnitedHealthcare and health services via Optum. The business quality is high due to its durable competitive advantages including scale, integration of Optum and UnitedHealthcare, strong data and distribution infrastructure, and incumbency in Medicare Advantage and care d…
Accumulation Zones
| Metric |
TMO |
UNH |
| Zone Low |
$373.70 |
$436.04 |
| Zone High |
$423.53 |
$494.18 |
| In Buy Zone? |
No
|
Yes
|