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 2026-09-18.
Thermo Fisher Scientific Inc. · Healthcare
$658.32
+31.1% upside to fair value
Med Conviction
Grade B
High Quality
VS
UnitedHealth Group Incorporated · Healthcare
$375.21
+28.2% upside to fair value
Med Conviction
Grade B
High Quality
QuantHub Verdict
TMO has more upside to fair value
(+31.1%).
These are model outputs — not personalized investment advice.
See all research →
Valuation & Fundamentals
| Metric |
TMO |
UNH |
| Current Price |
$658.32 |
$375.21 |
| Fair Value Estimate |
$863.34 |
$481.06 |
| Upside to Fair Value |
+31.1%
|
+28.2%
|
| Market Cap |
$244.7B |
$340.7B |
| Forward P/E |
—
|
—
|
| EV / EBITDA |
25.9x
|
15.0x
|
| Price / Sales |
5.3x
|
0.8x
|
| Price / FCF |
33.4x
|
14.4x
|
| Revenue Growth YoY |
+10.5%
|
+0.4%
|
| Gross Margin |
40.4%
|
22.5%
|
| Operating Margin |
17.7%
|
4.8%
|
| Return on Equity |
13.4%
|
14.6%
|
| Dividend Yield |
0.28% |
2.41% |
| FCF Yield |
3.0%
|
6.95%
|
| Analyst Consensus |
Strong Buy
|
Strong Buy
|
Investment Thesis
Thermo Fisher Scientific is a global life-sciences and laboratory-services platform spanning Life Sciences Solutions, Analytical Instruments, Specialty Diagnostics, and Laboratory Products and Biopharma Services, with recognized brands including Thermo Scientific, Applied Biosystems, Invitrogen, Fisher Scientific, Patheon, and PPD, serving pharmaceutical, biotech, clinical, academic, and governme…
UnitedHealth Group is the largest diversified healthcare enterprise in the United States, operating UnitedHealthcare insurance plans alongside Optum Health, Optum Insight, and Optum Rx, with 390,000 employees and a market capitalization of $340.74 billion. The business quality is high: a 14.6% return on equity, $26.07 in free cash flow per share, and a P/FCF of 14.39 demonstrate strong cash gener…
Accumulation Zones
| Metric |
TMO |
UNH |
| Zone Low |
$647.50 |
$360.80 |
| Zone High |
$733.84 |
$408.90 |
| In Buy Zone? |
Yes
|
Yes
|