MRK vs TMO: Which Is the Better Buy?
Side-by-side comparison of Merck & Co., Inc. and Thermo Fisher Scientific Inc. — fair value, conviction, valuation metrics, and QuantHub research signals.
Updated 2026-05-04.
Merck & Co., Inc. · Healthcare
$119.07
-4.0% upside to fair value
Grade D
High Quality
VS
Thermo Fisher Scientific Inc. · Healthcare
$462.60
+10.1% upside to fair value
Grade B
QuantHub Verdict
TMO has more upside to fair value
(+10.1%).
MRK trades at a lower forward P/E
(16.2x).
These are model outputs — not personalized investment advice.
See all research →
Valuation & Fundamentals
| Metric |
MRK |
TMO |
| Current Price |
$119.07 |
$462.60 |
| Fair Value Estimate |
$114.30 |
$509.20 |
| Upside to Fair Value |
-4.0%
|
+10.1%
|
| Market Cap |
$294.4B |
$171.9B |
| Forward P/E |
16.2x
|
25.1x
|
| EV / EBITDA |
12.6x
|
19.0x
|
| Price / Sales |
4.5x
|
3.8x
|
| Price / FCF |
23.8x
|
25.5x
|
| Revenue Growth YoY |
+5.0%
|
+6.2%
|
| Gross Margin |
81.5%
|
39.4%
|
| Operating Margin |
41.2%
|
17.8%
|
| Return on Equity |
36.2%
|
13.3%
|
| Dividend Yield |
0% |
0% |
| FCF Yield |
4.2%
|
3.92%
|
| Analyst Consensus |
Hold
|
Strong Buy
|
Investment Thesis
Merck & Co., Inc. is a leading global healthcare company specializing in pharmaceuticals, particularly oncology and vaccines. The company benefits from a strong business quality characterized by a durable competitive moat, high gross margins of 81.5%, and a robust return on equity of 36.2%. Despite these strengths, the stock is currently fairly valued but slightly overvalued by 4% relative to its…
Thermo Fisher Scientific Inc. operates in the healthcare sector, specializing in medical diagnostics and research tools across four main segments: Laboratory Products and Biopharma Services, Life Sciences Solutions, Analytical Instruments, and Specialty Diagnostics. The company demonstrates medium business quality with steady revenue growth of 6.2% and earnings growth of 9.6% in the most recent q…
Accumulation Zones
| Metric |
MRK |
TMO |
| Zone Low |
$85.72 |
$381.90 |
| Zone High |
$97.16 |
$432.82 |
| In Buy Zone? |
No
|
No
|