MRK vs UNH: Which Is the Better Buy?

Side-by-side comparison of Merck & Co., Inc. and UnitedHealth Group Incorporated β€” fair value, conviction, valuation metrics, and QuantHub research signals. Updated 2026-07-17.
Merck & Co., Inc. Β· Healthcare
$113.87
-12.1% upside to fair value
Grade D High Quality
VS
UnitedHealth Group Incorporated Β· Healthcare
$423.38
+45.0% upside to fair value
Grade B High Quality
QuantHub Verdict
UNH has more upside to fair value (+45.0%). UNH trades at a lower forward P/E (27.2x). These are model outputs β€” not personalized investment advice. See all research β†’
Valuation & Fundamentals
Metric MRK UNH
Current Price $113.87 $423.38
Fair Value Estimate $100.14 $613.90
Upside to Fair Value -12.1% +45.0%
Market Cap $281.2B $384.5B
Forward P/E 32.0x 27.2x
EV / EBITDA 17.3x 13.8x
Price / Sales 4.3x 0.8x
Price / FCF 19.9x 19.6x
Revenue Growth YoY +4.3% +0.4%
Gross Margin 75.9% 18.8%
Operating Margin 27.6% 4.2%
Return on Equity 17.9% 12.4%
Dividend Yield 0% 0%
FCF Yield 5.02% 5.12%
Analyst Consensus Hold Strong Buy
Investment Thesis
MRK β€” Merck & Co., Inc.
Merck & Co., Inc. is a leading global healthcare company specializing in pharmaceuticals, vaccines, and animal health products. Its business quality is high, supported by a durable competitive moat anchored in the dominant global position of Keytruda in PD-1/PD-L1 oncology, a strong vaccines portfolio including Gardasil, and scale in R&D and manufacturing. The company benefits from a seasoned lea…
UNH β€” UnitedHealth Group Incorporated
UnitedHealth Group Incorporated operates in the healthcare sector, specifically within medical and healthcare plans, providing a durable business model supported by a strong competitive moat and consistent earnings growth. The company currently trades at a price of $423.38 with a market cap of $359.873 billion, reflecting a valuation that is cheap relative to its five-year history, supported by a…
Accumulation Zones
Metric MRK UNH
Zone Low $75.11 $460.42
Zone High $85.12 $521.81
In Buy Zone? No Yes
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