CAT vs MRK: Which Is the Better Buy?

Side-by-side comparison of Caterpillar Inc. and Merck & Co., Inc. โ€” fair value, conviction, valuation metrics, and QuantHub research signals. Updated 2026-09-21.
Caterpillar Inc. ยท Industrials
$808.99
-2.2% upside to fair value
Med Conviction Grade C High Quality
VS
Merck & Co., Inc. ยท Healthcare
$147.17
-4.1% upside to fair value
Med Conviction Grade C
QuantHub Verdict
CAT has more upside to fair value (-2.2%). These are model outputs โ€” not personalized investment advice. See all research โ†’
Valuation & Fundamentals
Metric CAT MRK
Current Price $808.99 $147.17
Fair Value Estimate $790.88 $141.07
Upside to Fair Value -2.2% -4.1%
Market Cap $372.6B $363.5B
Forward P/E โ€” โ€”
EV / EBITDA 23.6x 29.6x
Price / Sales 5.0x 5.5x
Price / FCF 41.4x 22.6x
Revenue Growth YoY +24.0% +5.1%
Gross Margin 33.9% 75.4%
Operating Margin 17.5% 16.7%
Return on Equity 54.1% 6.6%
Dividend Yield 0.76% 2.31%
FCF Yield 2.41% 4.42%
Analyst Consensus Buy Buy
Investment Thesis
CAT โ€” Caterpillar Inc.
Caterpillar is the world's premier manufacturer of heavy construction and mining equipment, diesel and natural gas power units, and industrial gas turbines, organized across Construction Industries, Resource Industries, Energy & Transportation, and Financial Products, with 118,000 employees and a century-old brand. Business quality is high: return on equity of 54.1%, TTM operating margin of 17.5%โ€ฆ
MRK โ€” Merck & Co., Inc.
Merck & Co., Inc. is a global healthcare leader with two core divisions, Pharmaceuticals and Animal Health, spanning oncology, vaccines, acute hospital care, immunology, neuroscience, virology, cardiovascular and diabetes, and it employs roughly 74,000 people under CEO Robert Davis. The business quality is medium: TTM gross margin of 75.4% and TTM operating margin of 16.7% reflect a genuinely higโ€ฆ
Accumulation Zones
Metric CAT MRK
Zone Low $593.16 $105.80
Zone High $672.25 $119.91
In Buy Zone? No No
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