MRK vs SLB: Which Is the Better Buy?

Side-by-side comparison of Merck & Co., Inc. and SLB N.V. โ€” fair value, conviction, valuation metrics, and QuantHub research signals. Updated 2026-04-11.
Merck & Co., Inc. ยท Healthcare
$121.42
-2.9% upside to fair value
Med Conviction Grade B
VS
SLB N.V. ยท Energy
$51.92
-20.2% upside to fair value
Med Conviction Grade C+
QuantHub Verdict
MRK has more upside to fair value (-2.9%). MRK trades at a lower forward P/E (14.0x). These are model outputs โ€” not personalized investment advice. See all research โ†’
Valuation & Fundamentals
Metric MRK SLB
Current Price $121.42 $51.92
Fair Value Estimate $118.00 $41.43
Upside to Fair Value -2.9% -20.2%
Market Cap $300.2B $77.9B
Forward P/E 14.0x 18.6x
EV / EBITDA 11.8x 9.2x
Price / Sales 4.1x 2.2x
Price / FCF 21.4x 16.1x
Revenue Growth YoY +1.3% -1.6%
Gross Margin 81.5% 18.21%
Operating Margin 41.2% 15.28%
Return on Equity 34.7% 12.83%
Dividend Yield 3.1% 2.21%
FCF Yield 4.7% 6.21%
Analyst Consensus Buy Buy
Investment Thesis
MRK โ€” Merck & Co., Inc.
Merck is a top-5 global pharmaceutical company generating $65B in annual revenue with 81.5% gross margins and 28% net margins. Keytruda, the world's best-selling drug at $31.7B (49% of pharma revenue), faces patent expiry in 2028. Merck is aggressively building replacements through M&A and pipeline launches: Winrevair ($1.4B year one), Capvaxive ($759M), and the $6.7B Terns acquisition for TERN-7โ€ฆ
SLB โ€” SLB N.V.
SLB is the world's largest oilfield services company with $35.7B in FY2025 revenue, operating across four divisions: Digital and Integration, Reservoir Performance, Well Construction, and Production Systems. The company completed the ChampionX acquisition in 2025 and is pursuing a digital transformation and AI-driven strategy. At $51.92, SLB trades at 2.18x P/S (in the fair range of the 5-year diโ€ฆ
Accumulation Zones
Metric MRK SLB
Zone Low $88.00 $34.00
Zone High $100.00 $39.00
In Buy Zone? No No
โ† MRK Research    SLB Research โ†’    All Research