Merck & Company Inc (MRK)vsWest Pharmaceutical Services Inc (WST)
MRK
Merck & Company Inc
$128.58
+0.16%
HEALTHCARE · Cap: $316.14B
WST
West Pharmaceutical Services Inc
$354.07
+1.57%
HEALTHCARE · Cap: $24.00B
Smart Verdict
WallStSmart Research — data-driven comparison
Merck & Company Inc generates 1877% more annual revenue ($65.77B vs $3.33B). WST leads profitability with a 17.0% profit margin vs 13.6%. WST appears more attractively valued with a PEG of 2.91. WST earns a higher WallStSmart Score of 61/100 (C+).
MRK
Hold50
out of 100
Grade: D+
WST
Buy61
out of 100
Grade: C+
Intrinsic Value Comparison
Multi-model valuation · Graham Formula
Margin of Safety
-58.0%
Fair Value
$81.23
Current Price
$128.58
$47.35 premium
Margin of Safety
-47.9%
Fair Value
$166.45
Current Price
$354.07
$187.62 premium
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Mega-cap, among the largest globally
Strong operational efficiency at 38.6%
Generating 2.9B in free cash flow
Safe zone — low bankruptcy risk
Conservative balance sheet, low leverage
Strong operational efficiency at 22.5%
Areas to Watch
Premium valuation, high expectations priced in
4.9% revenue growth
Elevated debt levels
Weak financial health signals
Trading at 8.4x book value
Expensive relative to growth rate
Premium valuation, high expectations priced in
Comparative Analysis Report
WallStSmart ResearchBull Case : MRK
The strongest argument for MRK centers on Market Cap, Operating Margin, Free Cash Flow.
Bull Case : WST
The strongest argument for WST centers on Altman Z-Score, Debt/Equity, Operating Margin. Profitability is solid with margins at 17.0% and operating margin at 22.5%. Revenue growth of 13.8% demonstrates continued momentum.
Bear Case : MRK
The primary concerns for MRK are P/E Ratio, Revenue Growth, Debt/Equity.
Bear Case : WST
The primary concerns for WST are Price/Book, PEG Ratio, P/E Ratio. A P/E of 43.5x leaves little room for execution misses.
Key Dynamics to Monitor
MRK profiles as a value stock while WST is a mature play — different risk/reward profiles.
WST carries more volatility with a beta of 1.16 — expect wider price swings.
WST is growing revenue faster at 13.8% — sustainability is the question.
MRK generates stronger free cash flow (2.9B), providing more financial flexibility.
Bottom Line
WST scores higher overall (61/100 vs 50/100), backed by strong 17.0% margins and 13.8% revenue growth. Both earn "Buy" and "Hold" ratings respectively — the choice depends on your investment horizon and risk tolerance.
This analysis is generated from publicly available financial data. Not financial advice.
Merck & Company Inc
HEALTHCARE · DRUG MANUFACTURERS - GENERAL · USA
Merck & Co. is an American multinational pharmaceutical company headquartered in Kenilworth, New Jersey. It is named after the Merck family, which set up Merck Group in Germany in 1668.
Visit Website →West Pharmaceutical Services Inc
HEALTHCARE · MEDICAL INSTRUMENTS & SUPPLIES · USA
West Pharmaceutical Services, Inc. is a designer and manufacturer of injectable pharmaceutical packaging and delivery systems. The company is headquartered in Exton, Pennsylvania.
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