WallStSmart

Merck & Company Inc (MRK)vsRepligen Corporation (RGEN)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Merck & Company Inc generates 8516% more annual revenue ($65.77B vs $763.34M). MRK leads profitability with a 13.6% profit margin vs 6.7%. RGEN appears more attractively valued with a PEG of 1.79. MRK earns a higher WallStSmart Score of 50/100 (D+).

MRK

Hold

50

out of 100

Grade: D+

Growth: 3.3Profit: 8.0Value: 2.7Quality: 5.0
Piotroski: 3/9Altman Z: 2.30

RGEN

Hold

49

out of 100

Grade: D+

Growth: 6.0Profit: 4.5Value: 4.0Quality: 8.0
Piotroski: 4/9Altman Z: 2.47
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

MRKSignificantly Overvalued (-49.3%)

Margin of Safety

-49.3%

Fair Value

$80.88

Current Price

$120.79

$39.91 premium

UndervaluedFair: $80.88Overvalued
RGENUndervalued (+10.3%)

Margin of Safety

+10.3%

Fair Value

$155.38

Current Price

$122.31

$33.07 discount

UndervaluedFair: $155.38Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

MRK3 strengths · Avg: 9.3/10
Market CapQuality
$285.64B10/10

Mega-cap, among the largest globally

Operating MarginProfitability
38.6%10/10

Strong operational efficiency at 38.6%

Free Cash FlowQuality
$2.93B8/10

Generating 2.9B in free cash flow

RGEN1 strengths · Avg: 8.0/10
EPS GrowthGrowth
47.9%8/10

Earnings expanding 47.9% YoY

Areas to Watch

MRK4 concerns · Avg: 3.5/10
P/E RatioValuation
32.6x4/10

Premium valuation, high expectations priced in

Revenue GrowthGrowth
4.9%4/10

4.9% revenue growth

Debt/EquityHealth
1.073/10

Elevated debt levels

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

RGEN4 concerns · Avg: 3.0/10
PEG RatioValuation
1.794/10

Expensive relative to growth rate

Return on EquityProfitability
2.4%3/10

ROE of 2.4% — below average capital efficiency

Profit MarginProfitability
6.7%3/10

6.7% margin — thin

P/E RatioValuation
137.7x2/10

Premium valuation, high expectations priced in

Comparative Analysis Report

WallStSmart Research

Bull Case : MRK

The strongest argument for MRK centers on Market Cap, Operating Margin, Free Cash Flow.

Bull Case : RGEN

The strongest argument for RGEN centers on EPS Growth. Revenue growth of 14.8% demonstrates continued momentum.

Bear Case : MRK

The primary concerns for MRK are P/E Ratio, Revenue Growth, Debt/Equity.

Bear Case : RGEN

The primary concerns for RGEN are PEG Ratio, Return on Equity, Profit Margin. A P/E of 137.7x leaves little room for execution misses.

Key Dynamics to Monitor

RGEN carries more volatility with a beta of 1.09 — expect wider price swings.

RGEN is growing revenue faster at 14.8% — sustainability is the question.

MRK generates stronger free cash flow (2.9B), providing more financial flexibility.

Monitor DRUG MANUFACTURERS - GENERAL industry trends, competitive dynamics, and regulatory changes.

Bottom Line

MRK scores higher overall (50/100 vs 49/100). Both earn "Hold" 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.

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Repligen Corporation

HEALTHCARE · MEDICAL INSTRUMENTS & SUPPLIES · USA

Repligen Corporation develops and markets bioprocessing systems and technologies for use in the biologic drug manufacturing process in North America, Europe, Asia Pacific, and internationally. The company is headquartered in Waltham, Massachusetts.

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