WallStSmart

Biogen Inc (BIIB)vsMerck & Company Inc (MRK)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Merck & Company Inc generates 564% more annual revenue ($66.57B vs $10.03B). BIIB leads profitability with a 8.3% profit margin vs 4.8%. BIIB appears more attractively valued with a PEG of 1.16. BIIB earns a higher WallStSmart Score of 55/100 (C-).

BIIB

Buy

55

out of 100

Grade: C-

Growth: 2.7Profit: 6.5Value: 6.7Quality: 6.5
Piotroski: 2/9Altman Z: 2.76

MRK

Hold

36

out of 100

Grade: F

Growth: 4.0Profit: 4.5Value: 2.0Quality: 5.0
Piotroski: 3/9Altman Z: 2.27
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

BIIBUndervalued (+37.5%)

Margin of Safety

+37.5%

Fair Value

$305.78

Current Price

$217.15

$88.63 discount

UndervaluedFair: $305.78Overvalued
MRKSignificantly Overvalued (-73.7%)

Margin of Safety

-73.7%

Fair Value

$82.84

Current Price

$143.93

$61.09 premium

UndervaluedFair: $82.84Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

BIIB2 strengths · Avg: 8.0/10
Price/BookValuation
1.7x8/10

Reasonable price relative to book value

Operating MarginProfitability
25.1%8/10

Strong operational efficiency at 25.1%

MRK2 strengths · Avg: 9.0/10
Market CapQuality
$355.10B10/10

Mega-cap, among the largest globally

Free Cash FlowQuality
$4.48B8/10

Generating 4.5B in free cash flow

Areas to Watch

BIIB4 concerns · Avg: 3.5/10
P/E RatioValuation
37.7x4/10

Premium valuation, high expectations priced in

Revenue GrowthGrowth
3.4%4/10

3.4% revenue growth

Return on EquityProfitability
4.4%3/10

ROE of 4.4% — below average capital efficiency

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

MRK4 concerns · Avg: 3.3/10
Price/BookValuation
8.5x4/10

Trading at 8.5x book value

Return on EquityProfitability
7.6%3/10

ROE of 7.6% — below average capital efficiency

Profit MarginProfitability
4.8%3/10

4.8% margin — thin

Debt/EquityHealth
1.293/10

Elevated debt levels

Comparative Analysis Report

WallStSmart Research

Bull Case : BIIB

The strongest argument for BIIB centers on Price/Book, Operating Margin. PEG of 1.16 suggests the stock is reasonably priced for its growth.

Bull Case : MRK

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

Bear Case : BIIB

The primary concerns for BIIB are P/E Ratio, Revenue Growth, Return on Equity.

Bear Case : MRK

The primary concerns for MRK are Price/Book, Return on Equity, Profit Margin. A P/E of 116.1x leaves little room for execution misses. Thin 4.8% margins leave little buffer for downturns.

Key Dynamics to Monitor

MRK carries more volatility with a beta of 0.23 — expect wider price swings.

MRK is growing revenue faster at 5.1% — sustainability is the question.

MRK generates stronger free cash flow (4.5B), providing more financial flexibility.

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

Bottom Line

BIIB scores higher overall (55/100 vs 36/100). 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.

Biogen Inc

HEALTHCARE · DRUG MANUFACTURERS - GENERAL · USA

Biogen Inc. is an American multinational biotechnology company based in Cambridge, Massachusetts, specializing in the discovery, development, and delivery of therapies for the treatment of neurological diseases to patients worldwide.

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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