WallStSmart

Biogen Inc (BIIB)vsEli Lilly and Company (LLY)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Eli Lilly and Company generates 559% more annual revenue ($65.18B vs $9.89B). LLY leads profitability with a 31.7% profit margin vs 13.1%. LLY appears more attractively valued with a PEG of 0.97. LLY earns a higher WallStSmart Score of 80/100 (A-).

BIIB

Buy

55

out of 100

Grade: C-

Growth: 4.0Profit: 6.0Value: 7.3Quality: 6.3
Piotroski: 2/9Altman Z: 2.53

LLY

Exceptional Buy

80

out of 100

Grade: A-

Growth: 10.0Profit: 10.0Value: 8.7Quality: 8.0
Piotroski: 6/9Altman Z: 2.06
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

BIIBUndervalued (+42.1%)

Margin of Safety

+42.1%

Fair Value

$330.18

Current Price

$189.18

$141.00 discount

UndervaluedFair: $330.18Overvalued
LLYUndervalued (+14.0%)

Margin of Safety

+14.0%

Fair Value

$1065.17

Current Price

$916.31

$148.86 discount

UndervaluedFair: $1065.17Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

BIIB1 strengths · Avg: 8.0/10
Price/BookValuation
1.5x8/10

Reasonable price relative to book value

LLY6 strengths · Avg: 10.0/10
Market CapQuality
$808.22B10/10

Mega-cap, among the largest globally

Return on EquityProfitability
101.2%10/10

Every $100 of equity generates 101 in profit

Profit MarginProfitability
31.7%10/10

Keeps 32 of every $100 in revenue as profit

Operating MarginProfitability
44.9%10/10

Strong operational efficiency at 44.9%

Revenue GrowthGrowth
42.6%10/10

Revenue surging 42.6% year-over-year

EPS GrowthGrowth
51.4%10/10

Earnings expanding 51.4% YoY

Areas to Watch

BIIB4 concerns · Avg: 2.5/10
Return on EquityProfitability
7.4%3/10

ROE of 7.4% — below average capital efficiency

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

PEG RatioValuation
3.712/10

Expensive relative to growth rate

Revenue GrowthGrowth
-7.1%2/10

Revenue declined 7.1%

LLY3 concerns · Avg: 3.0/10
P/E RatioValuation
39.7x4/10

Premium valuation, high expectations priced in

Debt/EquityHealth
1.603/10

Elevated debt levels

Price/BookValuation
30.9x2/10

Trading at 30.9x book value

Comparative Analysis Report

WallStSmart Research

Bull Case : BIIB

The strongest argument for BIIB centers on Price/Book.

Bull Case : LLY

The strongest argument for LLY centers on Market Cap, Return on Equity, Profit Margin. Profitability is solid with margins at 31.7% and operating margin at 44.9%. Revenue growth of 42.6% demonstrates continued momentum.

Bear Case : BIIB

The primary concerns for BIIB are Return on Equity, Piotroski F-Score, PEG Ratio.

Bear Case : LLY

The primary concerns for LLY are P/E Ratio, Debt/Equity, Price/Book. Debt-to-equity of 1.60 is elevated, increasing financial risk.

Key Dynamics to Monitor

BIIB profiles as a declining stock while LLY is a growth play — different risk/reward profiles.

LLY carries more volatility with a beta of 0.43 — expect wider price swings.

LLY is growing revenue faster at 42.6% — sustainability is the question.

LLY generates stronger free cash flow (678M), providing more financial flexibility.

Bottom Line

LLY scores higher overall (80/100 vs 55/100), backed by strong 31.7% margins and 42.6% revenue growth. BIIB offers better value entry with a 42.1% margin of safety. Both earn "Exceptional Buy" and "Buy" 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.

Eli Lilly and Company

HEALTHCARE · DRUG MANUFACTURERS - GENERAL · USA

Eli Lilly and Company is an American pharmaceutical company headquartered in Indianapolis, Indiana, with offices in 18 countries. Its products are sold in approximately 125 countries.

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