WallStSmart

Regeneron Pharmaceuticals Inc (REGN)vsACELYRIN, INC. Common Stock (SLRN)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

REGN leads profitability with a 31.4% profit margin vs 0.0%. REGN earns a higher WallStSmart Score of 58/100 (C).

REGN

Buy

58

out of 100

Grade: C

Growth: 4.0Profit: 7.5Value: 7.3Quality: 7.3
Piotroski: 3/9Altman Z: 4.68

SLRN

Avoid

32

out of 100

Grade: F

Growth: 4.3Profit: 3.0Value: 5.0Quality: 8.5
Piotroski: 3/9Altman Z: 5.71
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

REGNSignificantly Overvalued (-165.8%)

Margin of Safety

-165.8%

Fair Value

$281.93

Current Price

$749.47

$467.54 premium

UndervaluedFair: $281.93Overvalued

Intrinsic value data unavailable for SLRN.

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

REGN6 strengths · Avg: 8.8/10
Profit MarginProfitability
31.4%10/10

Keeps 31 of every $100 in revenue as profit

Altman Z-ScoreHealth
4.6810/10

Safe zone — low bankruptcy risk

Market CapQuality
$78.41B9/10

Large-cap with strong market position

P/E RatioValuation
17.9x8/10

Attractively priced relative to earnings

Price/BookValuation
2.5x8/10

Reasonable price relative to book value

Operating MarginProfitability
23.1%8/10

Strong operational efficiency at 23.1%

SLRN3 strengths · Avg: 10.0/10
Price/BookValuation
0.6x10/10

Reasonable price relative to book value

Debt/EquityHealth
0.0110/10

Conservative balance sheet, low leverage

Altman Z-ScoreHealth
5.7110/10

Safe zone — low bankruptcy risk

Areas to Watch

REGN4 concerns · Avg: 3.3/10
PEG RatioValuation
1.564/10

Expensive relative to growth rate

Revenue GrowthGrowth
2.5%4/10

2.5% revenue growth

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

EPS GrowthGrowth
-2.6%2/10

Earnings declined 2.6%

SLRN4 concerns · Avg: 3.5/10
Revenue GrowthGrowth
0.0%4/10

0.0% revenue growth

EPS GrowthGrowth
0.0%4/10

0.0% earnings growth

Market CapQuality
$229.17M3/10

Smaller company, higher risk/reward

Profit MarginProfitability
0.0%3/10

0.0% margin — thin

Comparative Analysis Report

WallStSmart Research

Bull Case : REGN

The strongest argument for REGN centers on Profit Margin, Altman Z-Score, Market Cap. Profitability is solid with margins at 31.4% and operating margin at 23.1%.

Bull Case : SLRN

The strongest argument for SLRN centers on Price/Book, Debt/Equity, Altman Z-Score.

Bear Case : REGN

The primary concerns for REGN are PEG Ratio, Revenue Growth, Piotroski F-Score.

Bear Case : SLRN

The primary concerns for SLRN are Revenue Growth, EPS Growth, Market Cap.

Key Dynamics to Monitor

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

REGN is growing revenue faster at 2.5% — sustainability is the question.

REGN generates stronger free cash flow (922M), providing more financial flexibility.

Monitor BIOTECHNOLOGY industry trends, competitive dynamics, and regulatory changes.

Bottom Line

REGN scores higher overall (58/100 vs 32/100), backed by strong 31.4% margins. Both earn "Buy" and "Avoid" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Regeneron Pharmaceuticals Inc

HEALTHCARE · BIOTECHNOLOGY · USA

Regeneron Pharmaceuticals, Inc. is an American biotechnology company headquartered in Westchester County, New York. Originally focused on neurotrophic factors and their regenerative capabilities, giving rise to its name, the company then branched out into the study of both cytokine and tyrosine kinase receptors.

ACELYRIN, INC. Common Stock

HEALTHCARE · BIOTECHNOLOGY · USA

Acelyrin, Inc., a clinical biopharma company, focuses on identifying, acquiring, and accelerating the development and commercialization of transformative medicines. The company is headquartered in Agoura Hills, California.

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