WallStSmart

Castle Biosciences Inc (CSTL)vsWaters Corporation (WAT)

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Smart Verdict

WallStSmart Research — data-driven comparison

Waters Corporation generates 1200% more annual revenue ($4.64B vs $357.28M). WAT leads profitability with a 3.6% profit margin vs -5.4%. WAT earns a higher WallStSmart Score of 45/100 (D+).

CSTL

Avoid

34

out of 100

Grade: F

Growth: 6.7Profit: 2.0Value: 6.7Quality: 8.5
Piotroski: 3/9Altman Z: 3.11

WAT

Hold

45

out of 100

Grade: D+

Growth: 5.3Profit: 5.0Value: 2.7Quality: 7.0
Piotroski: 2/9Altman Z: 4.85
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

CSTLUndervalued (+58.2%)

Margin of Safety

+58.2%

Fair Value

$77.31

Current Price

$35.81

$41.50 discount

UndervaluedFair: $77.31Overvalued
WATSignificantly Overvalued (-45.9%)

Margin of Safety

-45.9%

Fair Value

$225.66

Current Price

$433.54

$207.88 premium

UndervaluedFair: $225.66Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

CSTL4 strengths · Avg: 9.0/10
Debt/EquityHealth
0.0810/10

Conservative balance sheet, low leverage

Altman Z-ScoreHealth
3.1110/10

Safe zone — low bankruptcy risk

Price/BookValuation
2.3x8/10

Reasonable price relative to book value

Revenue GrowthGrowth
20.1%8/10

Revenue surging 20.1% year-over-year

WAT3 strengths · Avg: 9.3/10
Revenue GrowthGrowth
113.4%10/10

Revenue surging 113.4% year-over-year

Altman Z-ScoreHealth
4.8510/10

Safe zone — low bankruptcy risk

Price/BookValuation
2.8x8/10

Reasonable price relative to book value

Areas to Watch

CSTL4 concerns · Avg: 2.5/10
Market CapQuality
$1.06B3/10

Smaller company, higher risk/reward

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

Return on EquityProfitability
-4.1%2/10

ROE of -4.1% — below average capital efficiency

EPS GrowthGrowth
-51.6%2/10

Earnings declined 51.6%

WAT4 concerns · Avg: 3.3/10
PEG RatioValuation
1.574/10

Expensive relative to growth rate

Return on EquityProfitability
1.1%3/10

ROE of 1.1% — below average capital efficiency

Profit MarginProfitability
3.6%3/10

3.6% margin — thin

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

Comparative Analysis Report

WallStSmart Research

Bull Case : CSTL

The strongest argument for CSTL centers on Debt/Equity, Altman Z-Score, Price/Book. Revenue growth of 20.1% demonstrates continued momentum.

Bull Case : WAT

The strongest argument for WAT centers on Revenue Growth, Altman Z-Score, Price/Book. Revenue growth of 113.4% demonstrates continued momentum.

Bear Case : CSTL

The primary concerns for CSTL are Market Cap, Piotroski F-Score, Return on Equity.

Bear Case : WAT

The primary concerns for WAT are PEG Ratio, Return on Equity, Profit Margin. A P/E of 107.0x leaves little room for execution misses. Thin 3.6% margins leave little buffer for downturns.

Key Dynamics to Monitor

CSTL profiles as a growth stock while WAT is a hypergrowth play — different risk/reward profiles.

WAT carries more volatility with a beta of 1.19 — expect wider price swings.

WAT is growing revenue faster at 113.4% — sustainability is the question.

WAT generates stronger free cash flow (153M), providing more financial flexibility.

Bottom Line

WAT scores higher overall (45/100 vs 34/100) and 113.4% revenue growth. CSTL offers better value entry with a 58.2% margin of safety. Both earn "Hold" 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.

Castle Biosciences Inc

HEALTHCARE · DIAGNOSTICS & RESEARCH · USA

Castle Biosciences Inc. is a pioneering diagnostics firm that enhances patient care through advanced gene-expression profiling tests, particularly within the skin cancer sector, exemplified by its flagship product, DecisionDx®-Melanoma. This innovative test offers essential insights for risk stratification, enabling oncologists to make informed treatment decisions in managing melanoma. With a strong focus on precision medicine, coupled with an extensive research and development strategy, Castle Biosciences is poised for growth as it seeks to expand its offerings and meet critical clinical demands. By addressing the complexities inherent in oncology, the company not only aims to improve patient outcomes but also to generate substantial value for its investors.

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Waters Corporation

HEALTHCARE · DIAGNOSTICS & RESEARCH · USA

Waters Corporation is a publicly traded Analytical Laboratory instrument and software company headquartered in Milford, Massachusetts.

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