WallStSmart

Castle Biosciences Inc (CSTL)vsThermo Fisher Scientific Inc (TMO)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Thermo Fisher Scientific Inc generates 12869% more annual revenue ($46.34B vs $357.28M). TMO leads profitability with a 15.0% profit margin vs -5.4%. TMO earns a higher WallStSmart Score of 60/100 (C+).

CSTL

Hold

37

out of 100

Grade: F

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

TMO

Buy

60

out of 100

Grade: C+

Growth: 4.7Profit: 7.0Value: 3.3Quality: 6.0
Piotroski: 3/9Altman Z: 2.13
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

CSTLUndervalued (+59.2%)

Margin of Safety

+59.2%

Fair Value

$79.18

Current Price

$32.03

$47.15 discount

UndervaluedFair: $79.18Overvalued
TMOSignificantly Overvalued (-68.2%)

Margin of Safety

-68.2%

Fair Value

$343.49

Current Price

$594.00

$250.51 premium

UndervaluedFair: $343.49Overvalued

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
2.1x8/10

Reasonable price relative to book value

Revenue GrowthGrowth
20.1%8/10

Revenue surging 20.1% year-over-year

TMO2 strengths · Avg: 9.0/10
Market CapQuality
$208.81B10/10

Mega-cap, among the largest globally

Free Cash FlowQuality
$1.68B8/10

Generating 1.7B in free cash flow

Areas to Watch

CSTL4 concerns · Avg: 2.5/10
Market CapQuality
$928.40M3/10

Smaller company, higher risk/reward

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

Return on EquityProfitability
-2.8%2/10

ROE of -2.8% — below average capital efficiency

EPS GrowthGrowth
-51.6%2/10

Earnings declined 51.6%

TMO3 concerns · Avg: 3.7/10
PEG RatioValuation
1.874/10

Expensive relative to growth rate

P/E RatioValuation
30.4x4/10

Premium valuation, high expectations priced in

Piotroski F-ScoreQuality
3/93/10

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 : TMO

The strongest argument for TMO centers on Market Cap, Free Cash Flow. Revenue growth of 10.5% demonstrates continued momentum.

Bear Case : CSTL

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

Bear Case : TMO

The primary concerns for TMO are PEG Ratio, P/E Ratio, Piotroski F-Score.

Key Dynamics to Monitor

CSTL profiles as a growth stock while TMO is a value play — different risk/reward profiles.

CSTL carries more volatility with a beta of 0.97 — expect wider price swings.

CSTL is growing revenue faster at 20.1% — sustainability is the question.

TMO generates stronger free cash flow (1.7B), providing more financial flexibility.

Bottom Line

TMO scores higher overall (60/100 vs 37/100) and 10.5% revenue growth. CSTL offers better value entry with a 59.2% margin of safety. 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.

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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Thermo Fisher Scientific Inc

HEALTHCARE · DIAGNOSTICS & RESEARCH · USA

Thermo Fisher Scientific is an American provisioner of scientific instrumentation, reagents and consumables, and software and services to healthcare, life science, and other laboratories in academia, government, and industry (including in the biotechnology and pharmaceutical sectors). Based in Waltham, Massachusetts, Thermo Fisher was created in 2006 by the merger of Thermo Electron and Fisher Scientific, to form a company with US$ 9 billion in combined revenues.

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