WallStSmart

Castle Biosciences Inc (CSTL)vsNatera Inc (NTRA)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Natera Inc generates 636% more annual revenue ($2.50B vs $339.92M). CSTL leads profitability with a -3.8% profit margin vs -9.1%. NTRA earns a higher WallStSmart Score of 31/100 (F).

CSTL

Avoid

31

out of 100

Grade: F

Growth: 4.7Profit: 2.0Value: 6.7Quality: 8.5
Piotroski: 3/9Altman Z: 3.11

NTRA

Avoid

31

out of 100

Grade: F

Growth: 8.0Profit: 2.0Value: 5.0Quality: 6.0
Piotroski: 3/9Altman Z: 0.82
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

CSTLUndervalued (+58.2%)

Margin of Safety

+58.2%

Fair Value

$77.42

Current Price

$21.38

$56.04 discount

UndervaluedFair: $77.42Overvalued

Intrinsic value data unavailable for NTRA.

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

CSTL3 strengths · Avg: 10.0/10
Price/BookValuation
1.4x10/10

Reasonable price relative to book value

Debt/EquityHealth
0.0810/10

Conservative balance sheet, low leverage

Altman Z-ScoreHealth
3.1110/10

Safe zone — low bankruptcy risk

NTRA2 strengths · Avg: 9.5/10
Revenue GrowthGrowth
38.8%10/10

Revenue surging 38.8% year-over-year

Debt/EquityHealth
0.149/10

Conservative balance sheet, low leverage

Areas to Watch

CSTL4 concerns · Avg: 2.5/10
Market CapQuality
$627.83M3/10

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

Revenue GrowthGrowth
-4.9%2/10

Revenue declined 4.9%

NTRA4 concerns · Avg: 3.3/10
Price/BookValuation
18.4x4/10

Trading at 18.4x book value

EPS GrowthGrowth
0.0%4/10

0.0% earnings growth

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

Return on EquityProfitability
-12.8%2/10

ROE of -12.8% — below average capital efficiency

Comparative Analysis Report

WallStSmart Research

Bull Case : CSTL

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

Bull Case : NTRA

The strongest argument for NTRA centers on Revenue Growth, Debt/Equity. Revenue growth of 38.8% demonstrates continued momentum.

Bear Case : CSTL

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

Bear Case : NTRA

The primary concerns for NTRA are Price/Book, EPS Growth, Piotroski F-Score.

Key Dynamics to Monitor

CSTL profiles as a turnaround stock while NTRA is a hypergrowth play — different risk/reward profiles.

NTRA carries more volatility with a beta of 1.54 — expect wider price swings.

NTRA is growing revenue faster at 38.8% — sustainability is the question.

NTRA generates stronger free cash flow (18M), providing more financial flexibility.

Bottom Line

CSTL scores higher overall (31/100 vs 31/100). Both earn "Avoid" 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 leading diagnostics company dedicated to improving patient care through cutting-edge gene-expression profiling tests, specifically in the realm of skin cancer, with its flagship product, DecisionDx®-Melanoma. This innovative solution provides crucial insights into patient risk stratification, thus facilitating informed treatment decisions in melanoma management. With a steadfast commitment to precision medicine and a robust research and development framework, Castle Biosciences is strategically positioned to expand its portfolio and address pivotal clinical needs. By focusing on the complexities of oncology, the company aims to enhance clinical outcomes while driving significant value for shareholders.

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Natera Inc

HEALTHCARE · DIAGNOSTICS & RESEARCH · USA

Natera, Inc., a diagnostic company, develops and markets molecular testing services globally. The company is headquartered in San Carlos, California.

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