Castle Biosciences Inc (CSTL)vsIDEXX Laboratories Inc (IDXX)
CSTL
Castle Biosciences Inc
$25.27
-0.32%
HEALTHCARE · Cap: $743.28M
IDXX
IDEXX Laboratories Inc
$575.72
+0.97%
HEALTHCARE · Cap: $45.53B
Smart Verdict
WallStSmart Research — data-driven comparison
IDEXX Laboratories Inc generates 1150% more annual revenue ($4.30B vs $344.23M). IDXX leads profitability with a 24.6% profit margin vs -7.0%. IDXX earns a higher WallStSmart Score of 61/100 (C+).
CSTL
Avoid31
out of 100
Grade: F
IDXX
Buy61
out of 100
Grade: C+
Intrinsic Value Comparison
Multi-model valuation · Graham Formula
Intrinsic value data unavailable for CSTL.
Margin of Safety
-40.2%
Fair Value
$462.85
Current Price
$575.72
$112.87 premium
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Conservative balance sheet, low leverage
Safe zone — low bankruptcy risk
Reasonable price relative to book value
Every $100 of equity generates 66 in profit
Keeps 25 of every $100 in revenue as profit
Strong operational efficiency at 29.8%
Areas to Watch
0.8% revenue growth
Smaller company, higher risk/reward
Weak financial health signals
ROE of -5.2% — below average capital efficiency
Expensive relative to growth rate
Premium valuation, high expectations priced in
Trading at 28.6x book value
Comparative Analysis Report
WallStSmart ResearchBull Case : CSTL
The strongest argument for CSTL centers on Debt/Equity, Altman Z-Score, Price/Book.
Bull Case : IDXX
The strongest argument for IDXX centers on Return on Equity, Profit Margin, Operating Margin. Profitability is solid with margins at 24.6% and operating margin at 29.8%. Revenue growth of 14.3% demonstrates continued momentum.
Bear Case : CSTL
The primary concerns for CSTL are Revenue Growth, Market Cap, Piotroski F-Score.
Bear Case : IDXX
The primary concerns for IDXX are PEG Ratio, P/E Ratio, Price/Book. A P/E of 43.7x leaves little room for execution misses.
Key Dynamics to Monitor
CSTL profiles as a turnaround stock while IDXX is a mature play — different risk/reward profiles.
IDXX carries more volatility with a beta of 1.70 — expect wider price swings.
IDXX is growing revenue faster at 14.3% — sustainability is the question.
IDXX generates stronger free cash flow (323M), providing more financial flexibility.
Bottom Line
IDXX scores higher overall (61/100 vs 31/100), backed by strong 24.6% margins and 14.3% revenue growth. 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.
Castle Biosciences Inc
HEALTHCARE · DIAGNOSTICS & RESEARCH · USA
Castle Biosciences Inc. is a pioneering company in the diagnostics sector, focused on transforming patient care through its innovative gene-expression profiling tests, particularly in skin cancer. Its leading product, DecisionDx®-Melanoma, plays a crucial role in the management of melanoma by providing vital insights into risk stratification and guiding treatment decisions based on gene expression analysis. Committed to advancing precision medicine, the company leverages its proprietary technology to develop additional assays that address significant clinical needs. With a strong emphasis on research and development and a promising pipeline, Castle Biosciences is well-positioned for sustainable growth while enhancing clinical outcomes and delivering value to shareholders in the dynamic oncology market.
Visit Website →IDEXX Laboratories Inc
HEALTHCARE · DIAGNOSTICS & RESEARCH · USA
IDEXX Laboratories, Inc. is an American multinational corporation engaged in the development, manufacture, and distribution of products and services for the companion animal veterinary, livestock and poultry, water testing, and dairy markets.
Compare with Other DIAGNOSTICS & RESEARCH Stocks
Want to dig deeper into these stocks?