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Stock comparison · Signal date 2026-11-06

CSTL vs FLGT: stock comparison and AI forecast

Castle Biosciences Inc (CSTL) and Fulgent Genetics, Inc. (FLGT) compared on price performance, valuation, profitability and the daily AI forecast. · Alpha · vs market

Share
Nasdaq · Services-Medical Laboratories

CSTL Castle Biosciences Inc

Market Cap
$1.04B
P/E Ratio
–
Size
small-cap
AI Forecast
Full analysis →
Nasdaq · Services-Medical Laboratories

FLGT Fulgent Genetics, Inc.

Market Cap
$513M
P/E Ratio
–
Size
small-cap
AI Forecast
Full analysis →
Model output

Which one does the AI model favor?

Intratio's model scores both stocks every trading day. Sign in to see their current direction; the exact ratings and forecasts come with a plan or a free follow slot.

CSTL · FLGT

Key facts

  • CSTL is 2.0 times larger than FLGT by market capitalization ($1.04B against $513M).
  • CSTL turns -6.1% of its revenue into net income, against -27.5% for FLGT.
  • CSTL carries 0.21 times debt per unit of equity, against 0.10 times for FLGT.
  • Both companies share the SEC industry classification Services-Medical Laboratories.
Fundamentals

Fundamentals side by side

Trailing twelve months.

Valuation & Market

MetricCSTLFLGT
Market Cap$1.04B$513M
P/B Ratio2.18x0.52x
EPS$-0.94$-3.47
Book Value/Share$15.66$36.00
Revenue/Share$12.34$12.00
FCF/Share$0.13$-0.05

Profitability & Margins

MetricCSTLFLGT
ROE-4.8%-9.2%
ROA-4.0%-8.4%
ROIC-5.5%-12.9%
Gross Margin77.1%33.8%
Operating Margin-7.4%-39.2%
Net Margin-6.1%-27.5%
EBT Margin-7.4%-30.0%
Tax Rate-1.4%7.1%

Financial Health

MetricCSTLFLGT
Current Ratio5.28x5.34x
Quick Ratio5.12x5.33x
D/E Ratio0.21x0.10x
Financial Leverage1.21x1.09x
Interest Coverage-14.4x-239.9x
Working Capital$289M$312M

Cash Flow

MetricCSTLFLGT
Operating Cash Flow$40M$14M
Free Cash Flow$4M-$1M
Capital Spending-$36M-$16M
OCF Growth YoY-35.7%847.3%
FCF Growth YoY-84.4%–
FCF/Sales1.1%-0.4%
CapEx/Sales9.5%4.8%

Operational Efficiency

MetricCSTLFLGT
Asset Turnover0.65x0.31x
Receivables Turnover7.2x5.3x
Inventory Turnover8.3x330.7x
Fixed Assets Turnover3.4x3.0x
Days Sales Outstanding50 days69 days
Days Inventory44 days1 days
Payables Period56 days28 days
Cash Conversion Cycle38 days42 days

Income Statement

MetricCSTLFLGT
Total Revenue$377M$330M
Operating Income-$28M-$129M
Net Income-$23M-$91M
R&D Expense$58M$57M
SG&A Expense$252M$242M
Cost of Goods Sold$86M$219M

Dividend & Shareholder Information

MetricCSTLFLGT
Shares Outstanding31M28M
EPS Growth-280.8%–
FAQ

CSTL vs FLGT: stock comparison and AI forecast

Which is bigger, CSTL or FLGT?

CSTL is 2.0 times larger than FLGT by market capitalization ($1.04B against $513M).

Which one does Intratio's AI model rank higher, CSTL or FLGT?

Intratio's model scores both stocks every trading day. Sign in to see their current direction; the exact ratings and forecasts come with a plan or a free follow slot.

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This analysis is generated automatically using our proprietary AI systems and should not be considered personalized investment advice. Past performance does not guarantee future results. Always conduct your own research and consider consulting a financial advisor before making investment decisions.