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Stock comparison · Signal date 2026-11-06

ALT vs PRTA: stock comparison and AI forecast

Altimmune, Inc. (ALT) and Prothena Corp Public Ltd Co (PRTA) compared on price performance, valuation, profitability and the daily AI forecast. · Alpha · vs market

Share
Nasdaq · Pharmaceutical Preparations

ALT Altimmune, Inc.

Market Cap
$405M
P/E Ratio
–
Size
small-cap
AI Forecast
Full analysis →
Nasdaq · Pharmaceutical Preparations

PRTA Prothena Corp Public Ltd Co

Market Cap
$409M
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.

ALT · PRTA

Key facts

  • ALT and PRTA have similar market capitalizations ($405M and $409M).
  • PRTA turns -22.5% of its revenue into net income, against -148000.0% for ALT.
  • ALT carries 0.11 times debt per unit of equity, against 0.05 times for PRTA.
  • Both companies share the SEC industry classification Pharmaceutical Preparations.
Fundamentals

Fundamentals side by side

Trailing twelve months.

Valuation & Market

MetricALTPRTA
Market Cap$405M$409M
P/B Ratio–1.52x
EPS$-0.85$-0.71
Book Value/Share–$5.24
Revenue/Share–$2.08
FCF/Share$-0.39–

Profitability & Margins

MetricALTPRTA
ROE-19.4%-8.9%
ROA-17.4%-8.4%
ROIC-19.5%-12.5%
Operating Margin-161653.2%-32.0%
Net Margin-148000.0%-22.5%
EBT Margin-148000.0%-22.4%
Tax Rate0.7%-0.1%

Financial Health

MetricALTPRTA
Current Ratio26.78x23.95x
D/E Ratio0.11x0.05x
Financial Leverage1.11x1.05x
Interest Coverage-30.2x-8.1x
Working Capital$322M$262M

Cash Flow

MetricALTPRTA
Operating Cash Flow-$77M-$31M
Free Cash Flow-$77M–
Capital Spending-$50K–

Operational Efficiency

MetricALTPRTA
Asset Turnover–0.38x
Fixed Assets Turnover–46.4x

Income Statement

MetricALTPRTA
Total Revenue–$107M
Operating Income-$100M-$34M
Net Income-$92M-$24M
R&D Expense$68M$44M

Dividend & Shareholder Information

MetricALTPRTA
Shares Outstanding195M51M
FAQ

ALT vs PRTA: stock comparison and AI forecast

Which is bigger, ALT or PRTA?

ALT and PRTA have similar market capitalizations ($405M and $409M).

Which one does Intratio's AI model rank higher, ALT or PRTA?

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.