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Prothena stock: key metrics
PRTAProthena had an operating margin of −1,905.8% and a return on invested capital (ROIC) of −37% in fiscal 2025.
Margins show how much of revenue is left over, returns on capital how hard the invested money works.
Daily figure as of 13 Nov 2026
Margins
- Gross margin
- Operating margin
- Net margin
Figures as a table
| Year | Gross margin | Operating margin | Net margin |
|---|---|---|---|
| 2010 | 100.0% | −978.4% | −1,004.2% |
| 2011 | 100.0% | −5,768.0% | −5,852.1% |
| 2012 | −1,184.4% | −1,557.9% | −1,558.0% |
| 2013 | −3,753.8% | −5,980.3% | −6,064.5% |
| 2014 | 24.4% | −13.1% | −14.1% |
| 2015 | −3,536.5% | −4,974.3% | −5,016.3% |
| 2016 | −11,230.2% | −15,121.8% | −15,176.1% |
| 2017 | −388.9% | −564.2% | −556.8% |
| 2018 | −10,495.1% | −16,634.0% | −16,297.9% |
| 2019 | −6,145.2% | −10,527.9% | −9,542.6% |
| 2020 | −8,678.9% | −13,216.2% | −13,029.8% |
| 2021 | 100.0% | 35.9% | 33.4% |
| 2022 | 100.0% | −244.1% | −217.0% |
| 2023 | 100.0% | −209.1% | −160.9% |
| 2024 | 100.0% | −114.4% | −90.5% |
| 2025 | 61.8% | −1,905.8% | −2,520.6% |
Returns on capital
- ROE
- ROIC
- ROA
Figures as a table
| Year | ROE | ROIC | ROA |
|---|---|---|---|
| 2010 | −100.0% | no data | −100.0% |
| 2011 | 200.0% | no data | −100.0% |
| 2012 | −32.7% | −53.3% | −32.0% |
| 2013 | −23.7% | −21.1% | −22.5% |
| 2014 | −2.5% | −2.2% | −2.4% |
| 2015 | −22.4% | −19.3% | −20.9% |
| 2016 | −43.8% | −32.2% | −34.8% |
| 2017 | −37.6% | −27.9% | −30.9% |
| 2018 | −48.2% | −26.6% | −31.2% |
| 2019 | −28.5% | −15.3% | −18.5% |
| 2020 | −60.4% | −25.1% | −33.4% |
| 2021 | 14.4% | 15.2% | 11.0% |
| 2022 | −18.8% | −16.2% | −15.4% |
| 2023 | −26.2% | −22.4% | −21.1% |
| 2024 | −25.1% | −21.5% | −22.4% |
| 2025 | −87.0% | −37.0% | −74.7% |
Data status and sources
- Score
- Daily value of 13 Nov 2026, recalculated nightly
- Price
- Closing price of 12 Nov 2026
- Latest annual report
- Fiscal year 2025, period end 31 Dec 2025
- Source
- Financial statements, ratios and prices from Financial Modeling Prep (FMP), based on the company's reports. MEQIRI calculates the score and fair value from them.
Mandatory disclosures for this rating
- ; time horizon around 12 months
- Rated Weak, published since 7 Nov 2026 (in the score history since 31 Aug 2022)
- End-of-day prices, metrics cached for up to 24 hours
- Score and fair value are estimates from a disclosed model. They are not facts and not a price target.
- Produced by SSM Ventures UG (haftungsbeschränkt), responsible person Sven Brostmeyer, Managing Director, automatically according to the disclosed model.
- Not investment advice. Losses up to and including a total loss are possible. Personal circumstances are not considered.