Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
11.51
+0.72 (6.67%)
At close: Apr 28, 2026, 4:00 PM EDT
11.73
+0.22 (1.91%)
After-hours: Apr 28, 2026, 7:04 PM EDT
Prothena Corporation Ratios and Metrics
Market cap in millions USD. Fiscal year is January - December.
Millions USD. Fiscal year is Jan - Dec.
| Current | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 |
| Apr '26 Apr 28, 2026 | Dec '25 Dec 31, 2025 | Dec '24 Dec 31, 2024 | Dec '23 Dec 31, 2023 | Dec '22 Dec 31, 2022 | Dec '21 Dec 31, 2021 |
| Market Capitalization | 620 | 514 | 745 | 1,950 | 3,111 | 2,302 | |
| Market Cap Growth | 18.79% | -31.02% | -61.79% | -37.30% | 35.14% | 380.07% | |
| Enterprise Value | 320 | 192 | 237 | 1,290 | 2,623 | 1,715 | |
| Last Close Price | 11.51 | 9.55 | 13.85 | 36.34 | 60.25 | 49.40 | |
| PE Ratio | - | - | - | - | - | 34.37 | |
| Forward PE | 46.66 | 88.34 | - | - | - | - | |
| PS Ratio | 63.98 | 53.09 | 5.51 | 21.34 | 57.70 | 11.48 | |
| PB Ratio | 2.21 | 1.83 | 1.53 | 3.47 | 5.00 | 4.94 | |
| P/TBV Ratio | 2.21 | 1.83 | 1.53 | 3.47 | 5.00 | 4.94 | |
| P/FCF Ratio | - | - | - | - | - | 25.01 | |
| P/OCF Ratio | - | - | - | - | - | 24.86 | |
| EV/Sales Ratio | 33.09 | 19.86 | 1.76 | 14.12 | 48.66 | 8.55 | |
| EV/EBITDA Ratio | - | - | - | - | - | 23.47 | |
| EV/EBIT Ratio | - | - | - | - | - | 23.83 | |
| EV/FCF Ratio | - | - | - | - | - | 18.64 | |
| Debt / Equity Ratio | 0.03 | 0.03 | 0.02 | 0.02 | 0.01 | 0.03 | |
| Debt / EBITDA Ratio | - | - | - | - | - | 0.16 | |
| Debt / FCF Ratio | - | - | - | - | - | 0.13 | |
| Net Debt / Equity Ratio | -1.07 | -1.07 | -0.95 | -1.08 | -1.13 | -1.22 | |
| Net Debt / EBITDA Ratio | 1.63 | 1.63 | 3.00 | 3.19 | 5.38 | -7.75 | |
| Net Debt / FCF Ratio | 1.83 | 1.83 | 3.06 | 4.44 | 6.44 | -6.16 | |
| Asset Turnover | 0.02 | 0.02 | 0.22 | 0.13 | 0.08 | 0.43 | |
| Quick Ratio | 7.53 | 7.53 | 9.72 | 10.97 | 14.17 | 17.31 | |
| Current Ratio | 7.72 | 7.72 | 10.01 | 11.24 | 14.34 | 17.48 | |
| Return on Equity (ROE) | -63.62% | -63.62% | -23.34% | -24.85% | -21.50% | 20.61% | |
| Return on Assets (ROA) | -26.40% | -26.40% | -15.54% | -16.42% | -12.03% | 9.55% | |
| Return on Invested Capital (ROIC) | - | -4795.64% | - | - | - | - | |
| Return on Capital Employed (ROCE) | -64.50% | -64.50% | -31.00% | -29.90% | -18.60% | 12.50% | |
| Earnings Yield | -39.39% | -47.48% | -16.41% | -7.54% | -3.76% | 2.91% | |
| FCF Yield | -26.42% | -31.85% | -20.17% | -7.01% | -3.51% | 4.00% | |
| Buyback Yield / Dilution | -0.11% | -0.11% | -1.04% | -12.34% | 2.26% | -21.42% | |
Source: S&P Capital IQ. Standard template.
Financial Sources.