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Based on recent data, Prothena Corporation plc (PRTA) shows an Average True Range (ATR) of 0.44 and an Enterprise Value of 496.15M. Its average trading volume over the past 3 months is 614.81K, indicating liquidity. These fundamental metrics provide insight into PRTA's underlying financial health and market activity.
| ATR | 0.44 |
| Enterprise Value | 496.15M |
| Avg Vol (3 Months) | 614.81K |
| Avg Vol (10 Days) | 592.94K |
Prothena Corporation plc (PRTA) technical indicators as of January 21, 2026: the SMA 20 is -0.29%, SMA 50 at -6.66%, and SMA 200 at 9.18%. The RSI 14 value is 45.65, suggesting its current momentum. These technical analysis signals help assess PRTA's price trends and potential future movements.
| SMA 20 | -0.29% |
| SMA 50 | -6.66% |
| SMA 200 | 9.18% |
| RSI 14 | 45.65 |
Prothena Corporation plc (PRTA) stock performance overview as of January 21, 2026: The 52-week high is $16.67 (currently -44.49% below), and the 52-week low is $4.32 (currently 114.12% above). Over the past year, PRTA's performance is -29.82%, compared to the S&P 500's 9.18% change.
| 52-Week High | 16.67 |
| 52-Week High Chg | -44.49% |
| 52-Week Low | 4.32 |
| 52-Week Low Chg | +114.12% |
| S&P 500 52-Week Chg | 9.18% |
According to market data, Prothena Corporation plc (PRTA) stock's recent performance metrics show that over the last month, PRTA is -1.91%, with a Year-to-Date (YTD) performance of -3.14%. Over the past year, the stock has seen a -29.82% change. These figures summarize PRTA's price movements across various periods, reflecting its historical returns.
| Period | 1 Week | 1 Month | Quarter | Half Year | 1 Year | YTD |
|---|---|---|---|---|---|---|
| High | 9.55 | 9.91 | 11.69 | 11.69 | 16.67 | 9.69 |
| Low | 8.77 | 8.65 | 8.65 | 6.24 | 4.32 | 8.65 |
| Performance | +3.82% | -1.91% | -6.75% | +47.06% | -29.82% | -3.14% |
According to current financial data, PRTA stock's P/E (TTM) ratio is -1.80, which compares to the S&P 500's P/E of 32.59. The sector median P/E is -1.23. Key valuation ratios for PRTA, including P/S (42.86), P/B (1.71), and P/FCF (-2.68), offer insights into how the company is valued relative to its earnings, sales, book value, and free cash flow.
| Valuation | PRTA | Sector Median | Industry Avg | S&P 500 |
|---|---|---|---|---|
| P/E (TTM) | -1.8 | -1.23 | -5.15 | 32.59 |
| P/S (TTM) | 42.86 | 3.71 | 465.3 | 5.98 |
| P/B (TTM) | 1.71 | -0.77 | 9.35 | 5.66 |
| P/FCF (TTM) | -2.68 | -8.3 | -348.58 | 33.18 |