Beta:
0.63-0.06(-8.70%)Summary
- As of today, the beta for PRTA stock is 0.63, with the most recent change of -0.06 (-8.70%) on November 17, 2025. This indicates that PRTA stock is less volatile than S&P 500 index
Performance
PRTA Beta Chart
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Range
PRTA Beta Trends
| PeriodPeriod | BetaBeta | PricePrice | SPXSPX |
|---|---|---|---|
| 1D1 Day | -8.7% | -1.8% | -1.2% |
| 1M1 Month | -12.5% | +1.5% | -1.0% |
| 3M3 Months | -16.0% | +18.1% | +2.3% |
| 6M6 Months | -27.6% | +40.3% | +10.7% |
| YTDYTD | -62.0% | -27.3% | +12.1% |
| 1Y1 Year | -59.9% | -25.5% | +11.9% |
| 5Y5 Years | -26.7% | -16.9% | +84.8% |
PRTA Beta Highs & Lows
| PeriodPeriod | HighHigh | Current vs Highvs High | LowLow | Current vs Lowvs Low | |
|---|---|---|---|---|---|
| 1M | 1-Month | 0.74 | -14.9% | 0.63 | at low |
| 3M | 3-Month | 0.75 | -16.0% | 0.63 | at low |
| 6M | 6-Month | 0.90 | -30.0% | 0.63 | at low |
| 1Y | 1-Year | 1.92 | -67.2% | 0.63 | at low |
| 3Y | 3-Year | 1.99 | -68.3% | 0.63 | at low |
| 5Y | 5-Year | 2.17 | -71.0% | 0.63 | at low |
| All-Time | All-Time | 8.40 | -92.5% | -50.55 | +101.2% |
PRTA Beta History
| Date | Value |
|---|---|
| 2025 | 0.63(-62.0%) |
| 2024 | 1.66(+20.3%) |
| 2023 | 1.38(-29.6%) |
| 2022 | 1.96(+27.3%) |
| 2021 | 1.54(+83.3%) |
| 2020 | 0.84(-43.2%) |
| 2019 | 1.48(-19.6%) |
| Date | Value |
|---|---|
| 2018 | 1.84(-23.3%) |
| 2017 | 2.40(-7.0%) |
| 2016 | 2.58(+59.3%) |
| 2015 | 1.62(-27.0%) |
| 2014 | 2.22(+289.5%) |
| 2013 | 0.57(-81.7%) |
| 2012 | 3.11 |
FAQ
- What is Prothena Corporation plc beta?
- What is the all-time high beta for Prothena Corporation plc?
- What is PRTA beta year-to-date change?
- What is Prothena Corporation plc beta year-on-year change?
What is Prothena Corporation plc beta?
The current beta of PRTA is 0.63
What is the all-time high beta for Prothena Corporation plc?
Prothena Corporation plc all-time high beta is 8.40
What is PRTA beta year-to-date change?
Prothena Corporation plc beta has changed by -1.03 (-62.05%) since the beginning of the year
What is Prothena Corporation plc beta year-on-year change?
Over the past year, PRTA beta has changed by -0.94 (-59.87%)