10-Day
31.57%
Summary
- Current Value
- As of today, PRTA 10-day volatility is 31.57%, down -2.65% on
- Value Category
- Based on its current 10-day historical volatility, PRTA falls into the moderate volatility category
- 1-Year High
- PRTA 10-day volatility reached a 1-year high of 167.04% on
- 1-Year Low
- PRTA 10-day volatility reached a 1-year low of 20.88% on
10-Day Volatility Chart
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Series
SUGGESTED SERIES
Performance
| Metric | Date | Value | 1D | 1M | 3M | YTD | 1Y | 3Y | 5Y |
|---|---|---|---|---|---|---|---|---|---|
| 10-Day Volatility | 31.57% | -2.6% | -41.5% | +33.3% | -23.6% | -51.9% | -50.9% | -13.9% | |
| 1-Month Volatility | 42.55% | -1.7% | -18.3% | -9.7% | -16.7% | -71.4% | -31.9% | -35.3% | |
| 3-Month Volatility | 47.55% | -0.3% | -2.6% | +1.9% | +0.4% | -54.5% | -26.6% | -29.8% | |
| 1-Year Volatility | 62.37% | +0.0% | -16.1% | -19.8% | -0.9% | -14.5% | -43.5% | -10.7% | |
| 14-Day RSI | 39.28 | -2.7% | -27.3% | -50.6% | -11.7% | -18.0% | -6.0% | -29.3% | |
| Beta | 0.56 | +3.7% | -9.7% | -20.0% | +1.8% | -65.2% | -71.3% | -33.3% | |
| ATR | $0.44 | -4.0% | -24.7% | +2.9% | -6.7% | -63.9% | -86.6% | -29.0% | |
| Price | $9.05 | -0.9% | -15.7% | -12.6% | -5.2% | -36.1% | -83.1% | -29.4% | |
| 200-Day SMA | $8.59 | -0.3% | -5.4% | -13.5% | -1.1% | -56.1% | -78.5% | -26.3% | |
| 50-Day SMA | $10.10 | -0.3% | -2.1% | +19.6% | -0.9% | -33.7% | -82.8% | -16.9% |
10-Day Volatility History
FAQ
What is the current 10-day volatility of PRTA?
As of today, PRTA 10-day volatility is 31.57%
What 10-day volatility category does PRTA fall into?
Based on its current 10-day historical volatility, PRTA falls into the moderate volatility category
What is PRTA 10-day volatility 1-year high?
PRTA 10-day volatility reached a 1-year high of 167.04% on June 6, 2025
What is PRTA 10-day volatility 1-year low?
PRTA 10-day volatility reached a 1-year low of 20.88% on September 19, 2025
1-Month
42.55%
Summary
- Current Value
- As of today, PRTA 1-month volatility is 42.55%, down -1.71% on
- Value Category
- Based on its current 1-month historical volatility, PRTA falls into the high volatility category
- 1-Year High
- PRTA 1-month volatility reached a 1-year high of 163.61% on
- 1-Year Low
- PRTA 1-month volatility reached a 1-year low of 32.43% on
Performance
| Metric | Date | Value | 1D | 1M | 3M | YTD | 1Y | 3Y | 5Y |
|---|---|---|---|---|---|---|---|---|---|
| 1-Month Volatility | 42.55% | -1.7% | -18.3% | -9.7% | -16.7% | -71.4% | -31.9% | -35.3% | |
| 10-Day Volatility | 31.57% | -2.6% | -41.5% | +33.3% | -23.6% | -51.9% | -50.9% | -13.9% | |
| 3-Month Volatility | 47.55% | -0.3% | -2.6% | +1.9% | +0.4% | -54.5% | -26.6% | -29.8% | |
| 1-Year Volatility | 62.37% | +0.0% | -16.1% | -19.8% | -0.9% | -14.5% | -43.5% | -10.7% | |
| 14-Day RSI | 39.28 | -2.7% | -27.3% | -50.6% | -11.7% | -18.0% | -6.0% | -29.3% | |
| Beta | 0.56 | +3.7% | -9.7% | -20.0% | +1.8% | -65.2% | -71.3% | -33.3% | |
| ATR | $0.44 | -4.0% | -24.7% | +2.9% | -6.7% | -63.9% | -86.6% | -29.0% | |
| Price | $9.05 | -0.9% | -15.7% | -12.6% | -5.2% | -36.1% | -83.1% | -29.4% | |
| 200-Day SMA | $8.59 | -0.3% | -5.4% | -13.5% | -1.1% | -56.1% | -78.5% | -26.3% | |
| 50-Day SMA | $10.10 | -0.3% | -2.1% | +19.6% | -0.9% | -33.7% | -82.8% | -16.9% |
1-Month Volatility History
FAQ
What is the current 1-month volatility of PRTA?
As of today, PRTA 1-month volatility is 42.55%
What 1-month volatility category does PRTA fall into?
Based on its current 1-month historical volatility, PRTA falls into the high volatility category
What is PRTA 1-month volatility 1-year high?
PRTA 1-month volatility reached a 1-year high of 163.61% on January 12, 2025
What is PRTA 1-month volatility 1-year low?
PRTA 1-month volatility reached a 1-year low of 32.43% on September 18, 2025
3-Month
47.55%
Summary
- Current Value
- As of today, PRTA 3-month volatility is 47.55%, down -0.29% on
- Value Category
- Based on its current 3-month historical volatility, PRTA falls into the high volatility category
- 1-Year High
- PRTA 3-month volatility reached a 1-year high of 109.33% on
- 1-Year Low
- PRTA 3-month volatility reached a 1-year low of 41.96% on
Performance
| Metric | Date | Value | 1D | 1M | 3M | YTD | 1Y | 3Y | 5Y |
|---|---|---|---|---|---|---|---|---|---|
| 3-Month Volatility | 47.55% | -0.3% | -2.6% | +1.9% | +0.4% | -54.5% | -26.6% | -29.8% | |
| 10-Day Volatility | 31.57% | -2.6% | -41.5% | +33.3% | -23.6% | -51.9% | -50.9% | -13.9% | |
| 1-Month Volatility | 42.55% | -1.7% | -18.3% | -9.7% | -16.7% | -71.4% | -31.9% | -35.3% | |
| 1-Year Volatility | 62.37% | +0.0% | -16.1% | -19.8% | -0.9% | -14.5% | -43.5% | -10.7% | |
| 14-Day RSI | 39.28 | -2.7% | -27.3% | -50.6% | -11.7% | -18.0% | -6.0% | -29.3% | |
| Beta | 0.56 | +3.7% | -9.7% | -20.0% | +1.8% | -65.2% | -71.3% | -33.3% | |
| ATR | $0.44 | -4.0% | -24.7% | +2.9% | -6.7% | -63.9% | -86.6% | -29.0% | |
| Price | $9.05 | -0.9% | -15.7% | -12.6% | -5.2% | -36.1% | -83.1% | -29.4% | |
| 200-Day SMA | $8.59 | -0.3% | -5.4% | -13.5% | -1.1% | -56.1% | -78.5% | -26.3% | |
| 50-Day SMA | $10.10 | -0.3% | -2.1% | +19.6% | -0.9% | -33.7% | -82.8% | -16.9% |
3-Month Volatility History
FAQ
What is the current 3-month volatility of PRTA?
As of today, PRTA 3-month volatility is 47.55%
What 3-month volatility category does PRTA fall into?
Based on its current 3-month historical volatility, PRTA falls into the high volatility category
What is PRTA 3-month volatility 1-year high?
PRTA 3-month volatility reached a 1-year high of 109.33% on January 25, 2025
What is PRTA 3-month volatility 1-year low?
PRTA 3-month volatility reached a 1-year low of 41.96% on September 23, 2025
1-Year
62.37%
Summary
- Current Value
- As of today, PRTA 1-year volatility is 62.37%, up +0.02% on
- Value Category
- Based on its current 1-year historical volatility, PRTA falls into the extreme volatility category
- 1-Year High
- PRTA 1-year volatility reached a 1-year high of 79.66% on
- 1-Year Low
- PRTA 1-year volatility reached a 1-year low of 62.36% on
Performance
| Metric | Date | Value | 1D | 1M | 3M | YTD | 1Y | 3Y | 5Y |
|---|---|---|---|---|---|---|---|---|---|
| 1-Year Volatility | 62.37% | +0.0% | -16.1% | -19.8% | -0.9% | -14.5% | -43.5% | -10.7% | |
| 10-Day Volatility | 31.57% | -2.6% | -41.5% | +33.3% | -23.6% | -51.9% | -50.9% | -13.9% | |
| 1-Month Volatility | 42.55% | -1.7% | -18.3% | -9.7% | -16.7% | -71.4% | -31.9% | -35.3% | |
| 3-Month Volatility | 47.55% | -0.3% | -2.6% | +1.9% | +0.4% | -54.5% | -26.6% | -29.8% | |
| 1-Year Volatility | 62.37% | +0.0% | -16.1% | -19.8% | -0.9% | -14.5% | -43.5% | -10.7% | |
| 14-Day RSI | 39.28 | -2.7% | -27.3% | -50.6% | -11.7% | -18.0% | -6.0% | -29.3% | |
| Beta | 0.56 | +3.7% | -9.7% | -20.0% | +1.8% | -65.2% | -71.3% | -33.3% | |
| ATR | $0.44 | -4.0% | -24.7% | +2.9% | -6.7% | -63.9% | -86.6% | -29.0% | |
| Price | $9.05 | -0.9% | -15.7% | -12.6% | -5.2% | -36.1% | -83.1% | -29.4% | |
| 200-Day SMA | $8.59 | -0.3% | -5.4% | -13.5% | -1.1% | -56.1% | -78.5% | -26.3% | |
| 50-Day SMA | $10.10 | -0.3% | -2.1% | +19.6% | -0.9% | -33.7% | -82.8% | -16.9% |
1-Year Volatility History
FAQ
What is the current 1-year volatility of PRTA?
As of today, PRTA 1-year volatility is 62.37%
What 1-year volatility category does PRTA fall into?
Based on its current 1-year historical volatility, PRTA falls into the extreme volatility category
What is PRTA 1-year volatility 1-year high?
PRTA 1-year volatility reached a 1-year high of 79.66% on September 24, 2025
What is PRTA 1-year volatility 1-year low?
PRTA 1-year volatility reached a 1-year low of 62.36% on January 7, 2026
Data Sources & References
- PRTA Official Website www.prothena.com
- Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/1559053/000155905325000044/0001559053-25-000044-index.htm
- Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1559053/000155905325000009/0001559053-25-000009-index.htm
- PRTA Profile on Yahoo Finance finance.yahoo.com/quote/PRTA
- PRTA Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/prta