Prothena Corporation plc PRTA
Full chart
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8.23 USD -0.50 (-5.73%)
At closeNov 12, 2026, 4:01 PM EST
8.23 0.00 0.00%
After hours · Nov 12, 4:01 PM ET
8.22 Day range 8.70
7.73 52-week range 11.80
- YTD
- -13.82%
- 1 year
- -24.15%
1Y chart
Chart tools
Signals (71)
| Name | Date | Ago |
|---|---|---|
| SMA: Bearish | Nov 12, 2026 | 15 hours ago |
| SMA: Bullish | Nov 11, 2026 | 1 day ago |
| SMA: Bearish | Nov 10, 2026 | 2 days ago |
| MACD: Buy Signal | Nov 10, 2026 | 2 days ago |
| SMA: Bullish | Nov 9, 2026 | 3 days ago |
| MACD: Sell Signal | Nov 5, 2026 | 1 week ago |
| SMA: Bearish | Oct 30, 2026 | 1 week ago |
| SMA: Bullish | Oct 27, 2026 | 2 weeks ago |
| MACD: Buy Signal | Oct 26, 2026 | 2 weeks ago |
| MACD: Sell Signal | Oct 21, 2026 | 3 weeks ago |
| MACD: Buy Signal | Oct 8, 2026 | 1 month ago |
| SMA: Bearish | Sep 23, 2026 | 1 month ago |
| SMA: Bullish | Sep 22, 2026 | 1 month ago |
| SMA: Bearish | Sep 10, 2026 | 2 months ago |
| MACD: Sell Signal | Sep 10, 2026 | 2 months ago |
| SMA: Bearish | Sep 9, 2026 | 2 months ago |
| SMA: Bullish | Sep 1, 2026 | 2 months ago |
| SMA: Bullish | Aug 19, 2026 | 2 months ago |
| SMA: Bearish | Aug 14, 2026 | 3 months ago |
| SMA: Bullish | Aug 10, 2026 | 3 months ago |
Newest 20 of 71.
Compare PRTA
Chart and line up PRTA against other symbols or a saved comparison set.
- PRTA Prothena Corporation plc
8.23
-0.50 -5.73%
- ALKS Alkermes plc
46.98
-0.91 -1.90%
- ALNY Alnylam Pharmaceuticals, Inc.
156.65
-3.20 -2.00%
- AMRN Amarin Corporation plc
11.67
-0.04 -0.34%
Sign in to keep these symbols in a saved comparison set.
| Metric | PRTA | ALKS | ALNY | AMRN |
|---|---|---|---|---|
| Last price | 8.23 | 46.98 | 156.65 | 11.67 |
| Change | -0.50 | -0.91 | -3.20 | -0.04 |
| Change % | -5.73% | -1.90% | -2.00% | -0.341588% |
| Open | 8.70 | 46.00 | 160.16 | 11.64 |
| Day high | 8.70 | 48.30 | 162.77 | 11.71 |
| Day low | 8.22 | 45.27 | 156.59 | 11.41 |
| Previous close | 8.73 | 47.89 | 159.85 | 11.71 |
| Volume | 237.03K | 3.12M | 3.51M | 60.12K |
| Average volume | 467.47K | 1.87M | 1.98M | 74.74K |
| Market cap | 422.61M | 7.89B | 20.98B | 490.63M |
| P/E ratio | 0.00 | 0.00 | 7.91 | 0.00 |
| Earnings per share | -0.42 | -0.01 | 19.80 | -0.80 |
| Dividend yield | 0.00 | 0.00 | 0.00 | 0.00 |
| 52-week high | 11.80 | 55.67 | 479.79 | 17.31 |
| 52-week low | 7.73 | 27.00 | 149.18 | 11.25 |
| 1-week return | +4.31% | +5.48% | -0.006383% | +0.777202% |
| 1-month return | -2.37% | +16.69% | -31.00% | +1.21% |
| 3-month return | -11.12% | -6.56% | -30.05% | -17.00% |
| 6-month return | -12.73% | +22.70% | -46.36% | -21.94% |
| Year-to-date return | -13.82% | +67.91% | -60.61% | -16.40% |
| 1-year return | -24.15% | +49.57% | -65.40% | -28.01% |
| 2-year return | -52.59% | +60.73% | -41.75% | +6.09% |
| 50-day moving average | 8.60 | 43.68 | 223.45 | 12.62 |
| 200-day moving average | 9.18 | 41.00 | 277.36 | 14.16 |
| Target price | 49.75 | 57.74 | 299.96 | 1.00 |
| Beta | 0.158 | 0.234 | 0.441 | 1.93 |
| Short ratio | 17.35 | 10.00 | 2.61 | 12.75 |
| Institutional ownership | 96.97% | 108.84% | 101.66% | 17.05% |