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PRTA

Prothena Corporation plc

Healthcare · USD

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Price alert · PRTA

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8.47 USD -0.41 -4.62%
As of Oct 30, 2026 Extended hours 8.47 0.00%
Bid
8.48 × 2
Ask
8.49 × 2
8.35 Day range 8.90
7.91 52-week range 11.51
YTD
-11.31%
1 year
-19.18%
Open
8.79
Prev close
8.88
Mkt cap
434.82M
Vol
452.30K
Avg vol
472.70K
EPS
-0.82
P/E
0.00
Div yield
0.00%
More statistics
Low
8.35
High
8.90
Forward P/E
-3.57
Beta
0.16
Short ratio
17.35
Inst. own
96.97%
Dividend
0.00
Ex-div date
50-d avg
15.72
200-d avg
20.26
1y target
49.75

1Y chart

Closing price and volume

PRTA one-year price chart7.738.759.7710.811.8Oct 25Jan 26Mar 26Jun 26Aug 26Oct 26

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MetricPRTASPYQQQ
Last price8.47755.72690.49
Change-0.41-13.64-24.85
Change %-4.62%-1.77%-3.47%
Open8.79761.38697.13
Day high8.90761.46698.63
Day low8.35750.36683.45
Previous close8.88769.36715.34
Volume452.30K77.70M85.24M
Average volume472.70K41.22M34.57M
Market cap434.82M812.08B483.28B
P/E ratio0.0023.9926.44
Earnings per share-0.8231.5026.12
Dividend yield0.000.000.00
52-week high11.51779.09759.66
52-week low7.91631.97558.28
1-week return+3.29%-0.559233%-1.97%
1-month return+1.07%-0.906075%-6.66%
3-month return+0.713436%+1.89%+1.02%
6-month return-23.42%+5.16%+3.41%
Year-to-date return-11.31%+10.82%+12.40%
1-year return-19.18%+11.16%+10.29%
2-year return-50.18%+32.90%+42.71%
50-day moving average8.77767.63725.41
200-day moving average9.24728.53679.17
Target price49.75——
Beta0.1580.000.00
Short ratio17.35——
Institutional ownership96.97%——
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