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Prothena Corp (PRTA)

Prothena Corp (PRTA)
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Fundamentals

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  • Market Capitalization, $K 484,789
  • Shares Outstanding, K 52,353
  • Annual Sales, $ 9,680 K
  • Annual Income, $ -244,090 K
  • EBIT $ -56 M
  • EBITDA $ -52 M
  • 60-Month Beta -0.30
  • Price/Sales 49.84
  • Price/Cash Flow N/A
  • Price/Book 1.68

Options Overview Details

View History
  • Implied Volatility 62.44% (+3.76%)
  • Historical Volatility 35.11%
  • IV Percentile 16%
  • IV Rank 5.27%
  • IV High 339.95% on 11/19/25
  • IV Low 47.00% on 12/17/25
  • Expected Move (DTE 8) 0.00 (0.00%)
  • Put/Call Vol Ratio 0.00
  • Today's Volume 17
  • Volume Avg (30-Day) 208
  • Put/Call OI Ratio 0.56
  • Today's Open Interest 16,726
  • Open Int (30-Day) 16,253
  • Expected Range 9.13 to 9.13

Analyst Rating / Earnings Estimates

Current Rating
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Moderate Buy
Based on 7 analysts offering recommendations.
Earnings Estimates - Current Qtr 09/30/26
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  • Average Estimate $-0.38
  • Number of Estimates 2
  • High Estimate $-0.38
  • Low Estimate $-0.38
  • Prior Year $-0.67
  • Growth Rate Est. (year over year) +43.28%

Price Performance

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Period Period Low Period High Performance
1-Month
8.00 +13.50%
on 07/31/26
9.36 -3.04%
on 08/13/26
+0.25 (+2.83%)
since 07/13/26
3-Month
7.73 +17.46%
on 06/11/26
10.26 -11.50%
on 05/27/26
-0.52 (-5.42%)
since 05/13/26
52-Week
7.73 +17.46%
on 06/11/26
11.80 -23.05%
on 05/08/26
+1.03 (+12.80%)
since 08/13/25

Most Recent Stories

More News
Prothena: Q2 Earnings Snapshot

Prothena: Q2 Earnings Snapshot

PRTA : 9.08 (-1.94%)
Prothena Reports Second Quarter 2026 Financial Results and Business Highlights

Net cash used in operating and investing activities was $25.7 million in the second quarter and net cash provided by operating and investing activities was $3.2 million for the first six months of 2026;...

PRTA : 9.08 (-1.94%)
Prothena's Collaboration Revenue Could Finally Quiet the Cash Burn Narrative Tomorrow

Barchart Research What to Expect from PRTA Earnings PRTA Generated August 5, 2026 Current Price $8.49 EPS Estimate $$-0.39 Consensus Rating Moderate Buy Average Move 2.61% Prothena's Collaboration Revenue...

PRTA : 9.08 (-1.94%)
Prothena's Pipeline Credibility Hinges on Whether Milestone Revenue Repeats or Vanishes

Barchart Research What to Expect from PRTA Earnings PRTA Generated July 31, 2026 Current Price $8.12 EPS Estimate $$-0.39 Consensus Rating Moderate Buy Average Move 2.61% Prothena's Pipeline Credibility...

PRTA : 9.08 (-1.94%)
Prothena to Report Second Quarter 2026 Financial Results on August 6

Prothena Corporation plc (NASDAQ:PRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today announced that...

PRTA : 9.08 (-1.94%)
Prothena: Q1 Earnings Snapshot

Prothena: Q1 Earnings Snapshot

PRTA : 9.08 (-1.94%)
Prothena Reports First Quarter 2026 Financial Results and Business Highlights

Net cash provided by operating and investing activities was $28.9 million for the first quarter of 2026; quarter-end cash and restricted cash position was $330.3 million Prothena updates...

PRTA : 9.08 (-1.94%)
Prothena: Can Partners Carry the Narrative Through Another Year Without Internal Catalysts?

Barchart Research What to Expect from PRTA Earnings PRTA Generated May 6, 2026 Current Price $11.18 EPS Estimate $$-0.31 Consensus Rating Moderate Buy Average Move 2.81% Prothena: Can Partners Carry the...

PRTA : 9.08 (-1.94%)
Prothena to Report First Quarter 2026 Financial Results on May 7

Prothena Corporation plc (NASDAQ:PRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today announced that...

PRTA : 9.08 (-1.94%)
Prothena Announces Novo Nordisk Obtains Fast Track Designation from the U.S. FDA for Coramitug (PRX004) in ATTR Amyloidosis with Cardiomyopathy

Coramitug is a potential best-in-class amyloid depleter antibody for the treatment of ATTR amyloidosis with cardiomyopathy 1-3 Coramitug is being evaluated by...

PRTA : 9.08 (-1.94%)

Business Summary

Prothena Corp. plc, being a clinical-stage neuroscience company, focused on the development of novel therapeutic therapies for life-threatening diseases. Its wholly owned programs include birtamimab for the potential treatment of AL amyloidosis, PRX004 for the potential treatment of ATTR amyloidosis...

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Key Turning Points

3rd Resistance Point 9.57
2nd Resistance Point 9.44
1st Resistance Point 9.35
Last Price 9.08
1st Support Level 9.13
2nd Support Level 9.00
3rd Support Level 8.91

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52-Week High 11.80
Fibonacci 61.8% 10.25
Fibonacci 50% 9.77
Fibonacci 38.2% 9.28
Last Price 9.08
52-Week Low 7.73

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