Profitability
Weight: 20%
F
0
- 5yr Avg ROIC -20.1%
- Operating Margin Trend -375.37 pp/yr
PRTA
Prothena Corporation plc
AlphaQuality composite grade, weighted for stable earnings power businesses.
⚠ 4 of the last 5 fiscal years showed negative net income — AlphaQuality will not grade above F for persistent unprofitability in a stable earnings power business.
Grade overrides the 30.0 pillar composite — hard gates always win.
Capital Efficiency
Weight: 15%
F
0
- 5yr Avg ROE -28.6%
- 5yr Share-Count CAGR 6.2%
Growth Quality
Weight: 15%
A
88
- 5yr Revenue CAGR 62.6%
- Revenue-Growth Years (5) 3/5
Cash Generation
Weight: 15%
D+
42
- 5yr FCF Margin -421.7%
- 5yr FCF/NI Conversion 1.37x
Balance Sheet
Weight: 20%
D-
30
- Net Debt / EBITDA 10.00x
- Interest Coverage (EBIT/Int) 30.00x
- Altman Z-Score -0.35
Stability
Weight: 15%
D
33
- Negative-Revenue Years (5) 2/5
- Piotroski F-Score 1
Guru Flow
Curated superinvestor sentiment — not part of the AlphaQuality grade.1 of 2 gurus held; 1 trimmed; 1 full exit.
- Holders
- 1 -1
- Avg Δ position
- -8.6%
- New buys
- 0
- Full exits
- 1