Prothena Corp. Plc (PRTA)
Prothena Market Cap : 556.05M for April 1, 2026
Market Cap Chart
Historical Data
Market Capitalization Definition
Market Capitalization measures the total value of a company based on their stock price multiplied by the shares outstanding. This metric is important because it gives you an idea of the size of a company, and how the size has changed over time. When studying companies from a relative basis, it would make sense to compare companies that have a similar market capitalization because factors like market share, economies of scale, and business models would also be similar.
Market Cap Range, Past 5 Years
Market Cap Benchmarks
| Novo Nordisk A/S | 161.91B |
| Jazz Pharmaceuticals Plc | 11.54B |
| Amarin Corp. Plc | 304.36M |
| Iterum Therapeutics Plc | 2.228M |
| GH Research Plc | 962.43M |
Market Cap Related Metrics
| PS Ratio | 57.42 |
| PEG Ratio | -0.0235 |
| Price to Book Value | 1.983 |
| Price | 10.03 |
| Earnings Yield | -43.90% |
| PEGY Ratio | -0.0235 |