Prothena Corp. Plc (PRTA)
8.155
-0.08
(-0.91%)
USD |
NASDAQ |
Nov 13, 16:00
8.155
0.00 (0.00%)
After-Hours: 19:59
Prothena Market Cap : 418.69M for Nov. 13, 2026
Market Cap Chart
Historical Market Cap Data
| Date | Value |
|---|---|
| November 12, 2026 | 422.54M |
| November 11, 2026 | 448.21M |
| November 10, 2026 | 439.48M |
| November 09, 2026 | 450.52M |
| November 06, 2026 | 409.19M |
| November 05, 2026 | 405.08M |
| November 04, 2026 | 430.75M |
| November 03, 2026 | 421.51M |
| November 02, 2026 | 428.96M |
| October 30, 2026 | 438.27M |
| October 29, 2026 | 459.49M |
| October 28, 2026 | 470.87M |
| October 27, 2026 | 455.87M |
| October 26, 2026 | 434.65M |
| October 23, 2026 | 424.30M |
| October 22, 2026 | 426.89M |
| October 21, 2026 | 415.51M |
| October 20, 2026 | 439.83M |
| October 19, 2026 | 438.79M |
| October 16, 2026 | 432.06M |
| October 15, 2026 | 439.83M |
| October 14, 2026 | 433.10M |
| October 13, 2026 | 432.58M |
| October 12, 2026 | 436.20M |
| October 09, 2026 | 457.42M |
| Date | Value |
|---|---|
| October 08, 2026 | 445.52M |
| October 07, 2026 | 438.79M |
| October 06, 2026 | 414.99M |
| October 05, 2026 | 427.93M |
| October 02, 2026 | 432.58M |
| October 01, 2026 | 441.90M |
| September 30, 2026 | 433.62M |
| September 29, 2026 | 454.32M |
| September 28, 2026 | 451.21M |
| September 25, 2026 | 428.96M |
| September 24, 2026 | 430.51M |
| September 23, 2026 | 449.14M |
| September 22, 2026 | 465.18M |
| September 21, 2026 | 440.34M |
| September 18, 2026 | 443.97M |
| September 17, 2026 | 437.76M |
| September 16, 2026 | 426.37M |
| September 15, 2026 | 431.03M |
| September 14, 2026 | 458.45M |
| September 11, 2026 | 462.08M |
| September 10, 2026 | 466.73M |
| September 09, 2026 | 481.22M |
| September 08, 2026 | 493.64M |
| September 04, 2026 | 508.13M |
| September 03, 2026 | 496.75M |
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
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Market Cap Benchmarks
| Alkermes Plc | 7.901B |
| Amarin Corp. Plc | 239.70M |
| Agenus, Inc. | 303.80M |
| Amgen, Inc. | 251.83B |
| Anika Therapeutics, Inc. | 178.74M |
Market Cap Related Metrics
| PS Ratio | 8.177 |
| Price to Book Value | 1.557 |
| Price | 8.155 |
| Earnings Yield | -5.81% |