The Graham Number of Prothena Corporation PLC (PRTA) is 15.94.
Graham Number estimates the fair value of a stock using both earnings and book value per share. It is commonly used by value investors to identify undervalued stocks.
| Date | Value |
|---|---|
| 2024-12-31 | 15.94 |
| 2023-12-31 | 15.57 |
| 2022-12-31 | 17.99 |