The Graham Number of Gibraltar Industries, Inc. (ROCK) is 60.92.
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 |
|---|---|
| 2025-12-31 | 60.92 |
| 2024-12-31 | 60.63 |
| 2023-12-31 | 50.83 |
| 2022-12-31 | 41.60 |
| 2021-12-31 | 39.92 |
| 2020-12-31 | 35.03 |
| 2019-12-31 | 33.48 |
| 2018-12-31 | 31.18 |
| 2017-12-31 | 29.16 |
| 2016-12-31 | 19.92 |