The Graham Number of Old Second Bancorp Inc (OSBC) is 24.99.
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 | 24.99 |
| 2024-12-31 | 22.27 |
| 2023-12-31 | 21.43 |
| 2022-12-31 | 16.42 |
| 2021-12-31 | 9.33 |
| 2020-12-31 | 8.60 |
| 2019-12-31 | 9.76 |
| 2018-12-31 | 8.22 |
| 2017-12-31 | 5.12 |
| 2016-12-31 | 4.88 |