The Graham Number of IDT Corp (IDT) is 28.65.
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 |
|---|---|
| 2025-07-31 | 28.65 |
| 2024-07-31 | 23.68 |
| 2023-07-31 | 16.65 |
| 2022-07-31 | 12.65 |
| 2021-07-31 | 23.72 |
| 2020-07-31 | 7.52 |
| 2019-07-31 | 0.45 |
| 2018-07-31 | 2.13 |
| 2017-07-31 | 6.50 |
| 2016-07-31 | 10.14 |