| Score | Rating | Grade |
| 90+ | AAA | Highest Rating with Extremely Strong rental demand and/or performance |
| 80-89 | AA | Very Strong rental demand and/or performance but lower then AAA |
| 70-79 | A | Strong rental demand and/or performance but not as stable as AAA and AA |
| 60-69 | BBB | Good tenancy demand and/or performance but more likely to be unstable |
| 50-59 | BB | Marginal demand and/or performance but unstable |
| 40-49 | B | Weak with low tenancy demand and/or performance |
| 30-39 | CC | Very weak, poor tenancy demand and/or performance |
| 29 and less | C | Very poor tenancy demand and rental performance |