Quantitative Calculation

The first component of the ALLL calculation consists of generating a historical loss view. This consists of first classifying loans into two different categories, ASC 450-20 (FAS 5) and ASC 310-10-35 (FAS 114), contingent upon their performance.

Institutions must select a measure of loss, which consists of peer analysis, historical loss, migration analysis and PD/LGD. Different data requirements are needed for each methodology, and some derive a more granular analysis than others.

The goal of the quantitative calculation portion of the ALLL is to determine what financial institutions’ historical loss experiences have been, and to then derive a basis point for the estimate of within their current portfolio.


Quantitative Calculation