Weighted average loan age (WALA)
The weighted average number of months since the date of the origination of the mortgages (i.e., the age of the loans) that collateralize a security, weighted by the size of the principal loan balances.
The weighted average number of months since the date of the origination of the mortgages (i.e., the age of the loans) that collateralize a security, weighted by the size of the principal loan balances.