Certificates of amortizing revolving debt (CARDs), which are asset backed securities backed by credit card loans. These types of securities do not have a scheduled principal repayment on a specific timely basis. However, they have an effective maturity date that can change over time.
Certificates for automotive receivables (CARs), which are asset backed securities backed by car loans. The monthly prepayment is expressed as a percentage of the original collateral amount, known as the absolute prepayment speed (ABS).
For example, suppose you provide prepayment time series information with an effective date of 03/01/14 and a value of 04/01/14 and a lot is earned through 04/30/14. You can roll back a position’s earnings to 03/01/14 and roll the earning's forward to 04/30/14. The system uses the values in place based on the specified effective date. When earnings are rolled back to 03/01/14 and replayed to 04/30/14, the system uses the time series information on 03/01/14, from 03/01/14 through 03/31/14, and then switches to the time series information on 04/01/14, from 04/01/14 through 04/30/14.
Eagle Accounting only uses prepayment time series information records with a Prepayment Time Series Release Status of Released. It does not use records with a Pending release status in the processing of amortization or cash flows. However, you can use the Amortization Schedule research report to report on time series information with a Pending or Released status.
About the Time Series Table
The Time Series table stores the ABS/MBS time series data used in the calculation of trade and amortization yield. Eagle Accounting stores the following data based upon a single Effective Date in the table, rather than on the Security Master Record:
Current WAC (Weighted Average Coupon)
Current WAM (Weighted Average Maturity)
Current WALA (Weighted Average Loan Age)
CPR 1 month (Constant Prepayment Rate)
CPR 3 Month
CPR 6 Month
CPR 12 Month
CPR Life
PSA 1 month (PSA stands for the Public Security Association)
PSA 3 Month
PSA 6 Month
PSA 12 Month
PSA Life
ABS 1 month (ABS stands for the Absolute Prepayment model
ABS 3 Month
ABS 6 Month
ABS 12 Month
ABS Life
SMM (Single Monthly mortality
Effective Maturity Date
Prepayment Time Series Release Status
By storing the data in a time sensitive structure, the earnings process has tighter control over which values are used, and when they are used, in yield calculations during earnings roll forward and roll back. Another benefit of storing data as time sensitive elements is that when data changes from one period to the next, Eagle Accounting takes a prospective approach for the coupon period for the calculation of the amortization yield and subsequent amortization.
By storing the time series information, Eagle Accounting has the ability to correctly process ABS securities backed by credit card loans, also known as Certificates of Amortizing Revolving Debt or simply as CARDS. CARDS securities are different from other ABS/MBS securities as they do not amortize principal in a scheduled manner; there is no scheduled principal repayment on a specific basis. CARDS securities also have an Effective Maturity Date which acts as the new target Amortization Date (this also known as Soft Bullet Maturity). The Effective Maturity Date is a time sensitive element and can change over time. When the Effective Maturity Date changes, Eagle Accounting takes a prospective approach to calculation of the amortization yield and subsequent amortization.
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