Calculate Coupon Dates

First Coupon Date (473) and Last Coupon Date (474) are required fields for all securities that leverage the fixed income code. These fields have different names for some swaps:

• First Payment Date and Last Payment Date
• First Payment/Valuation Date and Last Payment/Valuation Date

For securities that use a Business Day Convention (1536) with an adjustment, such as ADJMBC (Modified Following - Adjusted), these dates must be valid business days. However, only unadjusted dates may be available in the security reference data. Eagle has functionality to calculate the adjusted dates in these cases. Two fields must be used in tandem to calculate both dates correctly.

1. Calculate First/Last Coupon Dates (2301)
2. Calculate/Validate Last Coupon Date (2337)