Identifies the source of rate information.
- 0 = Bloomberg
- 1 = Reuters
- 2 = Telerate
3 = ISDA Settlement Rate Option
The source of the currency conversion as specified by the ISDA terms in Annex A to the 1998 FX and Currency Option Definitions. See http://www.fpml.org/coding-scheme/settlement-rate-option
- 99 = Other