Optional
This field identifies the securities being requested or transferred as collateral.
At least Identification of a Security (Subfield 1) or Description of Security (Subfield 2) must be present; both may be present (Error code(s): T17).
ISIN is used at the beginning of Identification of Security (Subfield 1) and must be composed of uppercase letters only (Error code(s): T12).
This field may only be present when the collateral is in the form of securities, eg, field 26H contains SECUCOLL, OTHECOLL or EXISTING.
When used in Description of Security (Subfield 2), codes must start and end with a slash '/'.
When an ISIN identifier is not used it is strongly recommended that one of the following codes be used as the first four characters of the Description of Security (Subfield 2):
It is strongly recommended that the ISIN be used.