 CodeList | When needed, this aggregate contains the additional information pertaining to a specific open or closed enumerated list contained within a data stream. |
| ConversionRate | When needed, this aggregate is used to translate either a currency or measurement from one unit of measure to another. |
| CurCd | Currency Code. The applicable codes are defined by International Standards Organization (ISO-4217). |
| MsgStatus | This aggregate is used in a response message to provide the complete status from the result of processing the matching request. |
 RqUID | Request Identifier. Sent by a client as a universally unique identifier for the message. |
| TransactionEffectiveDt | The date on which this transaction takes effect. |