NewOrderSupplement (MENOS)
| ID | 29755 |
The New Order Supplement event is a supplement to the New Order event. One New Order event can have multiple New Order Supplement events. Multiple New Order Supplement events are considered as additions, not replacements or modifications. This event accommodates reporting in the following scenarios:
Aggregated Orders
This event accommodates reporting in scenarios when the number of Aggregated Orders included in the aggregatedOrders field causes the New Order event to exceed the maximum allowed message length, or when the orders being represented are not captured in the New Order Event. The aggregatedOrders field in the New Order Supplement event must contain the additional Aggregated Orders that were not captured in the original New Order event, or another Supplement event for the same order.
FDID
This event accommodates reporting in scenarios when an Industry Member receives an order for a new account and the new account number, on which the FDID is based, is not yet available for creation and reporting of the CAT new order event. If an FDID has not yet been created when an order has been received, the Industry Member must populate the firmDesignatedID field in its New Order event with a value of ‘PENDING’.
Once the FDID becomes available, the Industry Member must report the actual FDID in the firmDesignatedID field in a New Order Supplement event. Any New Order Supplement event with an FDID populated will not be considered late for CAT reporting purposes if it is received by T+3 @ 8:00 AM ET. Refer to the CAT CAIS Industry Member Reporting Scenarios for additional information on how the firmDesignatedID will be reflected in the CAIS.
Field | Name | Type | Req'd | Comments | Pedigree |
|---|---|---|---|---|---|
2 | Y | Indicates whether the event is a new event, a firm initiated correction or a repair of a CAT error. | |||
38 | Required when actionType is ‘RPR’. Must be blank when actionType is ‘NEW’. | ||||
44 | Y | An identifier assigned to the record by the reporting firm. Formatted as Must be unique for the Event Date and CAT Reporter IMID. | |||
131 | Y | MENOS | |||
22 | The SRO-assigned identifier that an Industry Member uses to report to CAT. If populated, must equal the CATReporterIMID in the filename. | ||||
78 | Y | The orderKeyDate of the related New Order event which this event is supplementing. | |||
77 | Y | The orderID of the related New Order event which this event is supplementing. | |||
123 | Y | The symbol of the stock in the symbology of the primary listing exchange or FINRA for OTC Equity Securities. | |||
80 | An identifier used in instances of a merger or acquisition where the originating firm had open limit orders on its books that will be executed or otherwise resolved under the surviving firm. Must be provided to support linkage to an event that was reported with a different CATReporterIMID. | ||||
39 | Y | The date/time of the related New Order event which this event supplements (including scenarios in which the supplement is created at a later time). | |||
aggregatedOrders | When applicable, the order ID of each customer/client order being represented. Refer to Appendix C for representative order linkage requirements. | ||||
42 | Required when reporting a supplement to an MENO event that was reported prior to the FDID being available. Refer to Appendix G: Data Dictionary for definition and guidance for populating this field. |
Orchimate Copyright 2026 Atomic Wire Technology Limited
Orchestra Copyright 2026 FIX Protocol Ltd
Terms of Use|Privacy Policy