CME Initiated User-Defined Spreads Deletion

Advisory CA008-18
February 7, 2018
Customer Advisory

Event Summary: CME Group will be deleting all User-Defined Spread Instruments (UDS) on CME and CBOT Equity options Market Segment 54 during today’s maintenance window, 2/7/2018. Any UDS with resting GT orders will not be deleted.

TT Services Impacted: Due to the User Defined Spreads being deleted by the CME exchange, clients may see stale UDS instruments within their application. 

TT recommend course of action for customers: No course of action needed.

 

Exchanges impacted: CME 

 

Prices impacted: No

 

New order entry impacted: Yes, for those UDS instruments that are removed by CME

 

Working orders impacted: No, as CME indicated that resting GT orders will not be deleted.

CME Announcement:

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CME Group will be deleting all User-Defined Spread Instruments (UDS) on CME and CBOT Equity options Market Segment 54 during today’s maintenance window, 2/7/2018. Any UDS with resting GT orders will not be deleted.

As a reminder, UDS instruments can be deleted midweek. When this occurs, CME Globex sends a Security Definition message (tag 35=d) with the instruction to delete the instrument with tag 980-SecurityUpdateAction=D (delete). A tag 48-SecurityID value from a deleted instrument can be reassigned to a newly listed instrument within the same week; therefore, CME Group strongly recommends the client system process the Security Definition message (tag 35=d) with the tag 980=D as received.

If you have any questions, please contact the CME Global Command Center in the U.S. at +1 800 438 8616, in Europe at +44 20 7623 4747 or in Asia at +65 6532 5010.

The sender provided the following contact information. 
Sender’s Name: CME Global Command Center 
Sender’s Email:gcc@cmegroup.com 
Sender’s Contact Phone: 1800 438 8616

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If you have any questions, please contact TT Support:

U.S. Toll Free:   +1 877 424 8844

Chicago:           +1 312 476 1002

London:            +44 20 7621 8181

Singapore:        +65 6395 7002

Sydney:            +61 2 8022 1702

Tokyo:              +81 3 4577 8345