Critical System Information

UpdateBrokerTec ID Field Changes for CME STP FIX and FIXML - November 1

† Denotes update to the article

Effective †Sunday, November 1 (trade date Monday, November 2), CME STP FIX and FIXML will transition to a deterministic algorithm for generating values across the specified fields.

These values were formerly generated using database sequences that incremented continuously and sequentially until reaching the limit of a 32-bit integer, at which point they would reset to 0. New values will not be incremental but will maintain uniqueness.

BrokerTec ID Field Changes for CME STP FIX and FIXML
Field	Existing Data Type	Current example value	New example Value	Applicable Products
FIX: tag 1003 - TradeId FIXML: TrdCaptRpt/@TrdID	STRING	53215462 53215463 53215464	48092753 68420421 57801495	BrokerTec markets
FIX: tag 20056 - SettlementTradeID FIXML: TrdCaptRpt/@SettlTrdID	STRING	R0032942340 C0032942341 R0032942342	R0028409863 C0056372842 R0034569011
FIX: tag 20011 - DealID FIXML: TrdCaptRpt/@DealID	STRING	101861919 101861920 101861921	58274031 23485034 86524344

This change is currently available for customer testing in New Release.

UpdateTreasury Link Spreads on CME Globex - Q1 2027

† Denotes update to the article

†In Q1 2027, pending regulatory review, CME Group will introduce Treasury Link (cash versus futures) spreads for trading on CME Globex. 

This offering represents a price differential between BrokerTec U.S. Treasury Actives offered on BrokerTec Chicago and CBOT U.S. Treasury futures, facilitating the simultaneous and atomic execution of both legs within a single transaction, eliminating legging risk. 

Treasury Link spreads will be listed with 1 to 1 Ratio and DV01 Weighted (X:Y) Ratio. For more information, view the Treasury Link Spreads - Product Specifications. 

For technical specifications, launch timelines, connectivity instructions, and revision history of changes since initial publication, review the client impact assessment.

Use your CME Group Login to view market data multicast IP and port details on the Connectivity and Configuration Details page. 

These products will be available for customer testing in New Release on †Monday, October 19.

Product Launches

UpdateNew European Covered Repo Instruments for CCP Trading - Q4 2026

† Denotes update to the article

†In Q4 2026, the new European Covered Bond Repo instruments will be listed for CCP Trading (LCH SA Cleared) on BrokerTec EU markets on CME Globex.

These changes are currently available for customer testing in New Release.

Front-End Clients

NewBrokerTec Global Front End Client Upgrade 11.11 - October 7

On Wednesday, October 7, there will be a new BrokerTec Global Front End (GFE) Client 11.11 software upgrade.

Firms that need to package the BrokerTec Client for distribution can download version 11.11 when it is available.

Customers using BrokerTec Sync will automatically be upgraded to the latest version.

This software release includes security updates and technical enhancements aimed at improving application stability.

Any client inquiries for technical issues or Production support should be directed to the CME Group Global Command Center (GCC) in the U.S. +1 800 438 8616, in Europe at +44 20 7623 4747, in Japan at +81 3 6733 7559 or in Asia at +65 6532 5010.

Events and Announcements

SIFMA Business Continuity Test - October 24

On Saturday, October 24, BrokerTec U.S. will participate in the Securities Industry and Financial Markets Association (SIFMA) Business Continuity Test. All BrokerTec U.S. client testing is scheduled from 9 to 11 a.m. Eastern Time in our Production environment.

Customers who wish to test with BrokerTec should register directly with SIFMA before October 16.

To be enabled for weekend testing privileges, customers who have registered with SIFMA must provide their Production CME Group Login and any CME API IDs they intend to test with to the Global Command Center (GCC).

Please contact CME Global Command Center (GCC) for support in the U.S. at +1 800 438 8616, in Europe at +44 20 7623 4747, in Asia at +65 6532 5010 or in Japan at +81 3 6733 7559.

Central Clearing for BrokerTec U.S. Treasury Cash - November 2

By Monday, November 2, to comply with the upcoming SEC Central Clearing Mandate, all bilateral participants trading U.S. Treasury cash products on BrokerTec must begin clearing these transactions through a Covered Clearing Agency (CCA).

Please contact brokertecinqueries@cmegroup.com with any questions.

CME Group and Google Market App Building Workshop in London - November 11

On Wednesday, November 11, join CME Group and Google in London for “CME x Google: The Builders Lab,” an exclusive in-person interactive coding workshop designed exclusively for developers and quants to harness our premium futures and options data to build a real-world analytics application of your choice.

 

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