Oslo Optiq Migration - Technical Specifications Published

Oslo   Migration Specifications Released

As mentioned in the Info-Flash of 16 March 2020,   updated technical specifications have now been published. The specification   contains Oslo migration related changes, but also changes for other upcoming   Euronext projects. The changes made can be found in the Change Summary   section of the documents.

The specifications are based on SBE template version 300. This   documentation will assist customers in their preparation for the Oslo   migration. The documentation is available in the IT Documentation   section of the Euronext Connect customer portal at www.euronext.com/optiq.

List   of specifications:

■       Euronext Markets - Optiq File Specifications v4.0.0

■       Euronext Markets - Optiq MDG Client   Specifications v4.0.2

■       Euronext Markets - Optiq OEG Client   Specifications - FIX 5.0 Interface v4.0.2

■       Euronext Markets - Optiq OEG Client   Specifications - SBE Interface v4.0.2

■       Optiq OEG and MDG SBE templates - version 217   / 300

Notes:

■       The previously standalone specification Euronext Cash Markets – Optiq TCS Client   Specification – SBE and FIX Interfaces has been merged into the updated   Optiq OEG Client Specification FIX 5.0 and Optiq OEG Specification SBE   Interface respectively.

■       The previously standalone specification Euronext APA and Euronext Synapse – MDG   Client Specifications has been merged into the updated Euronext Markets -   Optiq MDG Client Specifications specification.

■       Updated Saturn specifications with Oslo   migration related changes will be released in due time.

■       An updated version of the above specification(s)   is expected to include Oslo Fixed Income specific changes.

As a reminder, here is the Oslo Migration Timeline:

* pending regulatory approval.

Customers who have additional Oslo   related questions are invited to contact the Client Support team and use the   dedicated client support mailbox for the Oslo migration oslomigration@euronext.com.

Operational   Client Services Desk

Telephone:

Belgium:                +32   2620 0585                    |              Portugal:                +351 2 1060 8585              

France:                  +33   1 8514 8585                 |              Netherlands :        +31 20 721 9585

Ireland:                  +353 1 6174 289                 |              UK:                          +44   207 660 8585

Email: clientsupport@euronext.com                               Service hours: 08:00 – 19:00 CET