Type: Technical Notes
Trading Groups Adjustment for a set of European stocks on BGEM and ETLX markets Optiq Order Entry

Trading Groups Adjustment for a set of European stocks on BGEM and ETLX markets

TGs target - BGEM-ETLX-MTAH Optiq Order Entry
Type: Dress Rehearsal Documents
Euronext Disaster Recovery Test 25 October 2025 - Guidelines for Participants Data Centre Services, Optiq Market Data, Optiq Order Entry

The purpose of this document is to provide Euronext clients with the agenda and the guidelines related to the Euronext 2025 Disaster Recovery Test.

EURONEXT ETF EUROPE – DRESS REHEARSALS GUIDELINES v1.0 Optiq Market Data, Optiq Order Entry

In preparation for the launch of Euronext ETF Europe, planned for 29 September, Euronext will hold a Customer Dress Rehearsal (CDR) and the Go-Live weekend on Saturday, 13 September 2025 and Saturday, 27 September 2025, respectively. This document aims to provide guidance on prerequisites, timing, scope and a detailed schedule to the clients for them to prepare for the event of Saturday, 13 September 2025.

Type: Specifications
Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.3 Optiq Market Data, Optiq Order Entry
Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.3 + TC Optiq Market Data, Optiq Order Entry
Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 + TC Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 + TC Optiq Market Data
Optiq Drop Copy Service - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 Optiq Market Data

This document is about the Drop Copy Service that provides, nearly, a real-time copies of required information produced by Optiq under trade reports and order messages format.

Optiq Drop Copy Service - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 + TC Optiq Market Data

This document is about the Drop Copy Service that provides, nearly, a real-time copies of required information produced by Optiq under trade reports and order messages format.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 + TC Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 Optiq Market Data

The purpose of this document is to describe all the files required for Trading on Optiq platform.

Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.357.0 + TC Optiq Market Data

The purpose of this document is to describe all the files required for Trading on Optiq platform

BITA - OTR Reporting - v 6.0 - Optiq Optiq Order Entry

The scope of this document is to provide a technical description of the “OTR Calculation and Reporting” service. Chapter 2 of this document provides details regarding the implementation of the OTR regime for Borsa Italiana markets. Chapters from 3 to 5 provide technical information and specifications regarding the daily OTR reports made available to Borsa Italiana Member Firms

Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.1 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.1 + TC Optiq Market Data
Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.1 Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.1 + TC Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.1 Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.1 + TC Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Request For Quote - Detailed Functional Specification - Euronext Cash Markets - External - v5.355.1 Optiq Order Entry

This document provides the detailed functional specifications of the Request For Quote service, which is a feature of the Optiq® Trading Solution.

Request For Quote - Detailed Functional Specification - Euronext Cash Markets - External - v5.355.1 + TC Optiq Order Entry

This document provides the detailed functional specifications of the Request For Quote service, which is a feature of the Optiq® Trading Solution.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.1 Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.1 + TC Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.1 Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.1 + TC Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG Service - Euronext Cash and Derivatives Markets - Interface Specifications - External - v5.356.0 Optiq Order Entry

This document sets out the client connectivity configuration specifications for Optiq® Order Entry Gateways (OEG).

Optiq OEG Service - Euronext Cash and Derivatives Markets - Interface Specifications - External - v5.356.0 + TC Optiq Order Entry

This document sets out the client connectivity configuration specifications for Optiq® Order Entry Gateways (OEG).

Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 Optiq Market Data, Optiq Order Entry
Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 + TC Optiq Market Data, Optiq Order Entry
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 + TC Optiq Market Data
Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 + TC Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.356.0 + TC Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG TCS Error List - Technical Specifiations - Euronext Cash and Derivatives Markets - External - v.5.356 Optiq Order Entry

Optiq OEG TCS Error List - Technical Specifiations - Euronext Cash and Derivatives Markets - External - v.5.356

Optiq OEG TCS Error List - TechnicaL Specifiations - Euronext Cash and Derivatives Markets - ExternaL - v.5.355.0 Optiq Order Entry

Optiq OEG TCS Error List - TechnicaL Specifiations - Euronext Cash and Derivatives Markets - ExternaL - v.5.355.0

Optiq Drop Copy Service - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 + TC Optiq Market Data

This document is about the Drop Copy Service that provides, nearly, a real-time copies of required information produced by Optiq under trade reports and order messages format.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 + TC Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Request For Quote - Detailed Functional Specification - Euronext Cash Markets - External - v5.355.0 + TC Optiq Order Entry

This document provides the detailed functional specifications of the Request For Quote service, which is a feature of the Optiq® Trading Solution.

Request For Quote - Detailed Functional Specification - Euronext Cash Markets - External - v5.355.0 Optiq Order Entry

This document provides the detailed functional specifications of the Request For Quote service, which is a feature of the Optiq® Trading Solution.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 + TC Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG MDG - Kinematics Specification - Euronext Cash Markets - External - v5.355.0 +TC Optiq Market Data, Optiq Order Entry

The purpose of this document is to describe Cash Market Kinematics for Optiq Order Entry Gateway (OEG) and Market Data Gateway (MDG).

Optiq OEG MDG - Kinematics Specification - Euronext Cash Markets - External - v5.355.0 Optiq Market Data, Optiq Order Entry

The purpose of this document is to describe Cash Market Kinematics for Optiq Order Entry Gateway (OEG) and Market Data Gateway (MDG)

Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 Optiq Market Data
Optiq Drop Copy Service - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 Optiq Market Data

This document is about the Drop Copy Service that provides, nearly, a real-time copies of required information produced by Optiq under trade reports and order messages format

Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 + TC Optiq Market Data

The purpose of this document is to describe all the files required for Trading on Optiq platform.

Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.355.0 + TC Optiq Market Data
Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.1 Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.1 + TC Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.1 + TC Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.353.1 + TC Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.353.1 Optiq Order Entry

This document sets out the client messages specifications for Optiq OEG using the SBE format. More specifically, it describes the contents of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.353.1 + TC Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.353.1 Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.1 Optiq Order Entry

The purpose of this document is to set out the client messages specification for Optiq OEG using FIX 5.0 format. More specifically, it describes the content of administrative and application messages and provides detailed field descriptions.

Optiq Drop Copy Service - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.0 Optiq Market Data

This document is about the Drop Copy Service that provides, nearly, a real-time copies of required information produced by Optiq under trade reports and order messages format

Optiq Drop Copy Service - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.0 + TC Optiq Market Data

This document is about the Drop Copy Service that provides, nearly, a real-time copies of required information produced by Optiq under trade reports and order messages format

Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.0 Optiq Market Data
Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.0 + TC Optiq Market Data

The purpose of this document is to describe all the files required for Trading on Optiq platform.

Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.0 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.354.0 + TC Optiq Market Data
Optiq OEG TCS Error List - Technical Specification - Euronext Cash and Derivatives Markets - External - v5.354.0 Optiq Order Entry
Type: Sample Files
oeg_binary_sbe_input_357 Optiq Order Entry
mdg_binary_sbe_input_357 Optiq Market Data
external_drop_copy_messages_binary_sbe_input_357 Optiq Market Data
TG Reorganisation Optiq Order Entry

File including all ETF instruments in scope for the TG reorganisation in the context of Euronext ETF Europe project, highlighting the former Trading Group and the new Trading Group for each instrument.

Euronext ETF Europe - Instruments in scope for the MIC migration in Next EUA Optiq Market Data, Optiq Order Entry

Linked to the Cash Info-Flash "Euronext ETF Europe – Next EUA availability"

 

ETF UPDATES - Appendix to Euronext Instructions 4-01 4-03 Trading Manuals – DRAFT Version Optiq Market Data, Optiq Order Entry

ETF UPDATES - Appendix to Euronext Instructions 4-01 4-03 Trading Manuals – DRAFT Version

external_drop_copy_messages_binary_sbe_input_356 Optiq Market Data
oeg_binary_sbe_input_356 Optiq Order Entry
mdg_binary_sbe_input_356 Optiq Market Data
MiFID II - Tick sizes Equities Update 15 May 2025 Optiq Order Entry

MiFID II - Tick sizes Equities Update 15 May 2025

PROD-ETN-ETC TGs reorganization Optiq Market Data, Optiq Order Entry

Linked to the Cash Info-Flash "Extension of RFQ to non-Italian ETP markets and ETP Trading Groups reorganization" sent on 12/05/2025
Linked to the Cash Info-Flash "Reminder - RFQ extension to non-Italian ETP markets, ETP Trading Groups reorganization and Auto-RFQ" sent on 07/07/2025

external_drop_copy_messages_binary_sbe_input_355 Optiq Market Data
mdg_binary_sbe_input_355 Optiq Market Data
oeg_binary_sbe_input_355 Optiq Order Entry
MiFID II - Tick sizes Equities Update 7 April 2025 Optiq Order Entry

MiFID II - Tick sizes Equities Update 7 April 2025

Fixed Income New Trading Group Structure - List of the impacted securities Optiq Market Data, Optiq Order Entry

Fixed Income New Trading Group Structure - List of the impacted securities

Type: Conformance Tests Documents
EURONEXT CONFORMANCE TESTING AND ALGORITHM POLICY Optiq Market Data, Optiq Order Entry

This document details the Euronext policy and accompanying procedures for
(i) any party involved in developing, testing or deploying in-house or ISV (independent software vendor) trading applications that interoperate with the Euronext Trading Platform;
(ii) ISVs who develop, test and deploy trading applications that interoperate with the Euronext Trading Platform;
(iii) Application Service Providers (ASP) and hosted solutions that enable use of the Euronext Trading Platform; and
(iv) any party involved in using algorithms for trading purposes.

Note: The APA/ARM sections of this document complies with the UK DRSP regulatory framework governance.

Optiq OEG ME Cash Conformance - Test Script - SBE & FIX Protocols v1.9.6 Optiq Order Entry

The purpose of this document is to provide customers with a description of the Optiq order entry conformance script, with scenarios for connectivity, functional data conformance and high availability tests for Euronext Cash markets.

Type: Functional Overview
Optiq Bond Issuing – Direct Distribution User Guide v1.0 Optiq Order Entry

This document provides Euronext customers with functional and technical details regarding the direct distribution of bonds on the occasion of an Initial Bond Offering (hereinafter the “Direct Distribution Service”) available on the Optiq® trading system, with reference to the Bond segment (Euronext Access Milan, MOT).

RiskGuard Cash - User Guide - V1.3 Optiq Market Data, Optiq Order Entry

Euronext RiskGuard for Cash Markets is the Euronext pre-trade risk management service, providing Risk Managers at Clearing or Trading Euronext Member firms with the ability to monitor their clients' or firm's risk exposure

Self-Trade Prevention - Functional Overview - v5.354.0 + TC Optiq Order Entry

Self-Trade Prevention (STP) has been introduced on Euronext’s Markets to allow Member Firms performing specific types of activities (e.g. Market Makers) to avoid trading with themselves.

Request For Quote - Detailed Functional Specification - Euronext Cash Markets - External - v5.354.0 + TC Optiq Market Data, Optiq Order Entry

This document provides the detailed functional specifications of the Request For Quote service, which is a feature of the Optiq® Trading Solution.

Type: Connectivity Documents
Optiq MDG Production Connectivity - Euronext Cash and Derivatives Markets - External - v5.356.0 Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway Production and Disaster Recovery (DR).

Optiq MDG Production Connectivity - Euronext Cash and Derivatives Markets - External - v5.356.0 + TC Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway Production and Disaster Recovery (DR).

Optiq MDG EUA Connectivity - Euronext Cash and Derivatives Markets - External - v5.356.0 Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway External User Acceptance (EUA).

Optiq MDG EUA Connectivity - Euronext Cash and Derivatives Markets - External - v5.356.0 + TC Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway External User Acceptance (EUA).

Optiq MDG EUA Connectivity - Euronext Cash and Derivatives Markets - External - v5.355.0 + TC Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway External User Acceptance (EUA). 

Optiq MDG EUA Connectivity - Euronext Cash and Derivatives Markets - External - v5.355.0 Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway External User Acceptance (EUA).

Optiq MDG Production Connectivity - Euronext Cash and Derivatives Markets - External - v5.355.0 + TC Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway Production and Disaster Recovery (DR).

Optiq MDG Production Connectivity - Euronext Cash and Derivatives Markets - External - v5.355.0 Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway Production and Disaster Recovery (DR).