Type: Specifications
Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v6.361.0Optiq Files - Interface Speci 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 - v6.361.0 + 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 - v6.361.0 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v6.361.0 + TC Optiq Market Data
Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v6.361.0 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 - v6.361.0 + 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 SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v6.361.0 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 - v6.361.0 + TC Optiq Market Data, 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 MDG - Kinematics Specification - Euronext Cash Markets - External - v6.361.0 + 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 Drop Copy Third Party - Interface Specification - Euronext Cash Markets - v6361.0 + TC Optiq Market Data

The purpose of this document is to detail the structure and the usage of each message that is produced by Drop copy Third Party.

Optiq OEG TCS Error List - Technical Specifications - Euronext Cash and Derivatives Markets - External - v.6.361 Optiq Order Entry

Optiq OEG TCS Error List - Technical Specifications - Euronext Cash and Derivatives Markets - External - v.6.361

Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.358.1 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.358.1 + TC Optiq Market Data
Optiq Files - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.358.0 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 - v5.358.0 Optiq Market Data
Optiq MDG Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.358.0 + TC Optiq Market Data
Optiq OEG FIX 5.0 Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.358.0 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 - v5.358.0 + 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 SBE Messages - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.358.0 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 - v5.358.0 + 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 Drop Copy Service - Interface Specification - Euronext Cash and Derivatives Markets - External - v5.358.0 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 - v5.358.0 + 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 Drop Copy Third Party - Interface Specification - Euronext Cash Markets - v5.358.0 Optiq Market Data

The purpose of this document is to detail the structure and the usage of each message that is produced by Drop Copy Third Party.

Optiq Drop Copy Third Party - Interface Specification - Euronext Cash Markets - v5.358.0 + TC Optiq Market Data

The purpose of this document is to detail the structure and the usage of each message that is produced by Drop Copy Third Party.

Optiq OEG TCS Error List - TechnicaL Specifiations - Euronext Cash and Derivatives Markets - External - v.5.358 Optiq Order Entry

Optiq OEG TCS Error List - TechnicaL Specifiations - Euronext Cash and Derivatives Markets - External - v.5.358

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 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.

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.5.355.0 Optiq Order Entry

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

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 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.

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

The purpose of this document is to detail Kinematics for Optiq Order Entry Gateway and Market Data Gateway messages.

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

The purpose of this document is to detail Kinematics for Optiq Order Entry Gateway and Market Data Gateway messages.

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

Type: Connectivity Documents
Optiq MDG Production Connectivity - Euronext Cash and Derivatives Markets - External - v6.361.0 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 - v6.361.0 + 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 - v6.361.0 Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway External User Acceptance (EUA). Only shaped data is provided in the test environment. In order to ensure a Production-like test environment, separate IP addresses and ports are used to replicate the Production ‘shaped’ and ‘unshaped’ configuration

Optiq MDG EUA Connectivity - Euronext Cash and Derivatives Markets - External - v6.361.0 + TC Optiq Market Data

This document provides all multicast addresses required to access the Euronext Optiq® Market Data Gateway External User Acceptance (EUA). Only shaped data is provided in the test environment. In order to ensure a Production-like test environment, separate IP addresses and ports are used to replicate the Production ‘shaped’ and ‘unshaped’ configuration

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 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 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 Optiq Market Data

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

Type: Sample Files
oeg_binary_sbe_input_361 Optiq Order Entry
mdg_binary_sbe_input_361 Optiq Market Data
external_drop_copy_messages_binary_sbe_input_361 Optiq Market Data
oeg_binary_sbe_input_358 Optiq Order Entry
mdg_binary_sbe_input_358 Optiq Market Data
external_drop_copy_messages_binary_sbe_input_358 Optiq Market Data
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
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
oeg_binary_sbe_input_355 Optiq Order Entry
external_drop_copy_messages_binary_sbe_input_355 Optiq Market Data
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.

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.