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Type: Functional Overview
12/03/2025	SATURN Commodities Positions Reporting – Detailed Functional Specifications – Euronext Derivatives Markets - External - v5.354.0	Saturn	Reporting interfaces Functional Overview Saturn Future release This client specification document is related to the Euronext Saturn Web Services, part of the Euronext Global Reporting Solution dedicated to answer the MiFID II reporting and publication requirements. Saturn offers a REST API which can be used to access the reporting services. The purpose of this document is to describe the technology and the supported messages for Commodity Position Reporting requirements under MiFID II
12/03/2025	SATURN Commodities Positions Reporting – Detailed Functional Specifications – Euronext Derivatives Markets - External - v5.354.0	Saturn	Reporting interfaces Functional Overview Saturn Future release This client specification document is related to the Euronext Saturn Web Services, part of the Euronext Global Reporting Solution dedicated to answer the MiFID II reporting and publication requirements. Saturn offers a REST API which can be used to access the reporting services. The purpose of this document is to describe the technology and the supported messages for Commodity Position Reporting requirements under MiFID II
31/01/2025	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.353.0 + TC	Saturn	Reporting interfaces Functional Overview Saturn Future release This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages
31/01/2025	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.353.0	Saturn	Reporting interfaces Functional Overview Saturn Power Derivatives Future release This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages
31/01/2025	Saturn - User Guide - Euronext Cash and Derivatives Markets - External - v5.353.0 + TC	Saturn	Reporting interfaces Functional Overview Saturn Future release Euronext has developed a suite of reporting services to support clients to meet their obligations under the Markets in Financial Instruments Directive II and as amended and transposed into the laws of the United Kingdom pursuant to the European Union (Withdrawal) Act 2018 and the European Union (Withdrawal Agreement) Act 2020 (“UK MiFID II”).
31/01/2025	Saturn - User Guide - Euronext Cash and Derivatives Markets - External - v5.353.0	Saturn	Reporting interfaces Functional Overview Saturn Power Derivatives Future release Euronext has developed a suite of reporting services to support clients to meet their obligations under the Markets in Financial Instruments Directive II and as amended and transposed into the laws of the United Kingdom pursuant to the European Union (Withdrawal) Act 2018 and the European Union (Withdrawal Agreement) Act 2020 (“UK MiFID II”).
05/11/2024	Saturn - User Guide - Euronext Cash and Derivatives Markets - External - v5.351.0 +TC	Saturn	Reporting interfaces Functional Overview Saturn Future release Euronext has developed a suite of reporting services to support clients to meet their obligations under the Markets in Financial Instruments Directive II and as amended and transposed into the laws of the United Kingdom pursuant to the European Union (Withdrawal) Act 2018 and the European Union (Withdrawal Agreement) Act 2020 (“UK MiFID II”). This document describes how to use the Saturn User Interface (UI) as a support of the global reporting services provided by Euronext.
05/11/2024	Saturn APA ARM Services - Functional Overview - Euronext Cash and Derivatives Markets - v5.351.0 +TC	Saturn	Reporting interfaces Functional Overview Saturn Future release This document describes the Euronext Global Reporting Solution concerning the Euronext APA/ARM Services as well as the transaction modalities for Euronext Members not subject to MIFIR and the Cleared OTC Trade Facility. The objective is to give an overview of the services and functionalities. For more detailed information Market participants have to refer to the related documentation described below.
05/11/2024	Saturn APA ARM Services - Functional Overview - Euronext Cash and Derivatives Markets - v5.351.0	Saturn	Reporting interfaces Functional Overview Saturn Future release This document describes the Euronext Global Reporting Solution concerning the Euronext APA/ARM Services as well as the transaction modalities for Euronext Members not subject to MIFIR and the Cleared OTC Trade Facility. The objective is to give an overview of the services and functionalities. For more detailed information Market participants have to refer to the related documentation described below.
05/11/2024	Saturn - User Guide - Euronext Cash and Derivatives Markets - External - v5.351.0	Saturn	Reporting interfaces Functional Overview Saturn Future release Euronext has developed a suite of reporting services to support clients to meet their obligations under the Markets in Financial Instruments Directive II and as amended and transposed into the laws of the United Kingdom pursuant to the European Union (Withdrawal) Act 2018 and the European Union (Withdrawal Agreement) Act 2020 (“UK MiFID II”).
24/10/2024	Saturn - Transaction Reporting Guidelines for Non-MiFID members - v1.4	Saturn	Reporting interfaces Functional Overview Saturn Future release Saturn - Transaction Reporting Guidelines for Non-MiFID members - v1.4
16/09/2024	Euronext Disaster Recovery Test 5 October 2024 - Guidelines for Participants	Cash - Regulated Markets, Common File Transfer System /CFTS, Derivatives - Regulated Markets, Euronext Trader, MDG Lite, Plug, Saturn, TCS	Data Centre Services Optiq Market Data Optiq Order Entry Reporting interfaces Functional Overview Cash - Regulated Markets Common File Transfer System /CFTS Derivatives - Regulated Markets Euronext Trader MDG Lite Plug Saturn TCS Production Euronext Disaster Recovery Test 5 October 2024 - Guidelines for Participants
31/05/2024	Saturn APA ARM Services - Functional Overview - Euronext Cash and Derivatives Markets - v5.36.0 +TC	Saturn	Reporting interfaces Functional Overview Saturn Production This document describes the Euronext Global Reporting Solution concerning the Euronext APA/ARM Services as well as the transaction modalities for Euronext Members not subject to MIFIR and the Cleared OTC Trade Facility. T
31/05/2024	Saturn APA ARM Services - Functional Overview - Euronext Cash and Derivatives Markets - v5.36.0	Saturn	Reporting interfaces Functional Overview Saturn Production This document describes the Euronext Global Reporting Solution concerning the Euronext APA/ARM Services as well as the transaction modalities for Euronext Members not subject to MIFIR and the Cleared OTC Trade Facility.
09/02/2024	Guide to Trading System - Borsa Italiana Migration to Optiq - Functional Changes v.3.2	Cash - Regulated Markets, Derivatives - Regulated Markets	Optiq Market Data Optiq Order Entry Reporting interfaces Web Order Entry Functional Overview Cash - Regulated Markets Derivatives - Regulated Markets BITA Optiq migration Production Guide to Trading System - Borsa Italiana Migration to Optiq - Functional Changes v.3.2
04/08/2023	Saturn - User Guide - Euronext Cash and Derivatives Markets - External - v5.28.0 + TC	Saturn	Reporting interfaces Functional Overview Saturn Future release This document is intended for all clients who use Saturn services.
04/08/2023	Saturn - User Guide - Euronext Cash and Derivatives Markets - External - v5.28.0	Saturn	Reporting interfaces Functional Overview Saturn Future release This document is intended for all clients who use Saturn services.
20/11/2020	Saturn User guide - Migration to TOTP Solution.pdf	Saturn	Reporting interfaces Functional Overview Saturn Production This document is intended for all clients who use Saturn services.
21/10/2020	Euronext Off-Book On-Exchange trades publication - Market Model overview – version 1.4	Cash - Regulated Markets, Saturn	Reporting interfaces Functional Overview Cash - Regulated Markets Saturn Oslo Production This document describes the Euronext Dublin & Oslo On Exchange Off Book trade reporting facility. The objective is to give an overview of the functionality as well as the main system rules associated to these facilities.
05/10/2020	OSLO OPTIQ TECHNICAL USER GROUP 3RD	Cash - Regulated Markets, Derivatives - Regulated Markets, Saturn	Optiq Market Data Optiq Order Entry Reporting interfaces Functional Overview Cash - Regulated Markets Derivatives - Regulated Markets Saturn Oslo Production The Oslo Optiq Technical User Group presentation that was held as a webcast for Conformance testing.
08/08/2019	MiFID II: SATURN NEW transaction recovery feature – CANCEL and REPLACE	Saturn	Reporting interfaces Functional Overview Saturn Production Euronext informs customers that a new version of the Saturn Regulatory Reporting Solution is available in P-EUA with the production released in July 2019. This release of Saturn covers the new “Transaction Recovery” functionality.
30/11/2017	Euronext APA/ARM Services - Functional Overview V3.0	Saturn	Reporting interfaces Functional Overview Saturn Production This document describes the Euronext Global Reporting Solution concerning the Euronext APA/ARM Services as well as the transaction modalities for Euronext Members not subject to MIFIR and the Cleared OTC Trade Facility. The objective is to give an overview of the services and functionalities. For more detailed information Market participants have to refer to the related documentation described below.

Type: Specifications
03/02/2025	MiFID II Commodity Positions Reporting v1.15 + TC	Saturn	Reporting interfaces Specifications Saturn Future release The purpose of this document is to describe the technology and the supported messages for Commodity Position Reporting requirements under MiFID II
03/02/2025	MiFID II Commodity Positions Reporting v1.15	Saturn	Reporting interfaces Specifications Saturn Power Derivatives Future release The purpose of this document is to describe the technology and the supported messages for Commodity Position Reporting requirements under MiFID II
05/11/2024	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.351.0 +TC	Saturn	Reporting interfaces Specifications Saturn Future release This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages.
05/11/2024	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.351.0	Saturn	Reporting interfaces Specifications Saturn Future release This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages.
30/10/2024	Euronext Colocation Services - Service and Technical Description v7.1	Cash - Regulated Markets, Derivatives - Regulated Markets	Data Centre Services Optiq Market Data Optiq Order Entry Reporting interfaces Specifications Cash - Regulated Markets Derivatives - Regulated Markets Production The purpose of this document is to provide Clients with a detailed definition of the Euronext Colocation Services provided by the Euronext Group, including all relevant technical configurations and hosting facility specifications.
31/05/2024	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.36.0 +TC	Saturn	Reporting interfaces Specifications Saturn Future release This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages
31/05/2024	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.36.0	Saturn	Reporting interfaces Specifications Saturn Future release This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages.
30/04/2024	Saturn Short Long Code Management - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v3.0.	Saturn	Reporting interfaces Specifications Saturn Future release The purpose of this document is to introduce the Short Long Code (SLC) Manager GUI and API as well as data requirements for the submission of a mapping between short codes and long codes for Euronext Cash and Derivative Markets, Euronext Block MTF, and Bourse de Luxembourg.
30/04/2024	Saturn Short Long Code Management - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v3.0.	Saturn	Reporting interfaces Specifications Saturn Future release The purpose of this document is to introduce the Short Long Code (SLC) Manager GUI and API as well as data requirements for the submission of a mapping between short codes and long codes for Euronext Cash and Derivative Markets, Euronext Block MTF, and Bourse de Luxembourg.
24/04/2024	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.35.0	Saturn	Reporting interfaces Specifications Saturn Future release Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.35.0
24/04/2024	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.35.0 +TC	Saturn	Reporting interfaces Specifications Saturn Future release Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.35.0 +TC
21/06/2023	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.25.0	Saturn	Reporting interfaces Specifications Saturn Production This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages.
13/04/2023	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.24.0	Saturn	Reporting interfaces Specifications Saturn BITA Optiq migration Production This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages.
13/04/2023	Saturn Web Services - Detailed Functional Specification - Euronext Cash and Derivatives Markets - External - v5.24.0 +TC	Saturn	Reporting interfaces Specifications Saturn BITA Optiq migration Production This specification document is related to the Euronext Saturn Web Services, part of Euronext’s Reporting Services. Saturn offers a REST API which is used to access the services of the gateway. The purpose of this document is to describe the technology and the supported messages.
22/12/2022	Euronext Saturn MIFID II Commodities Positions Reporting v1.14	Saturn	Reporting interfaces Specifications Saturn Production Euronext Saturn MIFID II Commodities Positions Reporting v1.14
21/12/2022	Saturn Error Codes and Reporting Types V1.1	Saturn	Reporting interfaces Specifications Saturn Production The purpose of this document is to provide customers with a description of all the reporting types authorized by Euronext’s reporting tool, Saturn, and an explanation of all the possible error codes received. The APA/ARM sections of this document complIes with the UK DRSP regulatory framework governance.
14/06/2022	Euronext Secure Communications Standards v1.0	End of Day service, Euronext File Services, Plug, Saturn, TCS	Reporting interfaces Web Order Entry Specifications End of Day service Euronext File Services Plug Saturn TCS Production Euronext Secure Communications Standards v1.0
11/01/2021	Euronext ShortLongCode Management Application v2.4	Cash - Regulated Markets, Derivatives - Regulated Markets, Saturn	Reporting interfaces Specifications Cash - Regulated Markets Derivatives - Regulated Markets Saturn Production The purpose of this document is to introduce the Short Long Code (SLC) Manager GUI and API as well as data requirements for the submission of a mapping between short codes and long codes for Euronext Cash and Derivative Markets, Euronext Synapse, Euronext Block MTF, Sigma-X and Bourse de Luxembourg.
09/10/2019	MiFID II Commodity Positions Reporting	Saturn	Reporting interfaces Specifications Saturn Production This client specification document is related to the Euronext Saturn Web Services, part of the Euronext Global Reporting Solution dedicated to answer the MiFID II reporting and publication requirements. Saturn offers a REST API which can be used to access the reporting services. The purpose of this document is to describe the technology and the supported messages for Commodity Position Reporting requirements under MiFID II
30/07/2019	Short Long Code Management (SLC Manager)	Cash - Regulated Markets, Saturn	Reporting interfaces Specifications Cash - Regulated Markets Saturn Production Short and long code mapping submission process to Euronext Saturn for purposes of Order Storage under MiFID II

Type: Sample Files
03/06/2024	Sample TR file amendment.Short Selling Indicator	Saturn	Reporting interfaces Sample Files Saturn Future release Sample .csv file for amendment
03/06/2024	Sample TR file disaggregated transactions	Saturn	Reporting interfaces Sample Files Saturn Future release Sample .csv file for reporting disaggregated transactions
21/12/2022	Euronext Commodity Reporting - Position Holder Form V1.0	Derivatives - Regulated Markets, Saturn	Reporting interfaces Sample Files Derivatives - Regulated Markets Saturn Production Template of the Position Holder Form
19/09/2018	Saturn example of OBOE upload file	Saturn	Reporting interfaces Sample Files Saturn Production Sample file for Saturn OBOE upload file
19/09/2018	Saturn example of APA-ARM upload file	Saturn	Reporting interfaces Sample Files Saturn Production Sample file for Saturn APA ARM upload file

Type: Functional Overview + Specifications
07/05/2024	Euronext CFTS Reconciliation Service - Golden and Delta Files	Cash - Regulated Markets, Common File Transfer System /CFTS, Derivatives - Regulated Markets		Optiq Order Entry Reporting interfaces Functional Overview Specifications Cash - Regulated Markets Common File Transfer System /CFTS Derivatives - Regulated Markets Future release This document is for all Euronext Trading Members and presents the new Reconciliation Service that Euronext is offering to allow a wider verification of trades in the case of failure and/or failover. This service is available via the CFTS application and generates Golden Files and Delta Files.

Type: Migration Guidelines
27/11/2023	Migration Guidelines - Borsa Italiana Optiq Migration v5.2	Cash - Regulated Markets, Derivatives - Regulated Markets, End of Day service, ETP Access, Euronext File Services, Risk Guard, Saturn, TCS	Optiq Market Data Optiq Order Entry Reporting interfaces Web Order Entry Migration Guidelines Cash - Regulated Markets Derivatives - Regulated Markets End of Day service ETP Access Euronext File Services Risk Guard Saturn TCS BITA Optiq migration Production Migration Guidelines - Borsa Italiana Optiq Migration v5.2
02/10/2023	Member guidelines for Disaster Recovery 14 October 2023	Cash - Regulated Markets, Derivatives - Regulated Markets	Data Centre Services Optiq Market Data Optiq Order Entry Reporting interfaces Web Order Entry Migration Guidelines Cash - Regulated Markets Derivatives - Regulated Markets Production The purpose of this document is to inform Euronext clients about the agenda and activities related to the Euronext 2023 Disaster Recovery Tests.
04/08/2023	Migration Guidelines - Borsa Italiana Optiq Migration v5.0	Cash - Regulated Markets, Derivatives - Regulated Markets, End of Day service, ETP Access, Euronext File Services, Risk Guard, Saturn, TCS	Optiq Market Data Optiq Order Entry Reporting interfaces Web Order Entry Migration Guidelines Cash - Regulated Markets Derivatives - Regulated Markets End of Day service ETP Access Euronext File Services Risk Guard Saturn TCS BITA Optiq migration Production The intended audience of this document is any client of trading activities (Trading Member Firm, ASP, ESP, ISV, Data Vendor)¹ on the: - Legacy Euronext markets: already connected to Optiq® for the other markets operated by Euronext - Italian markets: connected to Borsa Italiana markets and moving to Optiq®, TCS and/or Saturn (reporting) features ¹ Please note that dedicated migration guidelines for issuers will also be issued.
26/10/2022	Euronext Data Centre - Migration Guidelines v2.3	Cash - Regulated Markets, Derivatives - Regulated Markets, Luxembourg Stock Exchange, Saturn, TCS	Data Centre Services Optiq Market Data Optiq Order Entry Reporting interfaces Web Order Entry Migration Guidelines Cash - Regulated Markets Derivatives - Regulated Markets Luxembourg Stock Exchange Saturn TCS Production Euronext Data Centre - Migration Guidelines v2.3

Type: Conformance Tests Documents
10/08/2021	Saturn Conformance Test Script V2.1	Saturn		Reporting interfaces Web Order Entry Conformance Tests Documents Saturn Production The purpose of this document is to provide clients with a description of the Saturn conformance test.

IT Documentation by scope

1 Please note that dedicated migration guidelines for issuers will also be issued.

¹ Please note that dedicated migration guidelines for issuers will also be issued.