EURONEXT_Registration_Document_2017

OTHER INFORMATION

Independent Auditors Report

components comprise Euronext Paris SA, Euronext Technologies SAS, Euronext Amsterdam N.V. and Euronext N.V. Two components, Interbolsa SA and Fastmatch Inc, were subject to specific risk- focused audit procedures as they include significant risk areas. In total these procedures represent approximately 90%of the group’s total assets and 96% of profit before income tax. For the remaining entities we performed, among other things, analytical procedures to corroborate our assessment that there were no significant risks of material misstatements within those components. We applied a central combined approach on the audit of revenue, trade receivables, trade payables, cash and cash equivalents, property, plant and equipment and ITGC’s for the French and Dutch group components. The group consolidation and financial statement disclosures are audited by the engagement team in the Netherlands. We also used component auditors, who are familiar with the local laws and regulations, for the specific risk-focused audit procedures. Where the work was performed by component auditors, we determined the level of involvement we needed to have in their audit work to be able to conclude whether sufficient appropriate audit evidence has been obtained. By performing the procedures mentioned above at group entities, together with additional procedures at group level, we have been able to obtain sufficient and appropriate audit evidence about the group’s financial information to provide an opinion about the consolidated financial statements as a whole. Our key audit matters Key audit matters are those matters that, in our professional judgment, were of most significance in our audit of the financial statements. We have communicated the key audit matters to the supervisory board. The key audit matters are not a comprehensive reflection of all matters discussed. These matters were addressed in the context of our audit of the financial statements as a whole and in forming our opinion thereon, and we do not provide a separate opinion on these matters.

We are independent of Euronext N.V. in accordance with the EU Regulation on specific requirements regarding statutory audit of public-interest entities, the Wet toezicht accountantsorganisaties (Wta, Audit firms supervision act), the Verordening inzake de onafhankelijkheid van accountants bij assurance-opdrachten (ViO, Code of Ethics for Professional Accountants, a regulation with respect to independence) and other relevant independence regulations in the Netherlands. Furthermore we have complied with the Verordening gedrags- en beroepsregels accountants (VGBA, Dutch Code of Ethics). We believe the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion.

Materiality

Materiality

€ 15.5 million (2016: € 13.7 million)

Benchmark applied 5% of profit before tax Explanation

Based on our professional judgement we consider profit before tax as the most appropriate basis to determine materiality as it is the key performance measure for the users of the financial statements.

We have also taken misstatements into account and/or possible misstatements that in our opinion are material for the users of the financial statements for qualitative reasons. We agreed with the supervisory board that misstatements in excess of €0.7 million, which are identified during the audit, would be reported to them, as well as smaller misstatements that in our view must be reported on qualitative grounds. Scope of the group audit Euronext N.V. is the parent company of a group of entities. The financial information of this group is included in the consolidated financial statements of Euronext N.V. A full scope audit of the financial information is performed based on significance and risk characteristics of the group components. In 2017, four components have been subject to a full scope audit as those components are individually significant to the Group. These

7

207

2017 REGISTRATION DOCUMENT