The European Securities and Markets Authority has updated its list of questions and answers regarding data reporting under the Market in Financial Instruments Directive (MiFID II) and Regulation (MiFIR).

The purpose of this document is to promote common supervisory approaches and practices in the application of MiFID II and MiFIR in relation to regulatory data reporting topics. It provides responses to questions posed by the general public and market participants in relation to the practical application of the EU's data reporting rules. Sometimes there is a need to convert some of the material into ESMA guidelines and recommendations.

The document includes updated Q&As about:

• unknown dates of admission;
• the concept of 'the underlying'; and
• non-EU branches of EU investment firms.