On 1 August 2018, the European Securities and Markets Authority (ESMA) published data for the systematic internaliser (SI) calculations under MiFID II. The data on the total volume and number of transactions executed within the EU has been published to help market participants in the performance of the SI test under article 4(1)(20) of MiFID II. The published data includes only aggregated EU-wide data for equity and equity-like instruments and bonds. For all other asset classes, the mandatory SI-assessment will only apply after the first publication of the data for those asset classes on 1 February 2019.