For the purposes of this Regulation, the following definitions apply:
‘relevant operator’ means:
an investment firm operating a multilateral trading facility (MTF);
an investment firm operating an organised trading facility (OTF);
a market operator operating an MTF;
a market operator operating an OTF;
‘asset classes’ means the categories of financial instruments as set out in Section C of Annex I to Directive 2014/65/EU.