Article 18 4.

Member States shall require that investment firms and market operators operating an MTF or an OTF have arrangements to identify clearly and manage the potential adverse consequences for the operation of the MTF or OTF, or for the members or participants and users, of any conflict of interest between the interest of the MTF, the OTF, their owners or the investment firm or market operator operating the MTF or OTF and the sound functioning of the MTF or OTF.