Article 20 7.

The competent authority may require, either when an investment firm or market operator requests to be authorised for the operation of an OTF or on ad-hoc basis, a detailed explanation why the system does not correspond to and cannot operate as a regulated market, MTF, or systematic internaliser, a detailed description as to how discretion will be exercised, in particular when an order to the OTF may be retracted and when and how two or more client orders will be matched within the OTF. In addition, the investment firm or market operator of an OTF shall provide the competent authority with information explaining its use of matched principal trading. The competent authority shall monitor an investment firm’s or market operator’s engagement in matched principal trading to ensure that it continues to fall within the definition of such trading and that its engagement in matched principal trading does not give rise to conflicts of interest between the investment firm or market operator and its clients.