(18)Persons administering their own assets and undertakings, who do not provide investment services or perform investment activities other than dealing on own account in financial instruments which are not commodity derivatives, emission allowances or derivatives thereof, should not be covered by the scope of this Directive unless they are market makers, members or participants of a regulated market or an MTF or have direct electronic access to a trading venue, apply a high-frequency algorithmic trading technique, or deal on own account when executing client orders.