(3)In order to allow for a minimum of liquid equity instruments to exist in all parts of the Union, the competent authority of a Member State where fewer than five liquid financial instruments for each of shares, depositary receipts, exchange traded funds and certificates are traded, should be able to designate one or more additional liquid financial instruments, provided that the total number of financial instruments which are considered to have a liquid market does not exceed five in each of these categories of financial instruments.