1. Investment firms shall identify classes of financial instruments for which they execute orders on behalf of clients in accordance with the Annex.
2. Investment firms shall identify separate subclasses of financial instruments, within the classes set out in the Annex, in either of the following circumstances:
((a))
where a significant number of orders is executed or is expected to be executed in financial instruments with different methods of execution within the same class of financial instruments, as referred to in the Annex;
((b))
where the classes set out in the Annex do not allow for an effective monitoring and assessment of the order execution quality.