I.-The operator of an organised trading system shall take all measures necessary to comply with the prohibition set out in Article L. 420-2 for the execution of members’ orders on the system, whether by committing its own capital or the capital of any other legal entity belonging to the group to which it belongs.
II – The operator of an organised trading system may not carry on the business of a systematic internaliser within the same legal entity, nor may it be linked to a systematic internaliser in a way that contravenes I by making it possible for orders on an organised trading system to interact with orders or prices on a systematic internaliser.
III -An organised trading system may not be linked to another organised trading system in a way that allows orders executed on the different organised trading systems to interact.