I.-The Chairman of the Autorité des marchés financiers or his appointed representative may require any person to take measures to reduce the size of his position or exposure in a financial instrument, in a unit referred to inArticle L. 229-7 of the Environment Code or in the assets referred to in II of Article L. 421-1.
II-The Chairman of the Autorité des marchés financiers or the representative he appoints may limit the ability of any person to acquire or dispose of a commodity derivative, in particular by setting limits on the volume of a position that any person may hold at any time.
III – The Autorité des marchés financiers shall notify the European Securities and Markets Authority and, where applicable, the competent authorities of other Member States of the European Union or parties to the Agreement on the European Economic Area of any decision taken pursuant to I or II.
Where the Autorité des marchés financiers is notified by a competent authority of another Member State of the European Union or of another State party to the Agreement on the European Economic Area of decisions of the kind referred to above, its Chairman or the representative he designates may take the measures referred to in I or II, in compliance with the provisions of this paragraph, if he considers that this is necessary to achieve the objective pursued by the latter authority.