2.
Within four weeks of the sending of the notification, both authorities shall calculate the turnover for that financial instrument in their respective markets over the period of the previous calendar year. If the results of that calculation indicate that the turnover is higher in the market of the contesting competent authority, that market shall be the most relevant market for that financial instrument. Where that financial instrument is of a type specified in Article 9(6)(a) or (b), that market shall also be the most relevant market for any derivative contract or financial contract for differences or transferable security which is covered by Article 4(1)(18)(c) of Directive 2004/39/EC and in respect of which that financial instrument is the underlying.
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Source: EUR-Lex (Cellar) · retrieved 2026-10-30 · Text as adopted (Official Journal); later amendments are not incorporated in this text.