Article 27 › 1

With regard to financial instruments admitted to trading on regulated markets or traded on MTFs or OTFs, trading venues shall provide competent authorities with identifying reference data for the purposes of transaction reporting under Article 26. With regard to other financial instruments covered by Article 26(2) traded on its system, each systematic internaliser shall provide its competent authority with reference data relating to those financial instruments. Identifying reference data shall be made ready for submission to the competent authority in an electronic and standardised format before trading commences in the financial instrument that it refers to. The financial instrument reference data shall be updated whenever there are changes to the data with respect to a financial instrument. Those notifications are to be transmitted by competent authorities without delay to ESMA, which shall publish them immediately on its website. ESMA shall give competent authorities access to those reference data.

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Source: EUR-Lex CELLAR · retrieved 2026-09-04