The volume cap mechanism (Article 5 MiFIR)
Article 5 MiFIR on the single volume cap mechanism sets the threshold below which equity trading under the reference price waiver is allowed. Article 5 MiFIR is to be supplemented by a Commission delegated regulation defining how ESMA collates, calculates and publishes the transaction data required to calculate the single volume cap (1). As the single volume cap is calculated on the basis of a data set that is different from the data set used for the calculation of the double volume cap, the new single volume cap cannot be supplemented adequately by Commission delegated regulation (EU) 2017/577 (‘RTS 3’). In consequence, pursuant to Article 54(3) MiFIR, the rules on the double volume cap, as specified in RTS 3, continue to apply. The single volume cap will become applicable as from the date of application of the Commission delegated regulation adopted pursuant to Article 5(9) MiFIR.
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Source: EUR-Lex (Cellar) · retrieved 2026-09-07 · Text as adopted (Official Journal); later amendments are not incorporated in this text.