> For the complete documentation index, see [llms.txt](https://www.mica.wtf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.mica.wtf/mifid-ii/title-vii-delegated-acts-art.-89-97/technical-standards/rts/2019-443-amending-the-possibility-to-adjust-the-average-daily.md).

# 2019/443 - amending — the possibility to adjust the average daily

amending — the possibility to adjust the average daily number of transactions for a share where the trading venue with the highest turnover of that share is located outside the Union

|                 |                                                                    |
| --------------- | ------------------------------------------------------------------ |
| **Instrument**  | Commission Delegated Regulation (EU) 2019/443 (RTS)                |
| **Drafted by**  | ESMA                                                               |
| **Legal basis** | Article 49(3) MiFID II                                             |
| **Status**      | Machine-verified; awaiting MiFID II Level-2 family sample approval |
| **Source**      | [EUR-Lex](https://eur-lex.europa.eu/eli/reg_del/2019/443/oj/eng)   |

## Recitals

1. Commission Delegated Regulation (EU) 2017/588 (2) sets out the mandatory tick size regime for shares, depositary receipts and certain exchange-traded funds. In particular, under Delegated Regulation (EU) 2017/588 the minimum tick size applicable to shares and depositary receipts is calibrated on the basis of the average daily number of transactions on the most liquid trading venue in the Union. This metric is a good and simple liquidity indicator for the vast majority of those financial instruments. It is however not suited to shares that are admitted to trading or traded in the Union and a third country concurrently, where the trading venue with the highest turnover in those shares is located outside the Union. In that case, there is a risk that the mandatory tick size, determined on the basis of Union trading volumes alone, will be based only on a small subset of the overall trading volumes. It is therefore important that competent authorities are allowed to adjust the average daily number of transactions for such shares so as to reflect the overall liquidity profile of those shares. In order to alleviate constraints around data availability from third-country trading venues and allow for the possibility to use other public data, it is also important to provide competent authorities with sufficient flexibility as to the methodology used to take into account the liquidity available on those third-country trading venues.
2. The mandatory tick size was introduced to harmonise price increments on trading venues in the Union and to preserve market depth, liquidity and the orderly functioning of equity trading in the Union. To achieve those objectives, it is important that information on the adjusted average daily number of transactions used for determining tick sizes applicable to a share is available to all trading venues that offer trading in that share at the same time and that those trading venues start applying any adjusted average daily number of transactions on the same day. To that end, all competent authorities that supervise trading venues where the share concerned is traded should be informed about any adjustments to the average daily number of transactions for that share prior to the publication of those adjustments and trading venues should be given sufficient time to incorporate those adjustments in their systems.
3. To ensure legal certainty and predictability of the mandatory tick size regime, it is important that all trading venues apply tick sizes based on the adjusted average daily number of transactions that reflects the overall liquidity at the same time.
4. Delegated Regulation (EU) 2017/588 should therefore be amended accordingly.
5. This Regulation is based on the draft regulatory technical standards submitted by ESMA to the Commission.
6. ESMA has conducted open public consultations on the draft regulatory technical standards on which this Regulation is based, analysed the potential related costs and benefits and requested the opinion of the Securities and Markets Stakeholder Group established in accordance with Article 37 of Regulation (EU) No 1095/2010 of the European Parliament and of the Council (3),

## Article 1

In Article 3 of Delegated Regulation (EU) 2017/588, the following paragraphs 8, 9 and 10 are added: ‘8. The competent authority for a specific share may adjust the average daily number of transactions calculated or estimated by that competent authority for that share in accordance with the procedure set out in paragraphs 1 to 7 where all of the following conditions are met:\
**(a)** the trading venue with the highest turnover for that share is located in a third country; **(b)** where that average daily number of transactions has been calculated and published in accordance with the procedure set out in paragraphs 1 to 4, it is equal to or greater than one. When adjusting the average daily number of transactions for a share, the competent authority shall take into account the transactions executed on the third-country trading venue with the highest turnover for trading of that share. **9.** The competent authority that adjusted the average daily number of transactions for a share in accordance with paragraph 8 shall ensure the publication of that adjusted average daily number of transactions. Prior to that publication, the competent authority shall communicate the adjusted average daily number of transactions for that share to the competent authorities of the other trading venues operating in the Union where that share is traded. **10.** Trading venues shall apply the tick sizes of the liquidity band corresponding to the adjusted average daily number of transactions from the second calendar day after its publication.’.

## Article 2

This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://www.mica.wtf/mifid-ii/title-vii-delegated-acts-art.-89-97/technical-standards/rts/2019-443-amending-the-possibility-to-adjust-the-average-daily.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
