1.The competent authority of the trading venue where a share or depositary receipt was first admitted to trading or has been traded for the first time before the date of application of Regulation (EU) No 600/2014, shall collect the necessary data and calculate and ensure the publication of the average daily number of transactions for that financial instrument and for that trading venue within the following time limits:
(a)no later than 4 weeks prior to the date of application of Regulation (EU) No 600/2014 where the date on which shares or depositary receipts are traded for the first time on a trading venue within the Union is a date not less than 10 weeks prior to the date of application of Regulation (EU) No 600/2014;
(b)no later than the date of application of Regulation (EU) No 600/2014 where the date on which financial instruments are traded for the first time on a trading venue within the Union is a date falling within the period commencing 10 weeks prior to the date of application of Regulation (EU) No 600/2014 and ending on the day preceding the date of application of Regulation (EU) No 600/2014.
(a)where the date on which shares or depositary receipts are traded for the first time on a trading venue within the Union is a date not less than 16 weeks prior to the date of application of Regulation (EU) No 600/2014, the calculation shall be based on data available for a 40-week reference period commencing 52 weeks prior to the date of application of Regulation (EU) No 600/2014;
(b)where the date on which shares or depositary receipts are traded for the first time on a trading venue within the Union is a date within the period commencing 16 weeks prior to the date of application of Regulation (EU) No 600/2014 and ending 10 weeks prior to the date of application of Regulation (EU) No 600/2014, the calculation shall be based on data available for the first 4-week trading period of the financial instrument;
(c)where the date on which shares or depositary receipts are traded for the first time on a trading venue within the Union is a date falling within the period commencing 10 weeks prior to the date of application of Regulation (EU) No 600/2014 and ending on the day preceding the date of application of Regulation (EU) No 600/2014, the calculation shall be based on the trading history of the share or depositary receipt or other financial instruments considered to have similar characteristics to those shares or depositary receipts.
3.The tick sizes of the liquidity band corresponding to the published average daily number of transactions referred to in paragraph 1 shall be applied until 1 April of the year following the date of application of Regulation (EU) No 600/2014. During that period, competent authorities shall ensure that the tick sizes for financial instruments referred to under points (b) and (c) of paragraph 2 and for which they are the competent authority, do not contribute to disorderly trading conditions. Where a competent authority identifies a risk for the orderly functioning of the markets due to such tick sizes, it shall determine and publish an updated average daily number of transactions for the relevant financial instruments to address that risk. It shall do so on the basis of longer and more comprehensive trading history data of those instruments. Trading venues shall immediately apply the liquidity band corresponding to that updated average daily number of transactions. They shall do so until 1 April of the year following the date of application of Regulation (EU) No 600/2014 or until any further publication by the competent authority in accordance with this paragraph.