1.An investment firm that engages in a high-frequency algorithmic trading technique shall immediately after order submission record the details of each submitted order using the format set out in tables 2 and 3 of Annex II.
2.An investment firm that engages in a high-frequency algorithmic trading technique shall update the information referred to in paragraph 1 in the standards and formats specified in the fourth column of tables 2 and 3 of Annex II.
3.The records referred to in paragraphs 1 and 2 shall be kept for five years from the date of the submission of an order to a trading venue or to another investment firm for execution.
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.
It shall apply from 3 January 2018.