For the purposes of this Regulation, the following definitions apply:
(1)‘portfolio trade’ means transactions in five or more different financial instruments where those transactions are traded at the same time by the same client and as a single lot against a specific reference price;
(2)‘give-up transaction’ or ‘give-in transaction’ means a transaction where an investment firm passes a client trade to, or receives a client trade from, another investment firm for the purpose of post-trade processing;
(3)‘securities financing transaction’ means a securities financing transaction as defined in Article 3(6) of Delegated Regulation (EU) 2017/577;
(4)‘systematic internaliser’ means an investment firm as defined in Article 4(1)(20) of Directive 2014/65/EU of the European Parliament and of the Council (1).