(Article 17(1) of Directive 2014/65/EU)

1. An investment firm shall test the conformance of its algorithmic trading systems and trading algorithms with:

(a) the system of the trading venue in any of the following cases:

(i) when accessing that trading venue as a member;

(ii) when connecting to that trading venue through a sponsored access arrangement for the first time;

(iii) where there is a material change of the systems of that trading venue;

(iv) prior to the deployment or material update of the algorithmic trading system, trading algorithm or algorithmic trading strategy of that investment firm.

(b) the system of the direct market access provider in any of the following cases:

(i) when accessing that trading venue through a direct market access arrangement for the first time;

(ii) when there is a material change affecting the direct market access functionality of that provider;

(iii) prior to the deployment or material update of the algorithmic trading system, trading algorithm or algorithmic trading strategy of that investment firm.