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In this act Article 8 of 24
Text as of 26 Oct 2026 · Commission Delegated Regulation (EU) 2017/584, OJ L 87, 31.3.2017 · Same wording as today’s text.Today’s text

Article 8 — Testing of the trading systems (Article 48(1) of Directive 2014/65/EU)

Financial servicesLevel 2RTSMiFID IIIn forceOfficial source

8(1)

1.Trading venues shall, prior to deploying or updating a trading system, make use of clearly defined development and testing methodologies which ensure at least that:

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8(1)(a)
(a)the trading system does not behave in an unintended manner;
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8(1)(b)
(b)the compliance and risk management controls embedded in the systems work as intended, including the automatic generation of error reports;
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8(1)(c)
(c)the trading system can continue to work effectively in case of a significant increase of the number of messages managed by the system.
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8(2)

2.Trading venues shall be able to demonstrate at all times that they have taken all reasonable steps to avoid that their trading systems contribute to disorderly trading conditions.

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