The Market Abuse Regulation, Regulation (EU) No 596/2014 (MAR) contains prohibitions on insider dealing, unlawful disclosure of inside information and market manipulation, and provisions to empower the regulators of Member States to prevent and detect these. The current MAR framework applies to financial instruments admitted to trading or traded on an EU trading venue. It also applies to financial instruments admitted to trading or traded elsewhere, where the price or value of such instruments depends on or has an effect on the price or value of a financial instrument admitted to trading or traded on an EU trading venue. Following exit, UK trading venues will cease to be EU trading venues and therefore MAR would not apply to financial instruments admitted to trading or traded on UK venues. This statutory instrument amends retained EU law related to market abuse so that it applies to financial instruments admitted to trading or traded on both UK as well as EU trading venues. It also transfer functions to the relevant UK authorities.
Also see EU Exit SI tracker