We have published a direction clarifying*how an EEA market operator may make an application to become a recognised overseas investment exchange (ROIE)*(PDF), to enable the participation of the exchange in UK markets, should they no longer be able to rely on MiFID II passport rights once the UK leaves the EU. Overseas investment exchanges which do not carry on regulated activities in the United Kingdom need take no action.
https://www.fca.org.uk/news/statemen...tment-exchange
https://www.fca.org.uk/news/statemen...tment-exchange