The London Stock Exchange ( LSE ) will move trading in euro - denominated shares via its Turquoise platform to a hub in the Netherlands if the UK leaves the EU without a deal . British, Swiss and U.S. shares would remain on its existing platform in London, the LSE said in a statement. However , Swiss and US shares would remain in London . If the UK leaves without a deal on 12 December , it would reintroduce European Economic Area shares on its Euro platform during 2019 , LSE said . Similar preparations in the event of a no - deal outcome have been made by the Cboe platform .
The London Stock Exchange ( LSE ) will move trading in euro - denominated shares via its Turquoise platform to a hub in the Netherlands if the UK leaves the EU without a deal . However , Swiss and US shares would remain in London . If the UK leaves without a deal on 12 December , it would reintroduce European Economic Area shares on its Euro platform during 2019 , LSE said . Similar preparations in the event of a no - deal outcome have been made by the Cboe platform .