Aquis Exchange is preparing to offer EU27 stocks in both Paris and London on day one of a no-deal Brexit, a move that could see it steal a march on larger rivals that will initially move all trading in these shares to the bloc.

The UK’s stock markets are scrambling to prepare for the possibility of the country leaving the European Union without a deal on Friday. This could cause immediate disruption to the billions of euros of equities traded every day in the City.