Paris is also the chief supporter of proposals to tighten the rules governing how funds manage their investments across borders, so-called delegation, to pressure firms to move more of their business to the EU. French financial markets regulator the Autorite des Marches Financiers has asked French - based firms with offices in London , and French companies with British clients , to outline their financial preparations . It wants to know how they would cope with the loss of an EU financial " passport " allowing them to trade throughout the EU . Some fund managers say the letters are premature , asking the regulator to wait until a transition deal is agreed . Paris backs proposals to change rules governing how funds manage investments across borders .
French financial markets regulator the Autorite des Marches Financiers has asked French - based firms with offices in London , and French companies with British clients , to outline their financial preparations . It wants to know how they would cope with the loss of an EU financial " passport " allowing them to trade throughout the EU . Some fund managers say the letters are premature , asking the regulator to wait until a transition deal is agreed . Paris backs proposals to change rules governing how funds manage investments across borders .