Banks in London are informing members of their staff complement in certain departments to locate to Europe. These include Goldman Sachs and JPMorgan who have asked a 100 and 200 personnel respectively to do so in order to be at their new location before the Brexit deadline of January the 1st. They have asked then now to ensure that they are in their new locations by then and do not want to leave it until then for the move to occur.
The European Union has already informed the UK they must be flexible and ready to compromise in meetings next week if the UK wished to conclude a trade agreement with the European Union as set out in the agreement by next month in October.