Philip Hammond, U.K. chancellor of the exchequer, waits outside number 10 Downing Street in London, U.K., on Wednesday, March 22, 2017. Senior Goldman Sachs Group Inc. and Morgan Stanley executives said they're preparing to shift staff and operations from London to elsewhere in the European Union as Prime Minister Theresa May sets up the U.K.'s exit from the bloc. Photographer: Simon Dawson/Bloomberg via Getty Images
