Metro Bank has defied uncertainty brought about by Britain’s vote to leave the EU and stuck to its guns on growth targets, reiterating Wednesday a pledge to double in size by 2020. The upstart lender, who counts Steve Cohen’s Point72 Asset Management as its largest shareholder, reported its second quarterly profit against a backdrop of overarching economic uncertainty and said that it has seen no significant change in customer behaviour since the U.K voted to leave the European Union in June last year.