Brexit bump instills no confidence among bond traders

Revenue from fixed income, currency and commodities trading at the five biggest U.S. banks rose 21 percent to $13.1 billion in the second quarter from a year earlier, Reuters calculated from their reported results. The banks benefited from Britain's surprise vote to leave the European Union, which rippled across global markets and led to record currency volumes for some big banks. Some upcoming monetary policy decisions may spur more action, but Wall Street is unsure that this will be a turnarou