(FILES) Screens display news and trading rates at the Euronext Stock Exchange services in Paris' financial district of La Defense on June 24, 2016 as Britain votes to leave the European Union, fuelling a wave of global uncertainty. European stock markets end up: Paris +0.86%, Frankfurt +0.94%, London +0.66%. (Photo by Thomas SAMSON / AFP) (Photo by THOMAS SAMSON/AFP via Getty Images)