Sterling reversed early gains while the safe-haven yen staged a rebound in Asia on Friday as confidence that Britain will remain in the European Union was badly shaken after the city of Sunderland voted more strongly than expected to leave. "The pound is plummeting as Sunderland votes heavily for Leave," said Joe Rundle, head of trading at ETX Capital. "It's very jittery and I suppose that's very much going to be the order of the day until we see final results being announced," said Robert Rennie, senior currency strategist at Westpac in Sydney.
