A measure of implied overnight price swings for the pound versus the dollar climbed to the highest level on record as Britons voted on whether to remain a member of the European Union or split from the 28-nation bloc. The gauge, based on option prices, touched 119.7 percent Thursday, the highest since Bloomberg began collecting the data in 1998.
Photographer: Chris Ratcliffe/Bloomberg
Overnight Pound Volatility Surges to Record Amid EU Vote: Chart
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