Pound traders glued to desks as Brexit vote meets market's witching hour

A shock 320-vote majority for May could lead the pound to rally more than 6%

Currency traders are taking no chances as the UK Parliament’s Brexit vote late Tuesday will come during thin liquidity heading into the market’s witching hour.

Money managers are canceling evening plans to stay at the office to ensure they don’t miss market swings like those seen during sterling’s 2016 flash crash or the chaos that followed the Swiss National Bank unexpectedly dropping its currency floor in 2015. The pound could move as much as 6 per cent in either direction depending on the vote’s outcome, strategists say.

Currency traders are taking no chances as the UK Parliament’s Brexit vote late Tuesday will