Sterling climbed to its highest level in two months last night as Ed Miliband looked to have been snubbed as Andy Burnham’s pick for Chancellor.
Shabana Mahmood was widely reported to have emerged as the leading candidate for No11, with Mr Miliband blocked by the incoming Prime Minister’s allies.
The pound then rose from $1.33 in early trading on Wednesday to $1.35 by the late afternoon – its strongest point since May 13.
Sterling also reached a one-year high against the euro at €1.18, indicating traders expected Ms Mahmood to take a more fiscally cautious approach than her Cabinet colleague.
Ms Mahmood is believed to have held talks on the economy with Mr Burnham last week, though their conversation primarily centred on her brief of home affairs.
Either way, the Makerfield MP’s allies are said to consider her the best pick for the role under a “broad church” Cabinet.
After he announced his intentions to stand in Makerfield, the first step on his short road to seizing power, the pound fell to a one-month low.
But since his by-election victory, Mr Burnham has taken a series of steps to reassure the markets.
In his first major speech after returning to Westminster, he vowed to stay inside Labour’s fiscal rules and turned away from his warnings that Britain was “in hock” to the bond markets.