The head of JP Morgan’s North American credit trading has become the latest senior manager to leave the US bank in the wake of its reorganisation of the fixed income division, as new heads Daniel Pinto and Matt Zames stamp their authority on the business.

Eric Rosen, head of North American credit trading, has announced his intention to leave JP Morgan, just weeks after Pinto and Zames were promoted to co-heads of global fixed income after a reshuffle of senior management following the departure of Bill Winters, the former co-chief executive of the investment bank.