Retiring ... a view of the home of former JP Morgan chief investment officer Ina Drew in Short Hills, New Jersey. Credit:Reuters

Corporate filings show that following her resignation she is entitled to $US400,000 in severance as well as a share award that was worth $US16 million yesterday. On top of this, she has unexercised options that were valued at the end of last year at $US3.44 million, a series of retirement benefits worth a further $US2.63 million, and a $US9.87 million deferred compensation pot built up over several years.

Ms Drew, who spent more than 30 years at the bank, is not expected to be the only executive to depart in the wake of a loss that has damaged JP Morgan's reputation for risk management. Achilles Macris, who ran the London division of JP Morgan's chief investment office (CIO), and Javier-Martin-Artajo, a trader who worked in the unit, are also reported to be leaving.

"Despite our recent losses, Ina's vast contributions to the company should not be overshadowed by these events," said Jamie Dimon, the bank's chairman and chief executive.

The pressure on Mr Dimon will be increased on Tuesday at the bank's annual meeting in Tampa, Florida, where shareholders will want to hear a fuller account of what went wrong. The losses, disclosed on Thursday, have already wiped more than $15bn from the bank's market value.