The C.E.O. of Swiss bank UBS has quit on a suspected £1.5 billion ($2.3bn) rogue-trading default.
The decision is part of a biggest surprised victory at the bank which will also observe it shrivel its investment banking division to decline its risks..
"Oswald Gruebel thinks that it is his responsibility to think liability for the current unauthorized trading blunder," Chairman Kaspar Villiger said.
London-based trader Kweku Adoboli has been charged over the concern.
Mr. Adoboli was detained last week and accused with deception and wrong bookkeeping. He has been investigated in under arrest until 20 October.
Mr. Adoboli, from east London, submit no request for bail and gave no sign of how he would beseeched when he come out in court on Thursday.
His lawyer, Patrick Gibbs, said Mr. Adoboli was "sorry away from statements for what had occurred.
"He went to UBS and explain them what he had made, and stands now disgusted at the scale of the outcomes of his terrible faults," he said.
UBS said Europe, Middle east and Africa chief Sergio P Ermotti would take charge as acting chief executive.
The trading hammerings are awkwardness to the bank which is still improving from its near devastate during the 2008 financial catastrophe.
The company’s largest shareholder, Singapore Investment Corp (GIC) has showed its "discontent and worry" at descends at the bank which may have led to the failures.
The bank's board said it would look for adopting "easing steps" to handle with any malfunctions.
M.r Villiger also assured the bank would be further 'customer centric' in the days to come.
"The Investment Bank will be fewer composite, carry less danger and utilize less investment to create consistent returns," he said.
This is probably to mean the bank will take less risk, particularly in its investment banking department.
Mr. Villiger appreciated the responsibility of Mr Gruebel, 67, since he was brought out of retirement in 2009 to reform UBS after it almost ruined under the weight in excess of $50bn of toxic assets.
A permanent UBS board meeting that had been planned to end on Friday is carrying on by conference request, reports said.
