Head of largest US bank warns of risk of American stock market crash

Jamie Dimon said he would put the chance of a serious fall in the US market at ‘more like 30%’, when 10% is currently priced in. Photograph: Mike Segar/Reuters

The chance of the US stock market crashing is far greater than many financiers believe, the head of America’s largest bank has said.

Jamie Dimon, who is the chair and chief executive of the giant Wall Street bank JPMorgan Chase, said he was “far more worried than others” about a serious market correction, which he predicted could come in the next six months to two years.