.Daniel Pinto, JPMorgan's chief executive of company and expenditure banking company. Simon Dawson|Bloomberg|Getty ImagesJPMorgan Chase shares dropped 7% Tuesday after the bank's head of state told professionals that assumptions for net rate of interest profit were as well optimistic.The present estimation for NII-- one of the main manner ins which banks earn money-- of $89.5 billion is excessive provided requirements for interest rates, JPMorgan president Daniel Pinto reckoned a reader at a financial conference.The figure "will be reduced," he said.The relocation was the New York-based bank's worst drop considering that June 2020, according to FactSet.This tale is creating. Feel free to check back for updates.