By Louis Goss JP Morgan Chase’s investment banking revenues could drop by as much as 50 per cent in the third quarter of 2022, one the Wall Street bank’s most senior executives has warned. The bank’s president and chief operating officer Daniel Pinto said he expects JP Morgan’s investment banking fees to be 45-50 per cent lower than the $3.3bn it achieved in Q3 last year, according to the Financial Times. The forecast comes as the bank’s fees have already fallen 44 per cent over the first six months of 2022, following a blockbuster year for dealmaking in 2021. The slump raises the prospect of …