Dimon’s Warnings on Credit Quality Overshadow Revenue Beats

JPMorgan Chase & Co. Chief Executive Officer Jamie Dimon sounded warnings on the potential for a deterioration in credit quality, a cautionary note that put a damper on the firm’s surge in trading and investment-banking revenue.

While the US economy remains resilient, there are “signs of a softening, particularly in job growth,” Dimon said Tuesday as the bank reported third-quarter results. “There continues to be a heightened degree of uncertainty stemming from complex geopolitical conditions, tariffs and trade uncertainty, elevated asset prices and the risk of sticky inflation.”

Shares of the bank slumped 4.4% to $294.43 at 10 a.m. in ...