JPMorgan Chase (NYSE: JPM) is off to a good start in October, with activity in investment banking and trading accelerating, consumer credit still looking good, and the bank set to report third quarter results on October 13. JPM closed October 5 at $332.38 with a market capitalization of approximately $883.5 billion.

What I find interesting is the breadth of the earnings engine. Capital markets activity has rebounded sharply, loan balances are still growing, net interest income is still elevated, and the bank is still returning more capital to shareholders. The key question for Q3 is, can JPMorgan keep these unusually strong returns and not have expenses and credit costs begin to increase more than revenue?