JPMorgan Chase & Co’s (JPM.N) third-quarter markets revenue is running “about the same as everybody else,” Chief Executive Officer Jamie Dimon said on Friday after two major competitors had said their revenues were down about 5 percent from a year earlier. Dimon, speaking at an investor conference, did not give a percentage change for JPMorgan. Dimon said that during three volatile weeks in August the investment bank’s trading volume was “very slow” and while the results “weren’t really great,” he added they were “pretty good.