Things weren't much better across the company's business portfolio. Revenue from bond trading fell by 21%, and even equity market revenue, which posted some of the smallest losses within the company, fell by 3% year over year. Company CEO Jamie Dimon took an optimistic tone toward the earnings miss by citing the volatility of the financial world, but investors shouldn't just dismiss JPMorgan's poor results and across-the-board revenue disappointment. Yes, the bank is moving past of its myriad legal hurdles, and its ability to keep costs down is inspiring for investors. But increased regulatory scrutiny over the big banks means JPMorgan could struggle to drive its lagging business higher in coming quarters with interest rates still sitting around record lows and the mortgage industry in a big slump.