Nevertheless, JPMorgan CEO Jamie Dimon recently told Bloomberg the U.S. is still the best place to invest: "If you were to take all of your money and put it in one country, it would still be America. I mean, it's still the most prosperous nation on the planet."

CEO Jamie Dimon's time as top boss is winding down when his stature on Wall Street and in the nation's capital is arguably at an all-time high. Investors, as a result, may not be ready for the 69-year-old executive to exit the stage just yet.