The advantages of investing outside the United States go beyond diversification. Foreign economies provide more options to consider, when you’re looking for the best investments. Consider this: Just as you might be excited by the profit prospects of a certain company, so you may be optimistic about the growth potential of a given country or region of the world. If you invest only in the U.S. you limit yourself and stand to miss out on some great companies. Even after run-ups, there can still be some significant “bottom fishing” opportunities in foreign markets where prices have fallen steeply.