A well-diversified investment portfolio is the gold standard for retirement. To construct one, investors need a solid understanding of a couple of key concepts, which we’ll cover today. But first, we have to remember one crucial thing—constructing a diverse portfolio is only half the battle. Maintaining a diversified portfolio is the other half. With that in mind, we’ll discuss how to build a diverse investment portfolio, and we hope to bring you advice that is applicable both if you are a retiree or a younger investor. Diversification is the name of the game here—this isn’t just a strategy bu…