The Optimal Portfolio Interesting read and graphics from A wealth of Commonsense The problem when searching for the “optimal” portfolio is that it’s always changing. The optimal portfolio today is unlikely to be the optimal portfolio of the future. The only true optimal portfolio is only known with the benefit of hindsight. Successful investors know there’s no such thing as a perfect portfolio. So you must understand and be willing to live with whatever drawbacks exist within the portfolio of your choosing. And then, come hell or high water, you must be willing to stick with that portfolio. The strategy you either can’t or won’t stick with is indistinguishable from a failed investment plan. This year has been kind to stock and bond markets around the globe: Cont..