I have been investing in dividend growth stocks for the past decade. There have been hundreds of other fellow dividend investors, who have also invested in dividend paying companies over the same period of time. There are some, who have invested for even a longer amount of time. Unfortunately, when you invest for a long time, you may end up with a few very successful positions, which account for a disproportionate amount of your portfolio. The question I have been getting recently has been what to do in this situation. I would note that this problem generally happens to investors who are not adding money to their portfolios anymore. A few examples cited include Realty Income (NYSE:O), V.F. Corporation (NYSE:VFC) and Altria (NYSE:MO), which have delivered fantastic returns since 2008 - 2009.
This of course is a great problem to have. If you are a long-term investor, it is very much possible that after a decade or two of patient investing, the power of compounding will result in many companies which not only pay more and more in annual dividend income, but also result in large unrealized gains for the stockholder. As a result, there may be several companies in your portfolio, which could end up with a very large portfolio weight. In my opinion, you own too much in an individual security if it accounts for more than 4% - 5% of your portfolio's value.