The lazy portfolio is a passive approach to investing. The investor buys and holds on to a number of passive, low-risk stocks that they plan to rebalance every year. There are many ways to achieve a balanced mix. You can opt to do a 60/40 investment that combines U.S. dollars with foreign currency stocks. Another option is to combine stocks and bonds in your portfolio, which is a simple and low-maintenance portfolio that often works out well for low-to-medium risk investors.