Investment portfolios include aggressive, defensive, income, speculative, and hybrid portfolios. These portfolios usually contain a collection of stocks, bonds, and other financial instruments that help you diversify your investments. There are pros and cons to each, though generally speaking, you should choose a portfolio based on your risk tolerance. For example, those who can afford to play around with their money could invest in an aggressive portfolio, which includes financial products that have greater price fluctuations and the ability to have high gains. On the other hand, more risk-averse investors or those who are closer to retirement and are looking to secure more funds should consider a more defensive portfolio.