One of the most widely recognized investing principles is portfolio diversification. Surprisingly, novice and seasoned investors alike often misinterpret the true meaning of diversification. A common misconception is that diversification means no more than investing in many different companies. Subscribers to this fallacy may fill their portfolio with high profile glamour stocks, for example, that appear in the headlines day after day. Akin to a collection of unrelated shiny objects, these investments typically offer few of the benefits of diversification. A well-diversified portfolio bears little resemblance to a random collection of shiny objects.