A diversified portfolio tends to be harder to achieve than simply following the mantra to steer clear of putting all your investment eggs in one basket. This basic strategy can help, but it’s often not enough to avoid concentration risk—the risk of amplified losses that may occur from having a large portion of your holdings in a particular investment, asset class or market segment relative to your overall portfolio.
The first step in managing concentration risk is to understand how it might occur. Concentration can be the result of a number of factors: