What is Diversification?

Diversification means not putting all your eggs in one basket. In investing, it means spreading your money across different companies, industries, asset types, and geographies so that no single bad outcome can seriously damage your overall portfolio.

Why does diversification reduce risk?

Because different investments tend not to move in the same direction at the same time. When one sector struggles, another might be thriving. When one country's market falls, another might be rising. Owning a mix means the poor performance of one part of your portfolio is cushioned by the steadier performance of the rest.

What does a diversified portfolio look like?

At its simplest, a diversified portfolio might hold a global index fund that invests in thousands of companies across dozens of countries. That single fund provides more diversification than most people could achieve by picking individual stocks. Adding a bond fund alongside it diversifies further, across asset types as well as geographies.

What does poor diversification look like?

Putting most of your money into one stock, one sector, or one country. Investors who held most of their wealth in technology stocks in 2000, or in financial stocks in 2008, learned an expensive lesson about concentration risk.

Does diversification mean owning lots of things?

Not necessarily. Owning 50 stocks in the same sector is not truly diversified. Owning three broad index funds covering global equities, bonds, and perhaps real estate can be highly diversified. Quality of diversification matters more than quantity of holdings.