Diversification means spreading money across different investments so one failure does not do all the damage.
What it means
Owning many names is not enough if they all act alike. Fifty technology stocks can still be one large bet on technology.
A more useful mix may spread money across companies, industries, countries, and types of assets. Diversification lowers some risks, but it cannot stop every loss.
A simple example
An employee earns a paycheck from one company, holds $300,000 of that company's stock, and expects a pension from the same employer. Those may look like three different parts of the financial plan, but all three depend heavily on one company.
If the company struggles, the employee could lose a job while the stock falls and the pension feels less secure. Moving some investments into other companies, industries, and types of assets cannot remove every risk. It can keep one employer's trouble from hitting as many parts of the plan at once.
What people often miss
Funds can overlap. Two funds with different names may own many of the same companies.
Spreading money too widely can also make the plan hard to understand without adding much real variety.
Three questions worth asking
- What are my five largest bets?
- Do several funds own the same things?
- What event could hurt many parts of the plan at once?
Checked against primary sources
This explanation was checked against the sources below. Rules and limits can change, so check the source before making a decision.
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