Diversification: What It Is and Why It Matters in Investing
Diversification is an investment approach that involves spreading money across different investments rather than concentrating everything in a single asset, company, sector or market area.
What Is Diversification?
Diversification means reducing dependence on the performance of one investment by holding a variety of investments. These investments may differ by asset class, company, industry, geography or other characteristics.
Diversification means avoiding excessive dependence on a single investment or source of investment return.
Why Does Diversification Matter?
Every investment can be affected by specific risks. A company may face business problems, an industry may experience difficulties or a particular asset class may decline in value.
By spreading investments, the poor performance of one investment may have less impact on the overall portfolio. However, diversification does not guarantee profits or protect against every possible loss.
Different Ways Investors May Diversify
- Across companies: Holding investments in more than one company.
- Across sectors: Avoiding excessive exposure to only one industry.
- Across asset classes: Combining different types of investments where appropriate.
- Across geographic markets: Considering exposure to different countries or regions.
- Across time: Some investors may invest gradually rather than committing all available money at one time.
An investor who puts all available money into one company is highly dependent on that company's performance. Another investor holding a range of investments may be less affected if one individual company performs poorly.
Diversification and Concentration Risk
Concentration risk occurs when a large portion of a portfolio depends on a single investment, company, sector or type of asset. If that concentrated area performs poorly, the portfolio may experience a significant decline.
Diversification is one approach investors may use to reduce this type of risk, although it cannot remove all risks from investing.
Can Diversification Prevent Losses?
No. Diversification cannot guarantee that an investment portfolio will avoid losses. Broad market declines, economic shocks and other events can affect many investments at the same time.
The purpose of diversification is generally risk management rather than guaranteeing a positive return.
How Much Diversification Is Enough?
There is no single level of diversification that is suitable for every investor. The appropriate approach can depend on financial goals, investment horizon, risk tolerance, available capital and the types of investments being considered.
Adding more investments does not automatically create better diversification. If multiple investments are exposed to similar risks, they may still move in similar ways.
Diversification and Asset Allocation
Diversification and asset allocation are related but different concepts. Asset allocation refers to how investments may be distributed among broad asset categories, while diversification can involve spreading exposure within and across those categories.
Both concepts can be part of a broader approach to managing investment risk.
Key Takeaways
- Diversification means spreading investments rather than concentrating everything in one place.
- It may help reduce the impact of problems affecting a single investment or market area.
- Diversification cannot eliminate all investment risks or guarantee profits.
- Holding many investments does not automatically mean a portfolio is well diversified.
- The appropriate level of diversification can depend on individual goals, time horizon and risk tolerance.