Naive Diversification: Risk vs Number of Holdings |…

What Naive Diversification Is

Naive diversification refers to the practice of adding multiple securities to an investment portfolio with the hope that their returns will not move in tandem, thereby reducing overall risk. This concept is based on the idea that by spreading investments across various assets, the impact of any single asset's poor performance can be mitigated.

The 2D wheel diagram simulates this process, allowing you to visualize how increasing the number of holdings affects total portfolio risk.

Why It Matters

Understanding naive diversification is crucial for investors as it helps in managing risk without necessarily sacrificing potential returns. By adding more securities, particularly those with low or negative correlations, the overall volatility of the portfolio can be significantly reduced.

This concept underpins modern portfolio theory and is widely used by financial advisors to construct diversified investment portfolios.

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How It Works

In the 2D wheel diagram, each holding represents a security with its own volatility. By adding more holdings, the total risk of the portfolio decreases as long as there is some degree of diversification (i.e., not all securities move in the same direction). The live correlation web and pannable/zoomable risk-reduction curve provide real-time insights into how different factors affect overall portfolio risk.

The Animate button traces the path of risk reduction as more holdings are added, demonstrating the diminishing returns of diversification as the number of securities increases.

Real-World Examples

In practice, naive diversification is often used by mutual funds and ETFs to manage their portfolios. For example, a fund might include a mix of stocks from different sectors or countries to reduce sector-specific risks.

Individual investors can also apply this concept by investing in a variety of asset classes such as stocks, bonds, real estate, and commodities.

Frequently asked questions

Does adding more holdings always reduce risk?

No, the reduction in risk is not linear. Adding more holdings can reduce risk up to a point but beyond that, the benefits diminish as correlations between securities become less diverse.

What does 'systematic-risk floor' mean in this context?

The systematic-risk floor refers to the minimum level of risk that cannot be diversified away. It is determined by factors such as market-wide economic conditions and is represented in the 2D wheel diagram by the lowest possible total portfolio risk.

How does correlation between securities affect diversification?

Correlation measures how closely the returns of two securities move together. Lower correlations mean that adding one security to a portfolio can reduce overall volatility, while higher correlations result in little or no reduction in risk.

Can naive diversification completely eliminate risk?

No, naive diversification cannot eliminate all risk. There will always be some level of unsystematic risk that is specific to individual securities and systematic risk that affects the entire market.

Try it live

Everything above runs in your browser — open Naive Diversification: Risk vs Number of Holdings (2D) and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

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