DISPERSION OF INVESTMENT RETURNS
Back to GlossaryDefinition
A range of possible returns on an investment, also used to measure the risk inherent in a particular security or investment portfolio.
Summary
Dispersion of investment returns refers to how spread out or variable the actual returns of an investment are compared to the average or expected return. It measures the degree to which individual returns deviate from the mean return over time. High dispersion indicates greater volatility and risk, while low dispersion suggests more consistent, predictable returns. This concept is fundamental to understanding investment risk and is typically measured using statistical tools like standard deviation or variance.
Usage Context
Understanding dispersion is crucial when studying portfolio theory, risk management, asset allocation decisions, and comparing investment alternatives with similar expected returns but different risk profiles.
Common Confusions
- Confusing dispersion with average returns - dispersion measures spread, not central tendency
- Thinking high dispersion is always negative - it can indicate higher potential upside
- Not understanding that dispersion measures historical variability, not future certainty
- Assuming all investments with the same average return have the same risk profile
