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Risk

Investment risk is the possibility that actual outcomes differ from what an investor expects, including the possibility of losing some or all invested capital.

By Betta Signals Research Desk · Reviewed October 24, 2026

Plain-English definition: Investment risk is the possibility that actual outcomes differ from what an investor expects, including the possibility of losing some or all invested capital.[1]

How the term is used

Risk has more than one dimension: market movement, credit, liquidity, concentration, inflation, currency, leverage, operational failure, and legal structure can matter. No single statistic captures all of them.[1]

What to check before relying on it

A historical volatility or beta figure is evidence about one past pattern, not a complete risk score. Time horizon and the investor's need to sell can change the practical impact of the same loss.

Example

A short-term Treasury security and a small-company stock can both decline in some circumstances, but the sources, likely size, and timing of those risks differ.

VolatilityDrawdownLiquidity

Research last reviewed: October 24, 2026. This definition is educational and does not evaluate a particular security.

Sources

  1. Investor.gov: What is Risk? — investment uncertainty, possible loss, and major categories of risk. Accessed October 24, 2026.