Beta
What Is Beta?
Beta measures how sensitive an investment’s price is to movements in the overall market. It indicates the level of volatility or systematic risk compared to a market benchmark.
Beta is commonly used in portfolio analysis and risk management.
Why It Matters
Beta helps investors understand how much an investment’s price may fluctuate relative to the market. It can help investors build portfolios that align with their risk tolerance.
Investments with higher beta tend to experience larger price swings, while lower beta investments are generally more stable.
How Beta Works
Beta compares the price movements of a security to the movements of a benchmark index.
Typical beta values include:
- Beta = 1: moves in line with the market
- Beta > 1: more volatile than the market
- Beta < 1: less volatile than the market
Investors may combine investments with different beta levels to balance risk.
Example
A stock with a beta of 1.5 may rise about 15% if the market rises 10%, but it could also fall more sharply during market declines.
Beta vs Volatility
- Beta measures volatility relative to the market.
- Volatility measures overall price fluctuations regardless of market comparison.
FAQs About Beta
Is a high beta stock riskier?
Generally yes, because it tends to experience larger price swings.
Do defensive stocks have low beta?
Often yes. Utility and consumer staple companies often have lower beta values.
Can beta be negative?
Yes. Some investments move in the opposite direction of the market.
Related Terms
