Expected return and standard deviation can help you analyze investment portfolios. Learn their differences, uses, and ...

Standard deviation is a measurement of market volatility. Learn how investors use standard deviation in the MoneySense Glossary. Standard deviation (σ) is an investing metric used to measure the ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Andy Smith is a Certified Financial Planner ...

Standard deviation helps in understanding historical volatility of investment and is used to measure relative risk of investments. Volatile stocks have higher standard deviation whereas stable ...