Discover the differences between standard deviation and variance, two essential metrics for investors to assess volatility and risk in financial data.

Mary Hall is a editor for Investopedia's Advisor Insights, in addition to being the editor of several books and doctoral papers. Mary received her bachelor's in English from Kent State University with ...

👉 Learn how to find the variance and standard deviation of a set of data. The variance of a set of data is a measure of ...

Financial variance is the difference between budgeted and actual spending. Positive variance means spending less, negative indicates overspending. Regular monitoring reduces surprises and improves ...

A stock's historical variance measures the difference between the stock's returns for different periods and its average return. A stock with a lower variance typically generates returns that are ...