Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Portfolio variance is a measure of the dispersion of returns of a portfolio.

Theory and practice in money management have a rocky relationship. What looks good on paper often suffers a difficult and even a fatal transition to the real world for several reasons, including ...

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a ...

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 ...