Standard deviation and variance are two key measures commonly used in the financial sector. Standard deviation is the spread of a group of numbers from the mean.

Continue reading ->The post How Mean-Variance Optimization Works in Investing appeared first on SmartAsset Blog. There’s a reason Wall Street firms recruit from MIT.

Find out what portfolio variance is, the formula to calculate portfolio variance, and how to calculate the variance of a portfolio containing two assets. Skip to content News ...

The formula we use for the variance is displayed immediately to the right and shows that we divide the sum of squared differences (Cell C66) by the number of months (Cell C67) less 1. The variance ...