Alcoa Inc has current Variance of 9.26. Variance is another measure of security risk that shows the amount of dispersion of equity returns around their mean value. Variance is calculated as the average squared deviations from the mean. Evaluating a set of investment alternatives one can use variance to help determine the volatility when purchasing a specific security. Similar to Standard Deviation, the variance is a measure of how far a set of numbers is spread out around its mean.
Alcoa | Variance | = | SUM(RET DEV)^{2} N |
| = | 9.26 | |
SUM | = | Summation notation | RET DEV | = | Actual returns deviation over selected period | N | = | Number of points for the period |
| |
Variance Comparison
Alcoa Inc is rated
third in variance category among related companies. It is rated
second in maximum drawdown category among related companies reporting about
1.67 of Maximum Drawdown per Variance. The ratio of Maximum Drawdown to Variance for Alcoa Inc is roughly
1.67 Variance is also a measure of stock volatility and can help determine the risk an investor might take on when purchasing a specific security. A relatively big variance indicates that the daily prices or returns are far from the mean and a small variance indicates that they are located around the mean.