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Alcoa Inc has current Standard Deviation of 3.31. The Standard Deviation is a measure of how spread out the prices or returns of asset are on average. It is the most widly used risk indicator in the field of investing and finance. Standard Deviation is commonly used to measure confidence in statistical conclusions regarding certain equity instrument or portfolio of equities.

Alcoa | Standard Deviation | = | SQRT(V) |
| = | 3.31 | |

## Standard Deviation Comparison

Alcoa Inc is rated

**third** in standard deviation category among related companies. It is rated

**second** in maximum drawdown category among related companies reporting about

2.92 of Maximum Drawdown per Standard Deviation. The ratio of Maximum Drawdown to Standard Deviation for Alcoa Inc is roughly

2.92 Standard deviation is applied to the annual rate of return of an investment to measure the investment's volatility. Standard deviation is also known as historical volatility and is used by investors as a gauge for the amount of expected market volatility. A large standard deviation usually indicates that the data points are far from the mean and a small standard deviation indicates that they are clustered closely around the mean.