| Alcoa Corporation -- USA Stock | | ## USD 45.38 0.090000 0.20% |

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Alcoa Corporation has current Semi Deviation of 1.65. Semi-deviation provides a good measure of downside risk for a equity or a portfolio. It is similar to standard deviation, but it only looks at periods where the returns are less than the target or average level.

Alcoa | Semi Deviation | = | SQRT(SV) |
| = | 1.65 | |

## Semi Deviation Comparison

Alcoa Corporation is rated

**second** in semi deviation category among related companies. It is rated

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

4.47 of Maximum Drawdown per Semi Deviation. The ratio of Maximum Drawdown to Semi Deviation for Alcoa Corporation is roughly

4.47 Semideviation is the square root of semi variance. Semi-variance is calculated by averaging the deviations of returns that have a result that is less than the mean.