Zhengzhou Coal Mean Deviation vs. Downside Deviation

601717 Stock   12.64  0.14  1.12%   
Zhengzhou Coal technical analysis lookup allows you to check this and other technical indicators for Zhengzhou Coal Mining or any other equities. You can select from a set of available technical indicators by clicking on the link to the right. Please note, not all equities are covered by this module due to inconsistencies in global equity categorizations and data normalization technicques. Please check also Equity Screeners to view more equity screening tools
Zhengzhou Coal Mining has current Mean Deviation of 1.75. The mean deviation of the equity instrument is the first measure of the distances between each value of security historical prices and the mean. It gives us an idea of how spread out from the center the distribution of returns.

Mean Deviation

 = 

SUM(RET DEV)

N

 = 
1.75
SUM = Summation notation
RET DEV = Sum of return deviations of Zhengzhou Coal
N = Number of calculation points for selected time horizon

Zhengzhou Coal Mean Deviation Peers Comparison

Zhengzhou Mean Deviation Relative To Other Indicators

Zhengzhou Coal Mining is rated third in mean deviation category among its peers. It is currently under evaluation in downside deviation category among its peers creating about  1.34  of Downside Deviation per Mean Deviation. The ratio of Downside Deviation to Mean Deviation for Zhengzhou Coal Mining is roughly  1.34 
Mean Deviation is the average of the absolute values of the differences between price distribution numbers and their mean. Mean deviation of equity instrument with a lot of historical data is a biased estimator because the time horizon used in calculation will always be much smaller than the entire price history of the equity. The mean deviation is typically used as a measure of dispersion for small investment horizon, otherwise standard deviation is a better measure of dispersion.
Compare Zhengzhou Coal to Peers

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