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NT 8

Indicator Description:
The mean absolute deviation is a measure of dispersion of a set of data points. It can be used in place of the standard deviation when the weight of outliers shall be reduced.

The indicator displays the mean absolute deviation around the mean, which is often referred to as the “mean absolute deviation”.

The mean absolute deviation is looking at the absolute differences where the standard deviation is calculating the squares of the differences. Hence large outliers will create a higher dispersion, when using the standard deviation instead of the mean absolute deviation.

The mean absolute deviation around the mean is always smaller than the standard deviation. When the data is normally distributed the standard deviation is about 1.2533 times the mean absolute deviation. The exact factor is obtained as the square root of π/2.

Futures and forex trading contains substantial risk and is not for every investor. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing one's financial security or life style. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past performance is not necessarily indicative of future results.

Hypothetical performance results have many inherent limitations, some of which are described below. No representation is being made that any account will or is likely to achieve profits or losses similar to those shown; in fact, there are frequently sharp differences between hypothetical performance results and the actual results subsequently achieved by any particular trading program. One of the limitations of hypothetical performance results is that they are generally prepared with the benefit of hindsight. In addition, hypothetical trading does not involve financial risk, and no hypothetical trading record can completely account for the impact of financial risk of actual trading. For example, the ability to withstand losses or to adhere to a particular trading program in spite of trading losses are material points which can also adversely affect actual trading results. There are numerous other factors related to the markets in general or to the implementation of any specific trading program which cannot be fully accounted for in the preparation of hypothetical performance results and all which can adversely affect trading results.


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Mean Absolute Deviation (Around the Mean)