The DeMark's DeMarker is a technical indicator that attempts to measure the demand of an asset by comparing the high and low prices with the previous high/low prices.
It is composed of two others indicators which are DeMax and DeMin. The first compares the current bar high with the previous bar high while the second compares the current bar low with the previous bar low.
These two indicators moving average are then assembled to create the DeMarker indicator.
The period using to calculate the moving averages discussed previously is the DeMarker indicator input, and this is the only one this function accepts.
The indicator is bounded between -100 and +100, and is subject to different interpretation.
I suggest, like always, to backtest and analyze the indicator to draw your own conclusions.
But generally, it is considered as an overbought/oversold indicator, so when the DeMarker value rises above a certain level (70 for example, but it depend on the period you set), it is considered as bearish signal, while a fall below a certain level (30, also depends on the period), it is considered as bullish signal.
Some other interpretations include the divergence between the DeMarker and the security price, or the indicator Support /Resistance breakouts.
A different moving average, like the exponential or weighted moving average, could also be used to construct the DeMark's DeMarker indicator.
