DeMarker (DeM) is one of forex technical indicator often used in forex technical analysis. DeMarker (DeM) is an Indicator which demonstrates phases of price depletion which usually correspond to price highs and bottoms fluctuates from 0 up to 1. The turn of the prices downwards is expected if the parameter of the indicator moves above a mark 0.7. The turn of the prices upwards is expected if the indicator moves below a mark 0.3.

Demarker Technical Indicator is based on the comparison of the period maximum with the previous period maximum. If the current period (bar) maximum is higher, the respective difference between the two will be registered. If the current maximum is lower or equaling the maximum of the previous period, the naught value will be registered.

When the indicator falls below 30, the bullish price reversal should be expected. When the indicator rises above 70, the bearish price reversal should be expected.

Technical traders primarily use this indicator as a method of identifying the riskiness of the levels in which they wish to place a transaction. Generally, values above 60 are indicative of lower volatility and risk, while a reading below 40 is a sign that risk is increasing.