This scalping system uses two types of Bollinger Bands and an Exponential Moving Average. It can be used on any currency pair and the time frame could be set from 1 minute to 15 minutes, but it seems to be working best on the 5 minutes chart.
Bollinger Bands is a technical indicator discovered by John Bollinger., its default settings are a moving average of 20 periods and a standard deviation of 2. This system uses one Bollinger Bands with a moving average of 21 and a standard deviation of 2 and one Bollinger Bands with the same moving average but with a standard deviation of 3.
The idea of the system is to look for the moments when the price touches the upper or the lower layer between the standard deviation of 2 and standard deviation of 3. Using 200 EMA will help the trader follow the important trend. If the price it is above the EMA the trader will look only for long entries. If the price is under the EMA then the trader will look for short positions.
The signal would be a candle which touches (or better closes) inside the layer between the two deviations and the confirmation would be a candle of the opposite color signaling the reversal.
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