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Developed by J. Wells Wilder, the parabolic SAR indicator is used by traders to comprehend trend direction as well as possible reversals in price. This indicator makes use of a trailing stop along with a reverse method, known as SAR, or stop and reverse, to recognize adequate entry and exit points.
Traders also consider this indicator as the parabolic stop and reverse, parabolic SAR – or PSAR. On a chart, this indicator appears as a series of dots, either below the price of an asset or above, based on the direction whereat the price is moving. Generally, a dot is placed below the price when it is going upward and vice versa.
In comparison to a falling PSAR, the rising one has a slightly varying formula.
Rising PSAR = Prior PSAR + [Prior AF (Prior EP – Prior PSAR)] Falling PSAR = Prior PSAR – [Prior AF (Prior PSAR – Prior EP)] Here; AF = Acceleration Factor EP = Extreme Point
While using the parabolic stop and reverse indicator, there is a variety of things that should be tracked. One of the things to be constantly kept in mind is that if the SAR is rising initially and that the price is closing little near the rising SAR value, the trend is down and the falling SAR formula will be applied.
And, if the price is going above the falling SAR value, on the contrary, rising SAR formula will be used. Some of the other factors to be kept in mind include:
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There is a variety of charting software available out there that can help with calculating the PSAR. This means that traders will only have to know how the signals of the indicators can easily be interpreted.