what is the best period for the aroon indicator 
the aroon indicator is typically applied to 25 periods of data this means that the indicator shows how many periods it has been since a 25 period high or low or a period during which the high and low can be tracked the indicator ranges between 0 and 100 when the indicator trends above 50 it means that the last 12 periods showed a high or low point a reading below 50 highlights a high low trend within 13 periods 