Aroon
The Aroon Indicator, often referred to as Aroon Up Down, measures how many periods have passed since the price recorded an n-period high or low, with "n" being a trader-defined number of periods. For example, a 14-day Aroon-Up calculates the number of days since the last 14-day high, while a 14-day Aroon-Down does the same for the 14-day low. The values range from 0 to 100, indicating the strength of a trend: the closer the value is to 100, the stronger the trend. The Aroon indicator is useful for identifying trends and periods of consolidation.