The Single Line Aroon Indicator is a simplified version of the traditional Aroon indicator, designed to identify trends and the strength of those trends in the market. Developed by Tushar Chande in 1995, the traditional Aroon indicator consists of two lines: Aroon Up and Aroon Down. The Single Line Aroon, however, combines these two into one line, which provides a clearer and more straightforward representation of trend direction and strength.

The Single Line Aroon indicator is calculated by subtracting the Aroon Down value from the Aroon Up value. The Aroon Up measures the number of periods since the highest high within a specified time frame, while the Aroon Down measures the number of periods since the lowest low within the same period. The resulting value ranges from -100 to +100.

When the Single Line Aroon is above zero, it indicates a bullish trend, with higher values suggesting stronger upward momentum. Conversely, a value below zero signifies a bearish trend, with lower values indicating stronger downward momentum. The closer the indicator is to the extremes (+100 or -100), the stronger the trend. This single-line approach simplifies the interpretation, making it easier for traders to quickly assess market conditions and make informed trading decisions.