The Aroon Oscillator: Unlocking the Secrets of Market Trends

The Aroon Oscillator

A Comprehensive Guide to Trading with Aroon Oscillator

May 11, 2023

Are you looking for a powerful technical indicator that can help you identify trend changes in the market? Look no further than the Aroon oscillator. Everything you need to know about the Aroon oscillator, from its definition and computation to its applications in trading, will be covered in this article. Let’s get going!



The Aroon oscillator is an analytical indicator used to determine the direction and strength of a trend in the stock market. It was developed by Tushar Chande in 1995 and is based on the Aroon indicator. The Aroon oscillator is calculated by subtracting the Aroon down from the Aroon up. The resulting oscillator oscillates between -100 and +100, with readings above zero indicating an uptrend and below zero indicating a downtrend.


What is the Aroon Oscillator?

 This oscillator is a momentum indicator that helps traders identify trend changes in the market. It is a technical analysis tool that uses the Aroon indicator, which measures the time elapsed between the lowest low and highest high over a specific period. The Aroon oscillator is calculated by subtracting the Aroon down from the Aroon up. 


How is the Aroon Oscillator Calculated?

To calculate the Aroon oscillator, you first need to calculate the Aroon up and down. You calculate the up by determining how many times have passed since the highest high in a specific period. The down is calculated by determining the number of periods since the lowest low over a specific period.  Finally, The Aroon oscillator is then calculated by subtracting the Aroon down from the Aroon up.


How to Use the Aroon Oscillator?

 This oscillator is used to identify trend changes in the market. When the oscillator is above zero, it indicates an uptrend, while readings below zero indicate a downtrend. Traders can utilize the oscillator to determine when to initiate or conclude trades and establish stop-loss orders.

Traders can also use the Aroon oscillator with other technical indicators to confirm or filter signals. For example, if the oscillator shows an uptrend, but the relative strength index (RSI) is overbought, traders may wait for the RSI to come down before entering a long position.


Aroon Oscillator Trading Strategies

 Trend Following Strategy:

Traders can employ the Aroon oscillator to identify trends and initiate trades in the direction of the prevailing trend. When the oscillator indicates an uptrend, with the Aroon Up line above the Aroon Down line, it suggests a bullish bias in the market. In this case, traders may consider entering long positions, expecting the upward trend to continue. Conversely, when the oscillator signals a downtrend, the Aroon Down line above the Aroon Up line indicates a bearish bias. Traders may then consider entering short positions, anticipating further downward movement. By following the trend indicated by the Aroon oscillator, traders align their trades with the underlying market momentum.

Reversal Strategy:

The Aroon oscillator can also be utilized to identify potential trend reversals. Traders can monitor changes in the oscillator’s direction to anticipate shifts in market sentiment. For instance, if the oscillator has been in an uptrend but starts to decline, it may indicate a bearish reversal, suggesting a potential shift from bullish to bearish market conditions. Conversely, if the oscillator has been in a downtrend but starts to rise, it may indicate a bullish reversal, signalling a potential shift from bearish to bullish market conditions. Traders can use these reversal signals to enter trades opposite to the prevailing trend, aiming to capture early trend reversals and benefit from subsequent price movements.

Overbought/Oversold Strategy:

The Aroon oscillator can also assist traders in identifying overbought and oversold market conditions. When the oscillator crosses above 50, it suggests that the trend is gaining strength and potentially becoming overbought. On the other hand, when the oscillator crosses below 50, it indicates that the trend is weakening and the market may be oversold. Traders can utilize these overbought and oversold signals to make trading decisions. For instance, when the oscillator is below 50 (oversold condition), traders may consider entering long positions, expecting a potential bounce or reversal in price. Conversely, when the oscillator is above 50 (overbought condition), traders may consider entering short positions, anticipating a potential pullback or reversal. This strategy can be complemented by incorporating other technical indicators, such as the Relative Strength Index (RSI) to validate signals and increase the probability of successful trades.

It is important to note that while these trading strategies can be effective in certain market conditions, they are not foolproof and should be used in conjunction with comprehensive market analysis, risk management techniques, and consideration of other relevant factors. Traders should also practice and backtest these strategies to evaluate their effectiveness and suitability for their specific trading style and objectives.


Divergence Strategy

The divergence strategy is a technique traders can employ using the Aroon oscillator to identify divergences between the oscillator and price movements. By observing these divergences, traders can potentially gain insights into upcoming shifts in the market.

In the context of the Aroon oscillator, a divergence occurs when there is a disparity between the price action and the oscillator’s readings. Specifically, if the price is reaching new highs, but the oscillator fails to follow suit by not reaching new highs, it could indicate a bearish divergence. This discrepancy suggests that the upward momentum may weaken, potentially signalling a bearish trend reversal or a corrective pullback.

Conversely, a bullish divergence occurs when the price creates new lows, but the oscillator does not confirm these lows by failing to reach new lows. This bullish divergence implies that despite the downward movement in price, the underlying bullish momentum might be building up. Traders could interpret this as a potential signal for a bullish trend reversal or an upcoming upward move.

By utilizing the divergence strategy with the Aroon oscillator, traders aim to identify these divergences as early as possible to make informed trading decisions. However, it’s important to note that divergences alone may not guarantee accurate predictions, and additional analysis and confirmation from other indicators or tools are often recommended to validate potential trading opportunities.


Advantages and Disadvantages of Using the Aroon Oscillator


1. Ease of Calculation and Interpretation: One of the primary advantages of the Aroon oscillator is its simplicity. It is relatively easy to calculate and interpret, making it accessible to traders of different experience levels. The oscillator is derived from the Aroon Up and Aroon Down indicators, which measure the time it takes for prices to reach new highs and lows within a given period.

2. Identifying Trend Changes: The Aroon oscillator is particularly useful for identifying potential market trends. It can provide signals when a trend is losing momentum or when a new trend is emerging. Traders can use these signals to anticipate trend reversals, adjust their strategies, or consider potential entry or exit points.

3. Complementary to Other Indicators: The Aroon oscillator can be effectively used alongside other technical indicators. By combining it with additional tools, such as moving averages or volume analysis, traders can enhance their analysis and gain more confidence in their trading decisions. This integration can help confirm or refine signals generated by the Aroon oscillator, improving the overall accuracy of trading strategies.


1. False Signals in Choppy Markets: One limitation of the Aroon oscillator is its tendency to produce false signals in choppy or range-bound markets. In such market conditions, where price moves within a confined range without establishing a clear trend, the oscillator may generate conflicting signals or fail to provide reliable indications of trend changes. Traders should exercise caution when relying solely on the Aroon oscillator in such market environments.

2. Ineffectiveness in Low Volatility Markets: The Aroon oscillator’s effectiveness can be diminished in markets with low volatility. When price movements are limited and lack significant momentum, the oscillator may produce weak or ambiguous signals, making it challenging to accurately interpret the market’s directional bias. Traders should consider complementing the Aroon oscillator with other volatility indicators or employ alternative strategies during periods of low volatility.

3. Lagging Indicator: The Aroon oscillator is considered a lagging indicator, providing signals after a trend has begun. As a result, traders may experience delayed entry or exit points compared to leading indicators. It is essential to understand that the oscillator may not identify trend changes immediately, potentially causing traders to miss out on some early opportunities within a new trend.



The Aroon oscillator offers traders a valuable tool for identifying trend changes in the market. Its ease of calculation and interpretation makes it accessible to traders of varying skill levels. By using the Aroon oscillator, traders can enhance their decision-making process and potentially improve their trading outcomes.

The advantages of the Aroon oscillator lie in its simplicity and ability to identify trend changes. Traders can easily calculate and interpret the oscillator, allowing quick analysis and decision-making. Moreover, the Aroon oscillator can serve as a reliable indicator of potential trend shifts, enabling traders to adjust their strategies accordingly and capitalize on emerging market opportunities.

However, it is essential to acknowledge the limitations of the Aroon oscillator. False signals may occur in choppy or range-bound markets, potentially leading to incorrect trading decisions. Additionally, the oscillator may be less effective in low-volatility environments, as price movements may be limited and fail to provide significant signals. Traders should be mindful of these drawbacks and consider utilizing other technical indicators or complementary tools to strengthen their analysis.

Incorporating the Aroon oscillator into a trading strategy can be a beneficial approach, mainly when used in conjunction with other technical indicators and comprehensive market analysis. By combining multiple tools and techniques, traders can increase their confidence in trading decisions and improve their overall trading performance.

To maximize the effectiveness of the Aroon oscillator, traders should practice proper risk management techniques and thoroughly backtest their strategies. This will enable them to assess the suitability and reliability of the oscillator within their specific trading style and objectives.


FAQs About the Aroon Oscillator

1. What is the difference between the Aroon indicator and the Aroon oscillator?

The Aroon indicator measures the time elapsed since the highest high and lowest low over a specific period of time, while the Aroon oscillator is calculated by subtracting the Aroon down from the Aroon up.

2. Can the Aroon oscillator be used in any time frame?

 Yes, the Aroon oscillator can be used anytime, from intraday to monthly charts.

3. How does the Aroon oscillator differ from other momentum indicators?

The Aroon oscillator is unique in that it measures both the strength and direction of a trend, while other momentum indicators typically only measure one or the other.

4. What is the best way to use the Aroon oscillator in trading?

The best way to use the oscillator in trading is to use it with other technical indicators and confirm or filter signals.

5. What are the limitations of the Aroon oscillator?

 The Aroon oscillator may give false signals in choppy or range-bound markets and may be ineffective in low-volatility markets.

6. Can the Aroon oscillator be used for long-term investing?

The Aroon oscillator can be used for long-term investing, but it is best used with other fundamental and technical analysis tools.

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