Trend Reversal Probability

The Trend Reversal Probability indicator provides a statistical approach to estimating the likelihood of trend exhaustion and potential market shifts using duration-based analysis and a custom oscillator. It helps traders identify overextended trends by calculating the probability of a reversal based on historical trend longevity.

Usage

The tool serves as a probabilistic guide to determine if a current trend is reaching its typical conclusion. Traders can use the visual cues on the chart to gauge market sentiment:

• Trend Identification: The color of the duration counter (columns) indicates the current trend direction (Bullish or Bearish).
• Statistical Overextension: When the duration columns reach the higher probability levels (e.g., 84%, 98%, or 99%), it suggests the current trend is statistically overextended compared to its historical average.
• Reversal Probability Table: A real-time data table displays the exact percentage likelihood of a reversal based on the current trend's age.
• Alerts: Users can set alerts for specific probability thresholds to catch high-probability turning points without needing to monitor the chart constantly.

Details

The indicator functions through a multi-step calculation process:

1. Custom Oscillator: It first calculates a derivative of the "Awesome Oscillator" by taking the difference between a 5-period and 34-period SMA of the midpoint price.
2. Momentum Transformation: An RSI-like formula is applied to this oscillator to smooth the values and define trend boundaries.
3. Duration Tracking: The script tracks the number of bars (duration) between every zero-cross of the custom RSI.
4. Statistical Modeling: It calculates the average duration and the standard deviation of these cycles. Using a cumulative distribution function (CDF), the script maps the current trend duration against the historical distribution to produce a percentage-based reversal probability.

Settings

Settings

• Oscillator Length: Determines the lookback period for the RSI-like transformation of the momentum oscillator.
• Enable Probability Levels: Toggles the visibility of the statistical horizontal lines (Average and Standard Deviations) on the chart.

Colors

• Up Color: Sets the color for bullish trends and duration columns.
• Down Color: Sets the color for bearish trends and duration columns.

FAQ

How do I access Trend Reversal Probability?

You can get access on the LuxAlgo Library for charting platforms like TradingView, MetaTrader (MT4/MT5), and NinjaTrader for free.

What do the percentage levels (84%, 98%, etc.) mean?

These represent standard deviation milestones. For example, the 84% level corresponds to +1 Standard Deviation, meaning only 16% of historical trends have lasted longer than that point.

Can this indicator be used on any timeframe?

Yes, the statistical calculations adjust automatically to the timeframe you are viewing, as it measures duration in bars rather than absolute time.