Adaptive RSI

The Adaptive RSI indicator is a trend-following tool that applies a dynamic smoothing technique to price action based on Relative Strength Index (RSI) calculations. By adjusting its alpha coefficient according to momentum intensity, it aims to track prices closely during strong trends while filtering out noise during ranging markets.

Usage

The indicator is plotted directly on the price chart as a smoothed line. Traders can use it to identify the prevailing market direction and potential trend reversals.

When the Highlight Movements setting is enabled, the line changes color based on its slope:

• A green line indicates the Adaptive RSI is rising, suggesting bullish momentum.
• A red line indicates the Adaptive RSI is falling, suggesting bearish momentum.

Because the indicator adapts its smoothing factor based on RSI values, it reacts more quickly when price movements are extreme (overbought or oversold) and slows down when the RSI is near its midpoint (50), providing a balanced perspective on trend strength.

Details

The Adaptive RSI (ARSI) functions by calculating a standard RSI and then deriving an "alpha" or smoothing factor from it. The formula for alpha is determined by the distance of the RSI from its midpoint: 2 * abs(RSI / 100 - 0.5).

This calculation ensures that:

• When RSI is 0 or 100 (extreme momentum), alpha becomes 1, and the ARSI follows the source price exactly.
• When RSI is 50 (neutral momentum), alpha becomes 0, and the ARSI remains flat.

The final output is an Exponential Moving Average (EMA) where the smoothing factor changes dynamically bar-by-bar, allowing the indicator to be "adaptive" to current market volatility and strength.

Settings

• Length: The lookback period used for the internal RSI calculation. Higher values result in a smoother, slower-reacting line.
• Highlight Movements?: Toggles the color-coding of the plot based on whether the indicator value is increasing or decreasing.
• Source: The price data used for the calculation (e.g., Close, Open, High, Low).

FAQ

How do I use the Adaptive RSI for signals?

Traders often look for color changes or slope reversals as signals of shifting momentum. A change from red to green may indicate a bullish entry point, while green to red suggests a bearish exit or entry.

How does this differ from a standard RSI?

Unlike a standard RSI which is an oscillator bound between 0 and 100, the Adaptive RSI is an overlay indicator that follows price action. It uses RSI logic solely to determine how much smoothing to apply to the price.

How can I access the Adaptive RSI?

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