Relative Momentum Index (RMI)

The Relative Momentum Index (RMI) indicator is a technical oscillator designed to identify overbought and oversold conditions by measuring price momentum relative to a specific historical reference point. By comparing current prices to prices from a set number of periods ago rather than just the previous close, it provides a smoother alternative to the traditional Relative Strength Index (RSI).

Usage

The Relative Momentum Index (RMI) is primarily used to identify trend reversals and exhaustion points within a market. Users can look for the following signals:

• Overbought/Oversold Levels: Values above 70 typically indicate overbought conditions, while values below 30 indicate oversold conditions.
• Signal Line Crossovers: When the RMI crosses above its signal line, it can suggest a bullish momentum shift. Conversely, a cross below the signal line suggests bearish momentum.
• Momentum Shifts: The indicator changes color based on its direction, providing a visual cue for immediate momentum changes.
• Histogram: An optional histogram represents the difference between the RMI and its signal line, helping traders visualize the expansion or contraction of momentum.

Details

Developed by Roger Altman in 1993, the RMI is a variation of the RSI. While the standard RSI calculates gains and losses based on close-to-close data (a momentum of 1), the RMI allows users to define the momentum lookback period. This "momentum" parameter changes the basis of the calculation to compare the current close with the close n periods ago. This adjustment can help filter out market noise and provide a more robust view of the prevailing trend.

Settings

Core Settings

• Length: The lookback period used for the EMA calculation within the RMI formula.
• Momentum: The number of bars back used to compare the current price against to determine up or down movements.
• Overbought: The threshold level used to define overbought market conditions (default is 70).
• Oversold: The threshold level used to define oversold market conditions (default is 30).

Visuals & Signal

• Change Color?: Toggles whether the RMI line changes color based on its slope (rising vs. falling).
• Show Signal Line?: Enables or disables the display of the smoothed moving average (Signal Line) of the RMI.
• Signal Length: The period used to calculate the Simple Moving Average (SMA) of the RMI for the signal line.
• Show Hist?: Enables the display of a histogram centered around the 50 level, representing the distance between the RMI and the signal line.

FAQ

How do I interpret the RMI compared to the RSI?

The RMI is very similar to the RSI but adds a "Momentum" component. If you set the Momentum to 1, the RMI will behave identically to a standard RSI. Higher momentum values result in a smoother indicator that focuses on longer-term price shifts.

What are the best levels for overbought and oversold?

While 70 and 30 are the traditional defaults, some traders prefer 80 and 20 in high-volatility markets to reduce false signals.

How can I access this indicator?

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