SMART RSI

The SMART RSI indicator provides an enhanced version of the Relative Strength Index by incorporating adaptive boundaries, linear regression smoothing, and automated signal highlighting to improve momentum analysis.

Usage

The SMART RSI can be used to identify overextended market conditions with greater precision than a standard RSI. Instead of static 70/30 levels, this tool uses adaptive percentile-based bands that adjust to the historical volatility and distribution of the RSI values.

A primary use case is identifying potential reversals or trend exhaustion when the smoothed RSI line crosses outside the dynamic reference bands. The indicator highlights these areas automatically:

• Red Background: Occurs when the smoothed RSI crosses above the upper reference line, suggesting a potential overbought condition.
• Blue Background: Occurs when the smoothed RSI crosses below the lower reference line, suggesting a potential oversold condition.

Because the RSI is smoothed via linear regression, users can expect fewer "fake-out" crosses compared to a traditional raw RSI.

Details

This tool improves upon traditional momentum oscillators through three main mechanisms:

1. Adaptive Decision Boundaries: The indicator calculates upper and lower bounds based on a user-specified percentile (defaulting to 90%). This ensures that the boundaries reflect where the RSI actually spends the majority of its time over a specific lookback window, making it relevant across different timeframes and assets.
2. Linear Regression Smoothing: To filter out high-frequency noise, a short linear regression is applied to the RSI line. This helps create a cleaner visual representation of price momentum without introducing significant lag.
3. Dynamic Reference Smoothing: The percentile-based boundaries are also smoothed to ensure the visual output remains consistent and readable.

Settings

• Price Source: Determines the price data used for the RSI calculation (default is HL2).
• Length: The lookback period for the core RSI calculation.
• Smoothing factor for RSI line: The length of the linear regression applied to the RSI to reduce noise.
• Reference line lookback: The historical window used to calculate the percentile-based boundaries.
• % of data points in reference lines: Determines the width of the channel; for example, at 90%, the RSI is expected to stay within the bands 90% of the time.
• Reference lines smoothing factor: The amount of smoothing applied to the dynamic upper and lower boundaries.

FAQ

How do I access SMART RSI?

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

Why are the overbought/oversold levels moving?

Unlike a standard RSI with fixed lines at 70 and 30, the SMART RSI uses adaptive boundaries based on historical distribution. This allows the indicator to stay relevant even if an asset stays in a high-momentum state for an extended period.

Can I use this for intraday trading?

Yes, the adaptive nature of the percentile bands makes it suitable for various timeframes, as the boundaries will automatically adjust to the volatility characteristics of the chosen chart.