Jurik RSX: A Smoothed Momentum Oscillator Built from Price Changes

Summary

This document presents a simplified implementation of the Jurik RSX indicator and states that it is equivalent to the original. The calculation applies repeated exponential smoothing stages to close-to-close price changes and to their absolute values, then uses the smoothed directional change relative to smoothed absolute movement to produce an oscillator. The output is bounded above at 100, with a fallback midpoint when the denominator is not positive. A default length of 14 is specified, and the example plots reference levels around the center and upper and lower zones.

The material is an indicator calculation, not a complete trading system: it gives no entry or exit rules, tested markets, timeframes, or performance evidence. Its claim of strict equivalence is not independently demonstrated, and the code depends on recursive state and initialization behavior that may vary across platforms. The document also includes unrelated privacy-policy text. Traders adapting the oscillator should verify the implementation and test any signal interpretation in their own data and execution setting.

Key ideas

• RSX smooths both directional price changes and absolute changes through multiple exponential stages.
• The oscillator compares smoothed directional movement with smoothed total movement.
• The example uses a default length of 14 and displays several reference levels.
• The document supplies indicator code but no trading rules or backtest evidence.
• Recursive initialization and platform behavior should be checked when implementing the calculation.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.