Parabolic SAR Trend Signals Filtered by Rolling Price Extremes
Summary
The document explains Parabolic SAR as a trend-following indicator whose stop level advances toward an extreme price using an acceleration factor. It outlines rising and falling calculations, including the initial factor, its increments when new extremes occur, and a stated maximum. Because SAR switches sides when price crosses its level, it can signal long or short positioning and provide a trailing stop reference. The article notes that SAR calculation details vary across implementations.
The proposed strategy combines SAR direction with rolling high and low comparisons to filter entries, then specifies profit-taking and loss exits. It gives example indicator settings and implementation logic, and reports a backtest setup using hourly futures data from 2015 to 2019, but the numerical performance evidence is contained in unavailable chart images. The author argues that filtering may reduce trades during choppy periods, while warning that SAR alone can generate repeated false reversals in ranges. The method therefore remains dependent on market regime, parameter choices, and backtest validation.
Key ideas
- Parabolic SAR moves its stop level toward the trend's extreme price using an acceleration factor.
- A price crossing the SAR level switches the indicated trend direction and places the stop on the other side of price.
- The strategy combines SAR direction with rolling price high or low conditions to filter entries.
- Profit-taking and stop-loss rules are specified alongside the entry conditions.
- SAR can perform poorly in sideways markets, where reversals may generate ineffective signals.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.