Evaluating the Grover Llorens Activator Across Three Markets

Summary

The article evaluates a trailing, converging trend indicator inspired by parabolic SAR. Its strategy goes long when price crosses above the activator and short when price crosses below it, reversing on opposite signals. The indicator’s line adjusts using average true range, a multiplier, and elapsed bars since the latest crossing. The author examines hourly charts for EUR/USD, Bitcoin/USD, and AMD using fixed position sizes, and explains profitability rate, maximum drawdown, and profit factor as the main reported measures.

The results vary by market: the article reports modestly positive profit factors for all three examples, while noting that EUR/USD results would turn negative after applying spread and that Bitcoin/USD drawdown was large relative to profit. AMD performed better in a trending market, but a price gap caused a notable drawdown. These are historical examples, not evidence of durable returns: money management and trading costs are omitted from the stated analysis, the settings are not shown to be optimal, and the author warns that noise, reversals, and convergence toward price can generate false signals. The proposed possibility of adapting the indicator is speculative.

Key ideas

• The strategy reverses direction when price crosses the activator line.
• The activator uses ATR, a multiplier, and time since the most recent signal to update its trailing level.
• The article compares historical results on EUR/USD, Bitcoin/USD, and AMD using profit rate, drawdown, and profit factor.
• Reported outcomes differ by market, and transaction costs and money management are not fully represented.
• The author cautions that noisy or uneven price action can produce false signals and that the settings are not established as optimal.

Tags

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