Turtle-Style Reversal Signals with Trend and Bollinger Filters

Summary

This strategy pairs seven-period price extremes with a Trendflex measure and Bollinger-style bands. Its description says to go long on a break below a recent low and short on a break above a recent high, then filter those signals using trend strength and volatility conditions. It also describes moving stop and target management, with example stop and target percentages provided in the inputs.

The code and prose are not fully consistent: the code's Trendflex filters permit longs below 1 and shorts above -1, rather than requiring values beyond the stated positive or negative thresholds. The code also applies band-edge tests, not simply a rule to avoid trades whenever price is inside the bands. Though a BTC/USDT futures backtest setup is provided for a short period, no results are presented. The document identifies false breakouts, fixed parameters, and inadequate protection from extreme losses as concerns, and suggests volatility-aware exits and further filtering.

Key ideas

• The described entry signals reverse the usual breakout direction by buying below a recent low and selling above a recent high.
• Trendflex and Bollinger-style conditions are intended to filter direction and volatility.
• The source code's filter inequalities differ from the threshold rules in the written explanation.
• Stop and target levels are specified as percentages, but no backtest performance is reported.
• The document notes false breaks, fixed settings, and extreme-loss exposure as limitations.

Tags

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