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Combining the 123 Reversal Pattern with a Dynamic Momentum Index

Article Strategy library · Author: ChaoZhang

Summary

This strategy combines a short-term reversal signal with a volatility-adjusted momentum filter. The 123 component uses recent close movements and stochastic conditions to generate long or short signals. The Dynamic Momentum Index adapts the RSI lookback to recent price variability, with a shorter period in more volatile conditions and a longer period in quieter markets. Positions are opened only when the two components agree; otherwise, the source closes existing positions.

The document describes potential benefits from combining pattern and indicator signals, while warning about whipsaws, excessive turnover, missed longer trends, and transaction costs. It recommends parameter tuning, stop-loss rules, and position sizing, but supplies no measured performance results. The published settings specify a short BTC-USDT futures backtest, which is not enough to establish robustness. There are also discrepancies between the written formula and the source’s calculation of the adaptive period, and the prose’s threshold descriptions are difficult to reconcile with the code’s conditions. These details should be checked before attempting to reproduce the strategy.

Key ideas

  • The strategy requires agreement between a 123-style reversal signal and a dynamic momentum filter.
  • The dynamic index varies its RSI period according to recent price variability.
  • The source closes positions when the two components do not agree on direction.
  • Whipsaws, high turnover, missed longer trends, and trading costs are identified risks.
  • The formula description and code differ in ways that affect reproducibility, and no performance evidence is provided.

Tags

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