Directional Movement Index Trading with a DI Spread Threshold

Summary

This strategy uses positive and negative directional indicators to select long or short exposure. The indicators are calculated from smoothed directional movement divided by smoothed true range. A configurable spread threshold filters small differences: the example rule enters long when DI+ exceeds DI− by more than three points and short when DI− exceeds DI+ by more than three. The strategy can be configured for either direction alone, uses a 14-period length by default, and supports a date window followed by closing positions.

The document presents the approach as a way to follow directional strength and reduce trades on minor fluctuations, but it provides no backtest performance results. It warns that sharp price moves can produce false signals, the threshold may lead to too many or too few trades, and DI does not identify trend endings. It suggests using other indicators for confirmation, adjusting parameters by instrument, and adding explicit profit and loss controls. The proposed machine-learning optimization is an idea rather than evaluated evidence.

Key ideas

• DI+ and DI− are compared, with a threshold spread used to trigger directional positions.
• The example uses a 14-period smoothing length and a threshold of three indicator points.
• The strategy supports long-only or short-only operation and can close positions after a configured date range.
• No performance results are supplied, and false signals, parameter sensitivity, and trend reversals remain risks.

Tags

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