Forex Pair Trading with Seasonal Spread Signals and Position Weighting
Summary
The article describes a market-neutral forex pair-trading approach that buys one instrument and sells another when their spread moves unusually far from its typical level, then exits as the spread contracts. It discusses using correlation to select related symbols, representing their spread as a difference or ratio, and using a moving average or Bollinger Bands to identify deviations. Because the instruments can have different point values, it also explains adjusting position sizes using their tick values and tick sizes.
Seasonal analysis is presented as a way to identify recurring spread behavior across years and plan entries in advance. The document illustrates the ideas with currency pairs and mentions metals, but provides no systematic performance study. Correlations can weaken, spreads can trend or remain wide, and unusual events can disrupt seasonal patterns. The article cautions that pair trading is not risk-free and that symbol selection and position sizing are central to the method.
Key ideas
- Pair trading seeks to profit from spread convergence while reducing exposure to the direction of either instrument alone.
- Correlation can help identify candidate pairs, but the relationship between instruments may change over time.
- A spread can be calculated as a difference or ratio, and the chosen calculation affects signal values.
- Moving averages and Bollinger Bands can help flag unusually wide deviations from a spread’s usual level.
- Position sizes should account for each instrument’s point value rather than assuming equal lots are balanced.
- Seasonal patterns can guide timing, but events and changing market relationships can invalidate them.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.