Commodity Futures Return Asymmetry: A Monthly Long-Short Strategy

Summary

The document describes a cross-sectional commodity futures strategy based on return asymmetry. It defines an IE measure as the difference between the counts of unusually large positive and negative daily returns, using a rolling 260-day window. At each month start, commodities are ranked by the measure; the strategy equally weights a long position in the seven lowest-IE contracts and a short position in the seven highest-IE contracts, then rebalances monthly.

The proposed explanation is that investors may overpay for commodities with greater upside asymmetry, depressing their later returns, while lower-IE contracts may be undervalued. The cited study reports an annual return of 4.36% and a Sharpe ratio of 0.58 for this portfolio, and describes a negative relationship with stock returns. Its relationship with a skewness-based portfolio is positive but limited, suggesting the effects may differ. These are reported research results, not a guarantee of future performance; the page does not provide full implementation details on costs or robustness beyond the described analysis.

Key ideas

• The IE measure compares counts of unusually high and low daily returns over a rolling window.
• The strategy buys the seven lowest-IE commodity futures and shorts the seven highest-IE futures.
• The portfolio is equally weighted and rebalanced monthly.
• The study attributes the return pattern to investor demand for upside asymmetry.
• Reported results suggest a possible stock-hedging role and a distinct relationship to skewness.

Tags

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