Alpha Hedging: Isolating Stock Selection Returns with Index Futures

Summary

The document explains alpha and beta through the CAPM framework, then presents alpha hedging as a way to reduce market exposure while seeking returns from stock selection. Its example approach buys a basket of equities and shorts index futures in a corresponding amount, aiming to offset systematic risk. It suggests that stock selection can draw on event, factor, momentum, or behavioral models, alongside market, liquidity, volume, and technical information.

The discussion identifies key implementation considerations: the quality of the portfolio’s excess return, futures basis changes, contract choice, position mismatch, expiry rolls, and variation margin. It also says the strategy may be affected by market sentiment and changing conditions, and that hedging ratios may be adjusted. The document offers no supporting backtest or evidence for its performance claims, and its description of alpha as independent of the market is simplified. Actual results depend on costs, basis risk, hedge accuracy, and whether stock selection produces excess returns.

Key ideas

• Alpha hedging seeks to retain portfolio-specific returns while offsetting market exposure with index futures.
• The long equity basket must be selected using a separate process, such as factor, event, momentum, or behavioral analysis.
• Futures basis, contract selection, expiry rolls, margin needs, and differences between cash and futures exposure affect implementation.
• The strategy’s outcome depends on excess stock returns after trading costs and hedging frictions.
• Market conditions can change how much beta exposure an investor chooses to hedge.

Tags

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