Building a Composite Earnings Quality Equity Factor

Summary

This document describes a long-short equity factor that ranks nonfinancial U.S. stocks by a composite measure of earnings quality. It combines cash flow relative to reported earnings, return on equity, cash flow relative to assets, and debt relative to assets. Stocks receive percentile scores on each measure; the strategy buys the highest-ranked stocks and shorts the lowest-ranked stocks among both large and small capitalization groups, with annual rebalancing at June-end.

The cited research reports that high-quality stocks outperformed low-quality stocks across developed markets from July 1988 to June 2012, with a stronger Sharpe ratio than the broad market or comparable value and small-stock strategies. The page also presents earnings quality as a potential diversifier, noting a negative relationship with value and positive returns in recession months in related analysis. These are summaries of cited studies, not guarantees; the document does not provide full implementation details on costs, trading constraints, or robustness across definitions of quality.

Key ideas

• Earnings quality is represented by cash flow, profitability, accrual-related, and leverage measures.
• A composite percentile score ranks stocks, with long positions in the strongest group and shorts in the weakest group.
• The described universe includes nonfinancial NYSE, Amex, and Nasdaq stocks, split into large and small capitalization groups.
• The portfolio is formed annually at the end of June.
• The cited research reports diversification potential against value and favorable historical risk-adjusted returns.

Tags

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