CAPE Ratios and Long-Term Returns
A new study finds that long-term stock market returns are far more predictable using the Component CAPE ratio, which matches current prices and earnings for the same companies and weights them by market value. This method sharply improves 10-year return forecasts, with out-of-sample R-squared values above 50 percent. While the approach outperforms the traditional CAPE, the boost in actual investment returns is modest. The research focuses on U.S. data, leaving global relevance uncertain.
What it examines
This paper improves long-term stock return forecasts by refining the CAPE ratio. The authors align current S&P 500 components with their historical earnings and use advanced regression methods. Their approach aims to provide more accurate predictions for 10-year equity market returns, addressing limitations in traditional CAPE calculations.
What it concludes
The study finds that the new Component CAPE ratio predicts long-term returns much better than traditional methods. This can help investors make smarter asset allocation decisions. The approach is robust, but future research could explore its use in other markets or with different financial ratios.
Evidence objects
A new method, the Component CAPE ratio, dramatically improves long-term stock market return predictions, with out-of-sample $R^2$ values exceeding 50%, far surpassing traditional price-earnings approaches.
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Unlike the standard CAPE, which mismatches current prices with past earnings, the Component CAPE tracks and weights the same stocks by market value, offering a more accurate and intuitive forecasting tool.
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Despite its predictive power, the Component CAPE yields only modest gains in actual investment returns and is tested mainly on U.S. data, leaving its global applicability an open question for future research.
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This paper introduces the 'Component CAPE ratio,' a novel modification aligning index prices and earnings, resolving a key mismatch in traditional CAPE calculations. Demonstrating robust, out-of-sample predictability ($OOS\ R^2 > 50%$), it offers significant empirical validation. Its originality and relevance make it compelling for finance practitioners and researchers.
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Raw abstract and provenance
- … We demonstrate that 10-year equity market returns are considerably more predictable … Asset Allocation In this section, we examine the asset allocation value of the CAPE …
Source row: 365 · abstract type: snippet