Decomposing the price-earnings ratio

Keith Anderson and Chris Brooks

Journal of Asset Management, 2006, vol. 6, issue 6, No 7, 456-469

Abstract: Abstract The price-earnings (P/E) ratio is a widely used measure of the expected performance of companies, and it has almost invariably been calculated as the ratio of the current share price to the previous year's earnings. The P/E of a particular stock, however, is partly determined by outside influences such as the year in which it is measured, the size of the company, and the sector in which the company operates. Examining all UK companies since 1975, the authors propose a modified P/E ratio that decomposes these influences. A regression is then used to weight the factors according to their power in predicting returns. The decomposed P/E ratio is able to double the gap in annual returns between the value and glamour deciles, and thus constitutes a useful tool for value fund managers and hedge funds.

Keywords: value premium; price-earnings ratio; trading strategy; sector P/E ratio (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1057/palgrave.jam.2240195

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