December 2009

Diversification Across Characteristics

Erik Hjalmarsson

Abstract:

I study long-short portfolio strategies formed on seven different stock characteristics representing various measures of past returns, value, and size. Each individual characteristic results in a profitable portfolio strategy, but these single-characteristic strategies are all dominated by a diversified strategy that places equal weight on each of the single-characteristic strategies. The benefits of diversifying across characteristic-based long-short strategies are substantial and can be attributed to the mostly low, and sometimes substantially negative, correlation between the returns on the single-characteristic strategies.

Full paper (screen reader version)

Keywords: Diversification, portfolio choice, stock characteristics

PDF: Full Paper

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