The Low Beta Anomaly and Estimation Interval

Brandon Renfro

Abstract


The purpose of this study was to assess the nature of the relationship between equity beta, and post-estimation return. Specifically, this study sought to address the validity and persistence of the low-beta anomaly across multiple beta estimation intervals. Within the twenty-year sample period from January of 1994 to December of 2013 this research covered ten different beta estimation intervals to determine whether a statistically significant and theoretically consistent relationship existed between equity beta and post-estimation realized return. This research provided two basic conclusions: First, the low-beta anomaly is not robust across multiple beta estimation intervals. Second, with any test of the relationship between beta and return the choice of beta estimation interval matters. Different estimation intervals sometimes provide contradictory empirical results for the same period.


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DOI: https://doi.org/10.5430/afr.v8n1p203

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Accounting and Finance Research
ISSN 1927-5986 (Print)   ISSN 1927-5994 (Online)

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