CAPM Beta, Size, Book-to-Market, and Momentum in Realized Stock Returns

Jiri Novak and Dalibor Petr ()
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Dalibor Petr: PETR’S Olomouc, Czech Republic, http://www.petrs.com/

Czech Journal of Economics and Finance (Finance a uver), 2010, vol. 60, issue 5, 447-460

Abstract: Measuring risk in the stock market context is one of the key challenges of modern finance. Despite the substantial significance of the topic to investors and market regulators, there is a controversy over what risk factors should be used to price assets or to determine the cost of capital. We empirically investigate the ability of several commonly proposed risk factors to predict Swedish stock returns. We consider the sensitivity of asset returns to the variation in market returns (beta), the market value of equity (size), the ratio of the market value of equity to the book value of equity, and short-term historical stock returns (momentum). We conclude that none of these factors is clearly significant for explaining stock returns on the Stockholm Stock Exchange, which casts doubt on their use as universal risk factors in various corporate governance contexts. It seems that the previously documented relationship is contingent on the data sample used and on the time period.

Keywords: stock returns; asset pricing; risk; multifactor models; CAPM; size; book-to-market; momentum; Sweden (search for similar items in EconPapers)
JEL-codes: C21 G12 (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:fau:fauart:v:60:y:2010:i:5:p:447-460

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