Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/55894
Title: The crash risks of style investing : can they be internationally diversified?
Authors: Chue, KHT 
Wang, Y
Xu, J
Keywords: Style investing
Crash risks
International diversification
Issue Date: 2015
Publisher: CFA Institute
Source: Financial analysts journal, 2015, v. 71, no. 3, p. 34-46 How to cite?
Journal: Financial analysts journal 
Abstract: Motivated by the growth in the popularity of style investing and the concern for extreme events among investors, we examine the tail risks of style investing in different countries. For the G7 countries over the 1981-2010 period, we evaluate whether portfolios with different size, value, or momentum tilts — the SMB (small minus big), HML (high minus low), and UMD (past winners minus past losers) portfolios — experience different crash risks, and whether these risks can be mitigated through international diversification. We find that the crash risks of momentum tend to be higher than those of size and value, where crash risks are measured by return skewness and expected shortfall. International diversification lowers the crash risks of size and value further, but has only limited effects on momentum. Specifically, a diversified, world UMD portfolio (equal-weighted portfolio of the G7 countries) tends to be more left-skewed and has a more negative expected shortfall than the momentum portfolios of individual countries. By contrast, the world SMB and HML portfolios tend to have less negative skewness and expected shortfall than their country-specific counterparts. By examining the conditional correlations and return coexceedances of style portfolios across countries, we find that the extreme negative returns on UMD in different markets tend to occur together, whereas those on SMB and HML tend to be country-specific. In fact, for SMB and HML, it is the right-tail events that tend to be more global in nature. These results suggest that the difference in the effect of international diversification is due to the left (right) tails of momentum (size and value) portfolios being more correlated than their right (left) tails across countries.
URI: http://hdl.handle.net/10397/55894
ISSN: 0015-198X
EISSN: 1938-3312
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