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A New Look at Minimum Variance Investing

Bernd Scherer

EDHEC Business School - Department of Economics & Finance

July 1, 2010

Disappointed with the performance of market weighted benchmark portfolios yet skeptical about the merits of active portfolio management, investors in recent years turned to alternative index definitions. Minimum variance investing is one of these popular rule driven, i.e. new passive concepts. I show in this paper theoretically and empirically that the portfolio construction process behind minimum variance investing implicitly picks up risk-based pricing anomalies. In other words the minimum variance tends to hold low beta and low residual risk stocks. Long/short portfolios based on these characteristics have been associated in the empirical literature with risk-adjusted outperformance (alpha). This paper shows that 83% of the variation of the minimum variance portfolio excess returns (relative to a capitalization weighted alternative) can be attributed to the FAMA/FRENCH factors as well as to the returns on two characteristic anomaly portfolios. All regression coefficients (factor exposures) are highly significant, stable over the estimation period and correspond remarkably well with our economic intuition.

Number of Pages in PDF File: 23

Keywords: Minimum variance portfolio, SHARPE-ratio, Risk based

JEL Classification: G11, C14

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Date posted: September 24, 2010  

Suggested Citation

Scherer, Bernd, A New Look at Minimum Variance Investing (July 1, 2010). Available at SSRN: http://ssrn.com/abstract=1681306 or http://dx.doi.org/10.2139/ssrn.1681306

Contact Information

Bernd Scherer (Contact Author)
EDHEC Business School - Department of Economics & Finance ( email )
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