Minimum-variance portfolio

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Minimum-variance portfolio

The portfolio of risky assets with lowest variance.

Minimum-Variance Portfolio

A portfolio of individually risky assets that, when taken together, result in the lowest possible risk level for the rate of expected return. Such a portfolio hedges each investment with an offsetting investment; the individual investor's choice on how much to offset investments depends on the level of risk and expected return he/she is willing to accept. The investments in a minimum variance portfolio are individually riskier than the portfolio as a whole. The name of the term comes from how it is mathematically expressed in Markowitz Portfolio Theory, in which volatility is used as a replacement for risk, and in which less variance in volatility correlates to less risk in an investment.
References in periodicals archive ?
Minimum variance portfolios tend to deliver corner solutions (Black and Litterman [1992]; Litterman and Quantitative Resources Group [2003]; and Meucci [2009]) while maximum diversification is not as robust as risk parity to changes in correlation estimates.
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