A portfolio that provides the best expected returns for a given level of risk, or, equivalently, the lowest risk possible for a given level of expected returns.... more on: Efficient portfolio

The portfolio providing the highest return for a given level of risk.

A portfolio whose risk return characteristics fall on the efficient frontier, i.e.: at a given level of risk there is no portfolio with a higher expected return and for a given expected return there is no portfolio with a lower level of risk.

A portfolio which ensures maximum return for a given level of risk or a minimum level of risk for an expected return.

Portfolio with a maximum expected return for any specific risk level, or a minimum risk level for any specific expected return. See: Required Rate Of Return; Return

A portfolio that provides the greatest expected return for a given level of risk (i.e. standard deviation), or equivalently, the lowest risk for a given expected return.

A portfolio that minimizes historical portfolio risk for a given potential return, or maximizes portfolio potential return for a given level of historical risk.

A portfolio which provides the best possible return for a given level of risk, or which offers the least risk for a given return.

A fully diversified portfolio that lies on the efficient frontier.

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