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DEFINITION of 'Portfolio'. A grouping of financial assets such as stocks, bonds and cash equivalents, as well as their mutual, exchange-traded and closed-fund counterparts.Portfolios are held directly by investors and/or managed by financial professionals.Next Up.hink of an investment portfolio as a pie that is divided into pieces of varying sizes representing a variety of asset classes and/or types of investments to accomplish an appropriate risk-return portfolio allocation.
Portfolio expected return = 0.4R 1 + 0.5R 2 + 0.1R 3 = 0.4[R f +1.2(R m-R f)]+ 0.5[R f +0.8(R m-R f)]+ 0.1[R f +1.8(R m-R f)] = R f +1.06(R m-R f)] DIF: H REF: 7.2 Risk and Return for Portfolios 22. A portfolio consists 20% of a risk-free asset and 80% of a stock. The risk-free return is 4%. The stock has an expected return of 15% and a standard deviation of 30%.