Acta Univ. Agric. Silvic. Mendelianae Brun. 2015, 63, 1375-1386

https://doi.org/10.11118/actaun201563041375
Published online 2015-09-02

Application of Markowitz Portfolio Theory by Building Optimal Portfolio on the US Stock Market

Martin Širůček, Lukáš Křen

Department of Finance, Faculty for Business and Economics, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

This paper is focused on building investment portfolios by using the Markowitz Portfolio Theory (MPT). Derivation based on the Capital Asset Pricing Model (CAPM) is used to calculate the weights of individual securities in portfolios. The calculated portfolios include a portfolio copying the benchmark made using the CAPM model, portfolio with low and high beta coefficients, and a random portfolio. Only stocks were selected for the examined sample from all the asset classes. Stocks in each portfolio are put together according to predefined criteria. All stocks were selected from Dow Jones Industrial Average (DJIA) index which serves as a benchmark, too. Portfolios were compared based on their risk and return profiles. The results of this work will provide general recommendations on the optimal approach to choose securities for an investor’s portfolio.

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