An application of Markowitz theorem on Tehran Stock Exchange

During the past 65 years, there have been tremendous efforts on portfolio selection problem. The standard Markowitz mean–variance model to portfolio selection includes tracing out an efficient frontier, a continuous curve demonstrating the tradeoff between return and risk. This frontier can be often...

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Main Authors: Hassan Ghodrati, Mohammad Abbasi
Format: Article
Language:English
Published: Growing Science 2014-05-01
Series:Management Science Letters
Subjects:
Online Access:http://www.growingscience.com/msl/Vol4/msl_2014_102.pdf
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author Hassan Ghodrati
Mohammad Abbasi
author_facet Hassan Ghodrati
Mohammad Abbasi
author_sort Hassan Ghodrati
collection DOAJ
description During the past 65 years, there have been tremendous efforts on portfolio selection problem. The standard Markowitz mean–variance model to portfolio selection includes tracing out an efficient frontier, a continuous curve demonstrating the tradeoff between return and risk. This frontier can be often detected via standard quadratic programming, categorized in convex optimization. Traditional Markowitz problem has been recently extended into a new form of mixed integer nonlinear problems by considering various constraints such as cardinality constraints, industry limitation, etc. This paper proposes a mixed integer nonlinear programming to determine optimal asset allocation on Tehran Stock Exchange. The results have indicated that a petrochemical firm named Farabi has gained 44% of the portfolio followed by a drug firm named Kosar Pharmacy gaining 28%. In addition, banking sector was the third winning firm where Eghtesad Novin bank gained nearly 10% of the portfolio. Minerals and mining firms were the next sector in our portfolio where Gol Gohar Iron Ore and Tehran Cement collected 0.73% and 0.57% of the portfolio, respectively. In our survey, auto industry gained only 0.26% of the portfolio, which belonged to Saipa group.
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spelling doaj-art-3acd8f71866b4abd8a291a486e2c76342025-08-20T02:07:48ZengGrowing ScienceManagement Science Letters1923-29341923-93432014-05-014589990410.5267/j.msl.2014.3.027An application of Markowitz theorem on Tehran Stock ExchangeHassan GhodratiMohammad AbbasiDuring the past 65 years, there have been tremendous efforts on portfolio selection problem. The standard Markowitz mean–variance model to portfolio selection includes tracing out an efficient frontier, a continuous curve demonstrating the tradeoff between return and risk. This frontier can be often detected via standard quadratic programming, categorized in convex optimization. Traditional Markowitz problem has been recently extended into a new form of mixed integer nonlinear problems by considering various constraints such as cardinality constraints, industry limitation, etc. This paper proposes a mixed integer nonlinear programming to determine optimal asset allocation on Tehran Stock Exchange. The results have indicated that a petrochemical firm named Farabi has gained 44% of the portfolio followed by a drug firm named Kosar Pharmacy gaining 28%. In addition, banking sector was the third winning firm where Eghtesad Novin bank gained nearly 10% of the portfolio. Minerals and mining firms were the next sector in our portfolio where Gol Gohar Iron Ore and Tehran Cement collected 0.73% and 0.57% of the portfolio, respectively. In our survey, auto industry gained only 0.26% of the portfolio, which belonged to Saipa group.http://www.growingscience.com/msl/Vol4/msl_2014_102.pdfTehran Stock ExchangeInvestmentMarkowitz TheoremCardinality constraint
spellingShingle Hassan Ghodrati
Mohammad Abbasi
An application of Markowitz theorem on Tehran Stock Exchange
Management Science Letters
Tehran Stock Exchange
Investment
Markowitz Theorem
Cardinality constraint
title An application of Markowitz theorem on Tehran Stock Exchange
title_full An application of Markowitz theorem on Tehran Stock Exchange
title_fullStr An application of Markowitz theorem on Tehran Stock Exchange
title_full_unstemmed An application of Markowitz theorem on Tehran Stock Exchange
title_short An application of Markowitz theorem on Tehran Stock Exchange
title_sort application of markowitz theorem on tehran stock exchange
topic Tehran Stock Exchange
Investment
Markowitz Theorem
Cardinality constraint
url http://www.growingscience.com/msl/Vol4/msl_2014_102.pdf
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