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What is 'Modern Portfolio Theory  MPT'
Modern portfolio theory (MPT) is a theory on how riskaverse investors can construct portfolios to optimize or maximize expected return based on a given level of market risk, emphasizing that risk is an inherent part of higher reward.
Also called "portfolio theory" or "portfolio management theory."
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BREAKING DOWN 'Modern Portfolio Theory  MPT'
According to the theory, it's possible to construct an "efficient frontier" of optimal portfolios offering the maximum possible expected return for a given level of risk. This theory was pioneered by Harry Markowitz in his paper "Portfolio Selection," published in 1952 by the Journal of Finance.
There are four basic steps involved in portfolio construction:
Security valuation
Asset allocation
Portfolio optimization
Performance measurement
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RELATED FAQS

Where did Modern Portfolio Theory (MPT) come from?
Learn about modern portfolio theory, or MPT, and its origins. MPT has become a standard paradigm through which investors ... Read Answer >> 
How is portfolio variance reduced in Modern Portfolio Theory?
Learn about modern portfolio theory, specifically what it asserts about asset allocation and managing portfolio risk through ... Read Answer >> 
Why is risk return tradeoff important in designing a portfolio?
Learn how the risk return tradeoff is used in the construction of portfolios, and how modern portfolio theory seeks to diversify ... Read Answer >> 
What are the advantages of portfolio planning with the efficient frontier?
Learn about modern portfolio theory and the efficient frontier. Understand the advantages of portfolio planning with the ... Read Answer >> 
How is correlation used in modern portfolio theory?
Discover how modern portfolio theory and the efficient frontier use correlation between investment assets to predict an optimal ... Read Answer >> 
How do investment advisors calculate how much diversification their portfolios need?
Learn how modern portfolio theory (MPT) can help determine a diversified mix of assets for inclusion in a portfolio that ... Read Answer >>