mean-variance optimization
[/miːn ˈvɛəriəns ˌɒptɪmaɪˈzeɪʃən/]
noun
otimização média-variância
1. A mathematical framework for selecting an optimal portfolio by balancing expected returns (mean) against investment risk (variance), maximizing returns for a given level of risk or minimizing risk for a given level of returns
Mean-variance optimization is the foundation of modern portfolio theory, helping investors make rational asset allocation decisions.
A otimização média-variância é a base da teoria moderna de portfólio, ajudando investidores a tomar decisões racionais de alocação de ativos.
2. A quantitative investment technique that uses statistical measures of expected return and volatility to construct efficient portfolios
The fund manager applied mean-variance optimization to reduce portfolio volatility while maintaining competitive returns.
O gestor de fundos aplicou otimização média-variância para reduzir a volatilidade da carteira mantendo retornos competitivos.
Mean-variance optimization is a cornerstone concept in global finance, originated by Harry Markowitz in 1952. It is taught in business schools and universities in both Brazil and the USA as a fundamental principle of investment management. In Brazilian financial markets, this methodology is applied by major institutional investors, pension funds, and asset managers, though behavioral finance perspectives are increasingly recognized as complementary approaches.
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