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估计收益率的均值和协方差

评估投资组合资产收益率的均值和协方差,包括含缺失数据和金融时间序列数据的资产

对象

Portfolio创建 Portfolio 对象以进行均值-方差投资组合优化和分析

函数

getAssetMomentsObtain mean and covariance of asset returns from Portfolio object
setAssetMoments Set moments (mean and covariance) of asset returns for Portfolio object
estimateAssetMomentsEstimate mean and covariance of asset returns from data
setCostsSet up proportional transaction costs

示例和操作指南

Asset Returns and Moments of Asset Returns Using Portfolio Object

Mean-variance portfolio optimization problems require estimates for the mean and covariance of asset returns.

Working with a Riskless Asset

The Portfolio object uses a separate RiskFreeRate property that stores the rate of return of a riskless asset.

Working with Transaction Costs

The difference between net and gross portfolio returns is transaction costs.

Asset Allocation Case Study

This example shows how to set up a basic asset allocation problem that uses mean-variance portfolio optimization with a Portfolio object to estimate efficient portfolios.

Portfolio Optimization Examples

The following sequence of examples highlights features of the Portfolio object in the Financial Toolbox™.

Leverage in Portfolio Optimization with a Risk-Free Asset

This example shows how to use the setBudget function for the Portfolio class to define the limits on the sum(AssetWeight_i) in risky assets.

Portfolio Optimization with Semicontinuous and Cardinality Constraints

This example shows how to use a Portfolio object to directly handle semicontinuous and cardinality constraints.

Black-Litterman Portfolio Optimization

This example shows the workflow to implement the Black-Litterman model with the Portfolio class.

Portfolio Optimization Using Factor Models

This example shows two approaches for using a factor model to optimize asset allocation under a mean-variance framework.

概念

Portfolio Object Workflow

Portfolio object workflow for creating and modeling a mean-variance portfolio.