portstats (Financial Toolbox)

portstats
Portfolio expected return and risk

Syntax

[PortRisk, PortReturn] = portstats(ExpReturn, ExpCovariance, 
PortWts)

Arguments

ExpReturn
1 by number of assets (NASSETS) vector specifying the expected (mean) return of each asset.

ExpCovariance
NASSETS-by-NASSETS matrix specifying the covariance of the asset returns.

PortWts
(Optional) Number of portfolios (NPORTS) by NASSETS matrix of weights allocated to each asset. Each row represents a different weighting combination. Default = 1/NASSETS (equally weighted).

`ExpReturn`	1 by number of assets (`NASSETS`) vector specifying the expected (mean) return of each asset.
`ExpCovariance`	`NASSETS`-by-`NASSETS` matrix specifying the covariance of the asset returns.
`PortWts`	(Optional) Number of portfolios (`NPORTS`) by `NASSETS` matrix of weights allocated to each asset. Each row represents a different weighting combination. Default = `1/NASSETS` (equally weighted).

Description
[PortRisk, PortReturn] = portstats(ExpReturn, ExpCovariance, PortWts) computes the expected rate of return and risk for a portfolio of assets.

PortRisk is an NPORTS-by-1 vector of the standard deviation of each portfolio.

PortReturn is an NPORTS-by-1 vector of the expected return of each portfolio.

Examples

ExpReturn = [0.1 0.2 0.15]; 

ExpCovariance = [0.0100   -0.0061    0.0042 
                -0.0061    0.0400   -0.0252 
                 0.0042   -0.0252    0.0225 ];
 
PortWts=[0.4 0.2 0.4; 0.2 0.4 0.2];

[PortRisk, PortReturn] = portstats(ExpReturn, ExpCovariance,... 
PortWts)

PortRisk =

    0.0560
    0.0550

PortReturn =

    0.1400
    0.1300

See Also
frontcon

portsim portvrisk