# Documentation

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# portror

Portfolio expected rate of return

## Syntax

```R = portror(Return, Weight)
```

## Arguments

 `Return` `1`-by-`N` matrix of rates of return. Each column of `Return` represents the rate of return for a single security `Weight` `M`-by-`N` matrix of weights. Each row of `Weight` represents a different weighting combination of the assets in the portfolio.

## Description

`R = portror(Return, Weight)` returns a `1`-by-`M` vector for the expected rate of return.

## Examples

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This example shows a portfolio that is made up of two assets ABC and XYZ having expected rates of return of 10% and 14%, respectively. If 40% percent of the portfolio's funds are allocated to asset ABC and the remaining funds are allocated to asset XYZ, the portfolio's expected rate of return is:

```r = portror([.1 .14],[.4 .6]) ```
```r = 0.1240 ```

## References

Bodie, Kane, and Marcus. Investments. Chapter 7.