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# tbillyield

Yield on Treasury bill

## Syntax

``[MMYield,BEYield,Discount] = tbillyield(Price,Settle,Maturity)``

## Description

example

````[MMYield,BEYield,Discount] = tbillyield(Price,Settle,Maturity)` computes the yield of US Treasury bills given `Price`, `Settle`, and `Maturity`.```

## Examples

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This example shows how to compute the yield of U.S. Treasury bills, given a Treasury bill with the following characteristics.

```Price = 98.75; Settle = '01-Oct-02'; Maturity = '31-Mar-03'; [MMYield, BEYield, Discount] = tbillyield(Price, Settle,... Maturity)```
```MMYield = 0.0252 ```
```BEYield = 0.0255 ```
```Discount = 0.0249 ```

This example shows how to use `datetime` inputs to compute the yield of U.S. Treasury bills, given a Treasury bill with the following characteristics.

```Price = 98.75; Settle = datetime('01-Oct-2002','Locale','en_US'); Maturity = datetime('31-Mar-2003','Locale','en_US'); [MMYield, BEYield, Discount] = tbillyield(Price, Settle,Maturity)```
```MMYield = 0.0252 ```
```BEYield = 0.0255 ```
```Discount = 0.0249 ```

## Input Arguments

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Price of Treasury bills for every \$100 face value, specified as a scalar of a `NTBILLS`-by-`1` vector of decimal values.

Data Types: `double`

Settlement date of the Treasury bill, specified as a scalar or a `NTBILLS`-by-`1` vector of serial date numbers, date character vectors, or datetime arrays. `Settle` must be earlier than `Maturity`.

Data Types: `double` | `char` | `datetime`

Maturity date of the Treasury bill, specified as a scalar or a `NTBILLS`-by-`1` vector of serial date numbers, date character vectors, or datetime arrays.

Data Types: `double` | `char` | `datetime`

## Output Arguments

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Money-market yields of the Treasury bills, returned as a `NTBILLS`-by-`1` vector.

Bond equivalent yields of the Treasury bills, returned as a `NTBILLS`-by-`1` vector.

Discount rates of the Treasury bills, returned as a `NTBILLS`-by-`1` vector.

 SIA Fixed Income Securities Formulas for Price, Yield, and Accrued Interest. Volume 1, 3rd edition, pp. 44–45.

 Krgin, D. Handbook of Global Fixed Income Calculations. Wiley, 2002.

 Stigum, M., Robinson, F. Money Market and Bond Calculation. McGraw-Hill, 1996.