EquitySABRVol





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Returns the volatility given an equity/FX/Commodity SABR volatility VOL Key.

This function requires the input of a EquitySABRVolCurve object key, which must have been produced via a call to the EquitySABRVolCurve() function.

This function would have returned a string 'KEY' which is to be passed to the 'VCKey' parameter of this function.



Note: Within Excel, the function is named - CT.MKT.EquitySABRVol




High level graphic of EquitySABRVol() function with parameters. Blue square node is the actual function with the parameters ordered.



Parameter Description


  1. OptionMat parameter

    Option maturity date..
  2. Strike parameter

    The strike value.
  3. VCKey parameter

    Key to an already constructed equity/FX/Commodity SABR VolCurve object.


Extended information

Function Syntax

VB Syntax


Double CTQryCurves.EquitySABRVol( _
Long OptionMat, _
Double Strike, _
String VCKey)


Excel Spreadsheet Syntax


=CT.MKT.EquitySABRVol(
Excel Numeric Cell OptionMat,
Excel Numeric Cell Strike,
Excel String Cell VCKey)


C++ Syntax


static double EquitySABRVol(
long OptionMat,
double Strike,
std::string VCKey);


DotNET Syntax


System.Double CTQryCurvesSA.EquitySABRVol(
System.Int32 OptionMat,
System.Double Strike,
System.String VCKey);

Parameter data types

ArgNameArgTypeIsKey
OptionMatLongFALSE
StrikeDoubleFALSE
VCKeyStringTRUE


Example Inputs

The first column represents the name of the parameters. The second column specifies whether the parameters are optional or not. Finally the last column provides some sample input data.
Function call input string-keys are always in the format : "NAME.EXTTAG.TICKER" The "EXTTAG.TICKER" part is determined from the output of other, capetools, object creation functions.


ArgNameIsOptional (Excel only)Example
OptionMatFALSE21/Jan/2006 (serial date type)
StrikeFALSE210
VCKeyFALSEVCKeyNAME.EXTTAG.TICKER (from a function call)


Example function usage


The C# example below contains all the sub-function calls leading up to this function call. As a result, the example can contain a lot of code.

The VB.NET, J#, C++.NET, Java, Excel VBA, Visual Basic 6 (via COM) and C++ examples below contain function code stubs for the calls leading up to this function call. However, the function call for this function is displayed.
You can easily reproduce the stub functions code from the C# example.


If you are accessing this functrion via the MiniXL libraries, this function is present within the CT.QL.Curves20 MiniXL Excel Addin.

Within our Excel Example Addin Generator, we have used the following QuantTools sub-functions in order to prepare the arguments needed to call the EquitySABRVol() function. If you are executing this function via the MiniXL libraries, the module addin name, (in brackets, to the right of the sub-functions listed below), indicates the MiniXL library in which the sub-function is held. You will need to load this library into your Excel session (along with any other libraries that the sub-function call within the addin requires (ie - CT.QT.Utils20 addin in almost all cases) in order for the example to compute successfully.

These are the financial QuantTools sub-function calls that are used within the examples :





The objects generated by these sub-functions are inter-connected in the following way :




The following four examples demostrate calling this function within a Microsoft .NET environment

The following four examples demostrate calling this function within a non .NET environment

The following is a sample output from executing the EquitySABRVol() function call


0.082408892557891

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