BatesDblExpDetJumpEng





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Creates an Analytic Double-Exponential Jump Diffusion with Deterministic Jump Intensity Engine for pricing vanilla structures.

This engine is an extension of the Heston model and thus utilises the five main heston parameters (v0, kappa, theta, sigma and rho contained within a HestonProcess() or HestonProcess2() object via the 'hestonProcess' parameter.

During a calibration of this model, CalibBatesDblExpDetJump() you can choose to freeze the five Heston parameters and just calibrate the parameters pertaining to this model) The Bates model engine is based on Fourier transform.

This is a Jump-Diffusion with Stochastic Volatility model that prices european options under the following processes [ dS(t,S)=(r-d-lambda*m)*S*dt+sqrt{v}*S*dW_1+(e^J - 1)*S*dN, dv(t,S)=kappa*(theta-v)*dt+sigma*sqrt{v}*dW_2, dlambda(t)=kappaL*(thetaL-lambda)*dt, dW_1*dW_2=rho*dt ]. The function N() is a Poisson process with the intensity lambda.

When a jump occurs the magnitude J has the probability distribution function omega(J).

The jump size has an asymmetric double exponential distribution and the omega(J) function is defined as [ omega(J)=p*(1/nu_d)*e^(-(1/nu_d)*J)*I(J GreaterThan 0)+q*(1/nu_d)*e^((1/nu_d)*J)*I(J lessThan 0), I() is the indicator function and p+q=1 ]. The string 'Key' resulting from a successful construction of this engine object can be passed to the VanillaOption() function in order to create an VanillaOption object that can be priced via the PrcObjVanillaOption() function.

Be advised that the corresponding stochastic process object that is to be passed to the VanillaOption() function ('stochProcess' parameter) to support this engine has to be a Heston process object ( HestonProcess() or HestonProcess2() ).

In fact the same heston process object passed to this function's 'hestonProcess' parameter should also be passed to the VanillaOption() function.



This function creates an object and returns a string-key value to represent this created object.
The TAG value of the string-key returned (second part of the key) is : "BATE2EXPJENG"



Note: Within Excel, the function is named - CT.ENG.BatesDblExpDetJumpEng




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



Parameter Description


  1. Key parameter

    Key value to use as a handle for the created object
  2. Reload parameter

    When creating this object for the first time, set this parameter to a positive value. Within Excel, when re-computing a worksheet where you do not wish to recreate the object, set this parameter to zero (0).
  3. hestonProcess parameter

    Key to an already constructed Stochastic HestonProcess() or HestonProcess2() object.
  4. integrationOrder parameter

    Integration order parameter.
  5. lambda parameter

    lambda parameter (jump intensity) to be used within the dS(t,S) function.
  6. nu_u parameter

    nu_u parameter to be used within the probability distribution function omega(J).
  7. nu_d parameter

    nu_d parameter to be used within the probability distribution function omega(J).
  8. prob parameter

    probability parameter (between 0 and 1.0) to be used within the probability distribution function omega(J).
  9. kappaL parameter

    kappaL parameter to be used within the dlambda(t) function.
  10. thetaL parameter

    thetaL parameter to be used within the dlambda(t) function.


Extended information

Function Syntax

VB Syntax


String CTEngine.BatesDblExpDetJumpEng( _
String Key, _
Long Reload, _
String hestonProcess, _
Long integrationOrder, _
Double lambda, _
Double nu_u, _
Double nu_d, _
Double prob, _
Double kappaL, _
Double thetaL)


Excel Spreadsheet Syntax


=CT.ENG.BatesDblExpDetJumpEng(
Excel String Cell Key,
Excel Numeric Cell Reload,
Excel String Cell hestonProcess,
Excel Numeric Cell integrationOrder,
Excel Numeric Cell lambda,
Excel Numeric Cell nu_u,
Excel Numeric Cell nu_d,
Excel Numeric Cell prob,
Excel Numeric Cell kappaL,
Excel Numeric Cell thetaL)


C++ Syntax


static std::string BatesDblExpDetJumpEng(
std::string Key,
long Reload,
std::string hestonProcess,
long integrationOrder,
double lambda,
double nu_u,
double nu_d,
double prob,
double kappaL,
double thetaL);


DotNET Syntax


System.String CTEngineSA.BatesDblExpDetJumpEng(
System.String Key,
System.Int32 Reload,
System.String hestonProcess,
System.Int32 integrationOrder,
System.Double lambda,
System.Double nu_u,
System.Double nu_d,
System.Double prob,
System.Double kappaL,
System.Double thetaL);

Parameter data types

ArgNameArgTypeIsKey
KeyStringFALSE
ReloadLongFALSE
hestonProcessStringTRUE
integrationOrderLongFALSE
lambdaDoubleFALSE
nu_uDoubleFALSE
nu_dDoubleFALSE
probDoubleFALSE
kappaLDoubleFALSE
thetaLDoubleFALSE


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
KeyFALSEMyBatesDblExpDetJumpEng
ReloadFALSE1
hestonProcessFALSEhestonProcessNAME.EXTTAG.TICKER (from a function call)
integrationOrderFALSE64
lambdaFALSE0.1
nu_uFALSE0.1
nu_dFALSE0.1
probFALSE0.5
kappaLFALSE1.0
thetaLFALSE0.1


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.EnginePricing20 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 BatesDblExpDetJumpEng() 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 BatesDblExpDetJumpEng() function call


MyBatesDblExpDetJumpEng_15.BATE2EXPJENG.0

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