Touch

Touch instrument object

Description

Create and price a Touch instrument object for one or more Touch instruments using this workflow:

1. Use fininstrument to create a Touch instrument object for one or more Touch instruments.

2. Use finmodel to specify a BlackScholes, Bates, Merton, or Heston model for the Touch instrument object.

3. Choose a pricing method.

   • When using a BlackScholes model, use finpricer to specify a BlackScholes or a VannaVolga pricing method for one or more Barrier instruments.

   • When using a BlackScholes, Heston, Bates, or Merton model, use finpricer to specify an AssetMonteCarlo pricing method for one or more Touch instruments.

For more information on this workflow, see Get Started with Workflows Using Object-Based Framework for Pricing Financial Instruments.

For more information on the available models and pricing methods for a Touch instrument, see Choose Instruments, Models, and Pricers.

Creation

Syntax

TouchOpt = fininstrument(InstrumentType,'ExerciseDate',exercise_date,'BarrierValue',barrier_value,'PayoffValue',payoff_value)

TouchOpt = fininstrument(___,Name,Value)

Description

TouchOpt = fininstrument(InstrumentType,'ExerciseDate',exercise_date,'BarrierValue',barrier_value,'PayoffValue',payoff_value) creates a Touch instrument object for one or more Touch instruments by specifying InstrumentType and sets properties using the required name-value pair arguments ExerciseDate, BarrierValue, and PayoffValue.

TouchOpt = fininstrument(___,Name,Value) sets optional properties using additional name-value pair arguments in addition to the required arguments in the previous syntax. For example, TouchOpt = fininstrument("Touch",'ExerciseDate',datetime(2019,1,30),'BarrierValue',110,'PayoffValue',130,'BarrierType',"OT",'PayoffType',"Expiry",'Name',"Touch_option") creates a Touch option with an expiry payoff type. You can specify multiple name-value pair arguments.

Input Arguments

InstrumentType — Instrument type

string with value "Touch" | string array with values of "Touch" | character vector with value 'Touch' | cell array of character vectors with values of 'Touch'

Instrument type, specified as a string with the value of "Touch", a character vector with the value of 'Touch', an NINST-by-1 string array with values of "Touch", or an NINST-by-1 cell array of character vectors with values of 'Touch'.

Data Types: char | cell | string

Name-Value Arguments

Specify required and optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: TouchOpt = fininstrument("Touch",'ExerciseDate',datetime(2019,1,30),'BarrierValue',110,'PayoffValue',130,'BarrierType',"OT",'PayoffType',"Expiry",'Name',"Touch_option")

Required Touch Name-Value Pair Arguments

ExerciseDate — Option exercise date

datetime array | string array | date character vector

Option exercise date, specified as the comma-separated pair consisting of 'ExerciseDate' and a scalar or an NINST-by-1 vector using a datetime array, string array, or date character vectors.

To support existing code, Touch also accepts serial date numbers as inputs, but they are not recommended.

If you use date character vectors or strings, the format must be recognizable by datetime because the ExerciseDate property is stored as a datetime.

BarrierValue — Barrier level

scalar numeric | numeric vector

Barrier level, specified as the comma-separated pair consisting of 'BarrierValue' and a scalar numeric or an NINST-by-1 numeric vector.

Data Types: double

PayoffValue — Option payoff value

scalar numeric | numeric vector

Option payoff value, specified as the comma-separated pair consisting of 'PayoffValue' and a scalar numeric or an NINST-by-1 numeric vector.

Data Types: double

Optional Touch Name-Value Pair Arguments

BarrierType — Barrier type

"OT" (default) | string with value "OT" or "NT" | string array with values "OT" or "NT" | character vector with value 'OT' or 'NT' | cell array of character vectors with values 'OT' or 'NT'

Barrier type, specified as the comma-separated pair consisting of 'BarrierType' and a scalar string or character vector or an NINST-by-1 cell array of character vectors or string array with one of the following values:

• 'OT' — One-touch

  The one-touch option provides a payoff if the underlying asset ever trades at or beyond the BarrierValue. Otherwise, the PayoffValue is zero.

• 'NT' — No-touch

  The no-touch option provides a payoff if the underlying asset never trades at or beyond the BarrierValue. Otherwise, the PayoffValue is zero.

Data Types: char | cell | string

PayoffType — Payoff type

"Hit" (default) | string with value "Hit" or "Expiry" | string array with values "Hit" or "Expiry" | character vector with value 'Hit' or 'Expiry' | cell array of character vectors with values 'Hit' or 'Expiry'

Payoff type, specified as the comma-separated pair consisting of 'PayoffType' and a scalar string or character vector or an NINST-by-1 cell array of character vectors or string array. You can specify "Expiry" only when you specify 'OT' as the BarrierType.

Note

When you use a BlackScholes pricer, only the "Hit" PayoffType is supported.

Data Types: char | cell | string

Name — User-defined name for instrument

" " (default) | string | string array | character vector | cell array of character vectors

User-defined name for one of more instruments, specified as the comma-separated pair consisting of 'Name' and a scalar string or character vector or an NINST-by-1 cell array of character vectors or string array.

Data Types: char | cell | string

Output Arguments

TouchOpt — Touch instrument

Touch object

Touch instrument, returned as a Touch object.

Properties

ExerciseDate — Option exercise date

datetime | vector of datetimes

Option exercise date, returned as a scalar datetime or an NINST-by-1 vector of datetimes.

Data Types: datetime

BarrierValue — Barrier level

scalar numeric | numeric vector

Barrier level, returned as a scalar numeric or an NINST-by-1 numeric vector.

Data Types: double

PayoffValue — Option payoff

scalar numeric | numeric vector

Option payoff, returned as a scalar numeric or an NINST-by-1 numeric vector.

Data Types: double

BarrierType — Barrier type

"OT" (default) | string with value "OT" or "NT" | string array with values "OT" or "NT"

Barrier type, returned as a scalar string or an NINST-by-1 string array.

Data Types: string

PayoffType — Payoff type

"Hit" (default) | string with value "Hit" or "Expiry" | string array with values "Hit" or "Expiry"

Option type, returned as a scalar string or an NINST-by-1 string array.

Data Types: string

Name — User-defined name for instrument

" " (default) | string | string array

User-defined name for the instrument, returned as a scalar string or an NINST-by-1 string array.

Data Types: string

Examples

Price Touch Instrument Using BlackScholes Model and AssetMonteCarlo Pricer

This example shows the workflow to price a Touch instrument when you use a BlackScholes model and an AssetMonteCarlo pricing method.

Create Touch Instrument Object

Use fininstrument to create a Touch instrument object.

TouchOpt = fininstrument("Touch",'ExerciseDate',datetime(2022,9,15),'BarrierValue',100,'PayoffValue',110,'BarrierType',"OT",'Name',"touch_option")

TouchOpt = 
  Touch with properties:

    ExerciseDate: 15-Sep-2022
    BarrierValue: 100
     PayoffValue: 110
     BarrierType: "ot"
      PayoffType: "expiry"
            Name: "touch_option"

Create BlackScholes Model Object

Use finmodel to create a BlackScholes model object.

BlackScholesModel = finmodel("BlackScholes",'Volatility',.2)

BlackScholesModel = 
  BlackScholes with properties:

     Volatility: 0.2000
    Correlation: 1

Create ratecurve Object

Create a flat ratecurve object using ratecurve.

Settle = datetime(2018,9,15);
Maturity = datetime(2023,9,15);
Rate = 0.035;
myRC = ratecurve('zero',Settle,Maturity,Rate,'Basis',12)

myRC = 
  ratecurve with properties:

                 Type: "zero"
          Compounding: -1
                Basis: 12
                Dates: 15-Sep-2023
                Rates: 0.0350
               Settle: 15-Sep-2018
         InterpMethod: "linear"
    ShortExtrapMethod: "next"
     LongExtrapMethod: "previous"

Create AssetMonteCarlo Pricer Object

Use finpricer to create an AssetMonteCarlo pricer object and use the ratecurve object for the 'DiscountCurve' name-value pair argument.

outPricer = finpricer("AssetMonteCarlo",'DiscountCurve',myRC,"Model",BlackScholesModel,'SpotPrice',102,'simulationDates',datetime(2022,9,15))

outPricer = 
  GBMMonteCarlo with properties:

           DiscountCurve: [1×1 ratecurve]
               SpotPrice: 102
         SimulationDates: 15-Sep-2022
               NumTrials: 1000
           RandomNumbers: []
                   Model: [1×1 finmodel.BlackScholes]
            DividendType: "continuous"
           DividendValue: 0
        MonteCarloMethod: "standard"
    BrownianMotionMethod: "standard"

Price Touch Instrument

Use price to compute the price and sensitivities for the Touch instrument.

[Price, outPR] = price(outPricer,TouchOpt,["all"])

Price = 
91.1862

outPR = 
  priceresult with properties:

       Results: [1×7 table]
    PricerData: [1×1 struct]

outPR.Results 

ans=1×7 table
    Price      Delta      Gamma      Lambda       Rho      Theta      Vega 
    ______    _______    ________    _______    _______    ______    ______

    91.186    -2.1825    0.038281    -2.4413    -415.45    2.7374    35.998

Price Touch Instrument Using BlackScholes Model and AssetMonteCarlo Pricer with Quasi-Monte Carlo Simulation

This example shows the workflow to price a Touch instrument when you use a BlackScholes model and an AssetMonteCarlo pricing method with quasi-Monte Carlo simulation.

Create Touch Instrument Object

Use fininstrument to create a Touch instrument object.

TouchOpt = fininstrument("Touch",'ExerciseDate',datetime(2022,9,15),'BarrierValue',100,'PayoffValue',110,'BarrierType',"OT",'Name',"touch_option")

TouchOpt = 
  Touch with properties:

    ExerciseDate: 15-Sep-2022
    BarrierValue: 100
     PayoffValue: 110
     BarrierType: "ot"
      PayoffType: "expiry"
            Name: "touch_option"

Create BlackScholes Model Object

Use finmodel to create a BlackScholes model object.

BlackScholesModel = finmodel("BlackScholes",'Volatility',.2)

BlackScholesModel = 
  BlackScholes with properties:

     Volatility: 0.2000
    Correlation: 1

Create ratecurve Object

Create a flat ratecurve object using ratecurve.

Settle = datetime(2018,9,15);
Maturity = datetime(2023,9,15);
Rate = 0.035;
myRC = ratecurve('zero',Settle,Maturity,Rate,'Basis',12)

myRC = 
  ratecurve with properties:

                 Type: "zero"
          Compounding: -1
                Basis: 12
                Dates: 15-Sep-2023
                Rates: 0.0350
               Settle: 15-Sep-2018
         InterpMethod: "linear"
    ShortExtrapMethod: "next"
     LongExtrapMethod: "previous"

Create AssetMonteCarlo Pricer Object

Use finpricer to create an AssetMonteCarlo pricer object and use the ratecurve object for the 'DiscountCurve' name-value argument and use the name-value arguments for MonteCarloMethod and BrownianMotionMethod.

outPricer = finpricer("AssetMonteCarlo",'DiscountCurve',myRC,"Model",BlackScholesModel,'SpotPrice',102,'simulationDates',datetime(2022,9,15),'NumTrials',1e3, ...
                     'MonteCarloMethod',"quasi",'BrownianMotionMethod',"brownian-bridge")

outPricer = 
  GBMMonteCarlo with properties:

           DiscountCurve: [1×1 ratecurve]
               SpotPrice: 102
         SimulationDates: 15-Sep-2022
               NumTrials: 1000
           RandomNumbers: []
                   Model: [1×1 finmodel.BlackScholes]
            DividendType: "continuous"
           DividendValue: 0
        MonteCarloMethod: "quasi"
    BrownianMotionMethod: "brownian-bridge"

Price Touch Instrument

Use price to compute the price and sensitivities for the Touch instrument.

[Price, outPR] = price(outPricer,TouchOpt,"all")

Price = 
91.1570

outPR = 
  priceresult with properties:

       Results: [1×7 table]
    PricerData: [1×1 struct]

outPR.Results 

ans=1×7 table
    Price      Delta      Gamma      Lambda       Rho      Theta      Vega 
    ______    _______    ________    _______    _______    ______    ______

    91.157    -2.1979    0.038396    -2.4594    -414.83    2.7317    36.009

Price Multiple Touch Instruments Using BlackScholes Model and BlackScholes Pricer

This example shows the workflow to price multiple Touch instruments when you use a BlackScholes model and a BlackScholes pricing method.

Create Touch Instrument Object

Use fininstrument to create a Touch instrument object for three Touch instruments.

TouchOpt = fininstrument("Touch",'ExerciseDate',datetime([2022,9,15 ; 2022,10,15 ; 2022,11,15]),'BarrierValue',[140 ; 160 ; 190],'PayoffValue',170,'BarrierType',"OT",'Name',"touch_option")

TouchOpt=3×1 Touch array with properties:
    ExerciseDate
    BarrierValue
    PayoffValue
    BarrierType
    PayoffType
    Name

Create BlackScholes Model Object

Use finmodel to create a BlackScholes model object.

BlackScholesModel = finmodel("BlackScholes",'Volatility',0.28)

BlackScholesModel = 
  BlackScholes with properties:

     Volatility: 0.2800
    Correlation: 1

Create ratecurve Object

Create a flat ratecurve object using ratecurve.

Settle = datetime(2018,9,15);
Maturity = datetime(2023,9,15);
Rate = 0.035;
myRC = ratecurve('zero',Settle,Maturity,Rate,'Basis',12)

myRC = 
  ratecurve with properties:

                 Type: "zero"
          Compounding: -1
                Basis: 12
                Dates: 15-Sep-2023
                Rates: 0.0350
               Settle: 15-Sep-2018
         InterpMethod: "linear"
    ShortExtrapMethod: "next"
     LongExtrapMethod: "previous"

Create BlackScholes Pricer Object

Use finpricer to create a BlackScholes pricer object and use the ratecurve object for the 'DiscountCurve' name-value pair argument.

outPricer = finpricer("analytic",'DiscountCurve',myRC,'Model',BlackScholesModel,'SpotPrice',135,'DividendValue',0.045)

outPricer = 
  BlackScholes with properties:

    DiscountCurve: [1×1 ratecurve]
            Model: [1×1 finmodel.BlackScholes]
        SpotPrice: 135
    DividendValue: 0.0450
     DividendType: "continuous"

Price Touch Instruments

Use price to compute the prices and sensitivities for the Touch instruments.

[Price, outPR] = price(outPricer,TouchOpt,["all"])

Price = 3×1

  136.5553
   99.8742
   63.6835

outPR=3×1 priceresult array with properties:
    Results
    PricerData

outPR.Results 

ans=1×7 table
    Price     Delta      Gamma      Lambda     Vega     Theta       Rho  
    ______    ______    ________    ______    ______    ______    _______

    136.56    2.2346    0.005457    2.2092    30.812    3.9013    -465.89

ans=1×7 table
    Price     Delta      Gamma      Lambda     Vega       Theta        Rho  
    ______    ______    ________    ______    ______    _________    _______

    99.874    1.8197    0.008319    2.4597    120.98    0.0043188    -138.47

ans=1×7 table
    Price     Delta       Gamma      Lambda     Vega      Theta      Rho  
    ______    ______    _________    ______    ______    _______    ______

    63.683    1.3221    0.0099462    2.8028    182.58    -3.0963    72.793

Price Touch Instrument Using Heston Model and AssetMonteCarlo Pricer

This example shows the workflow to price a Touch instrument when you use a Heston model and an AssetMonteCarlo pricing method.

Create Touch Instrument Object

Use fininstrument to create a Touch instrument object.

TouchOpt = fininstrument("Touch",'ExerciseDate',datetime(2022,9,15),'BarrierValue',110,'PayoffValue',140,'BarrierType',"OT",'Name',"touch_option")

TouchOpt = 
  Touch with properties:

    ExerciseDate: 15-Sep-2022
    BarrierValue: 110
     PayoffValue: 140
     BarrierType: "ot"
      PayoffType: "expiry"
            Name: "touch_option"

Create Heston Model Object

Use finmodel to create a Heston model object.

HestonModel = finmodel("Heston",'V0',0.032,'ThetaV',0.1,'Kappa',0.003,'SigmaV',0.2,'RhoSV',0.9)

HestonModel = 
  Heston with properties:

        V0: 0.0320
    ThetaV: 0.1000
     Kappa: 0.0030
    SigmaV: 0.2000
     RhoSV: 0.9000

Create ratecurve Object

Create a flat ratecurve object using ratecurve.

Settle = datetime(2018,9,15);
Maturity = datetime(2023,9,15);
Rate = 0.035;
myRC = ratecurve('zero',Settle,Maturity,Rate,'Basis',12)

myRC = 
  ratecurve with properties:

                 Type: "zero"
          Compounding: -1
                Basis: 12
                Dates: 15-Sep-2023
                Rates: 0.0350
               Settle: 15-Sep-2018
         InterpMethod: "linear"
    ShortExtrapMethod: "next"
     LongExtrapMethod: "previous"

Create AssetMonteCarlo Pricer Object

Use finpricer to create an AssetMonteCarlo pricer object and use the ratecurve object for the 'DiscountCurve' name-value pair argument.

outPricer = finpricer("AssetMonteCarlo",'DiscountCurve',myRC,"Model",HestonModel,'SpotPrice',112,'simulationDates',datetime(2022,9,15))

outPricer = 
  HestonMonteCarlo with properties:

           DiscountCurve: [1×1 ratecurve]
               SpotPrice: 112
         SimulationDates: 15-Sep-2022
               NumTrials: 1000
           RandomNumbers: []
                   Model: [1×1 finmodel.Heston]
            DividendType: "continuous"
           DividendValue: 0
        MonteCarloMethod: "standard"
    BrownianMotionMethod: "standard"

Price Touch Instrument

Use price to compute the price and sensitivities for the Touch instrument.

[Price, outPR] = price(outPricer,TouchOpt,["all"])

Price = 
63.5247

outPR = 
  priceresult with properties:

       Results: [1×8 table]
    PricerData: [1×1 struct]

outPR.Results 

ans=1×8 table
    Price      Delta     Gamma     Lambda       Rho      Theta      Vega     VegaLT
    ______    _______    ______    _______    _______    ______    ______    ______

    63.525    -7.2363    1.0541    -12.758    -320.21    3.5527    418.94    8.1498

Price Touch Instrument Using BlackScholes Model and BlackScholes Pricer

This example shows the workflow to price a Touch instrument when you use a BlackScholes model and a BlackScholes pricing method.

Create Touch Instrument Object

Use fininstrument to create a Touch instrument object.

TouchOpt = fininstrument("Touch",'ExerciseDate',datetime(2022,9,15),'BarrierValue',140,'PayoffValue',170,'BarrierType',"OT",'Name',"touch_option")

TouchOpt = 
  Touch with properties:

    ExerciseDate: 15-Sep-2022
    BarrierValue: 140
     PayoffValue: 170
     BarrierType: "ot"
      PayoffType: "expiry"
            Name: "touch_option"

Create BlackScholes Model Object

Use finmodel to create a BlackScholes model object.

BlackScholesModel = finmodel("BlackScholes",'Volatility',0.28)

BlackScholesModel = 
  BlackScholes with properties:

     Volatility: 0.2800
    Correlation: 1

Create ratecurve Object

Create a flat ratecurve object using ratecurve.

Settle = datetime(2018,9,15);
Maturity = datetime(2023,9,15);
Rate = 0.035;
myRC = ratecurve('zero',Settle,Maturity,Rate,'Basis',12)

myRC = 
  ratecurve with properties:

                 Type: "zero"
          Compounding: -1
                Basis: 12
                Dates: 15-Sep-2023
                Rates: 0.0350
               Settle: 15-Sep-2018
         InterpMethod: "linear"
    ShortExtrapMethod: "next"
     LongExtrapMethod: "previous"

Create BlackScholes Pricer Object

Use finpricer to create a BlackScholes pricer object and use the ratecurve object for the 'DiscountCurve' name-value pair argument.

outPricer = finpricer("analytic",'DiscountCurve',myRC,'Model',BlackScholesModel,'SpotPrice',135,'DividendValue',0.045)

outPricer = 
  BlackScholes with properties:

    DiscountCurve: [1×1 ratecurve]
            Model: [1×1 finmodel.BlackScholes]
        SpotPrice: 135
    DividendValue: 0.0450
     DividendType: "continuous"

Price Touch Instrument

Use price to compute the price and sensitivities for the Touch instrument.

[Price, outPR] = price(outPricer,TouchOpt,["all"])

Price = 
136.5553

outPR = 
  priceresult with properties:

       Results: [1×7 table]
    PricerData: []

outPR.Results 

ans=1×7 table
    Price     Delta      Gamma      Lambda     Vega     Theta       Rho  
    ______    ______    ________    ______    ______    ______    _______

    136.56    2.2346    0.005457    2.2092    30.812    3.9013    -465.89

More About

Touch Option

A touch option (also known as a binary barrier option or American digital) is a path-dependent option where the existence and payout depend on the underlying spot's movement during the option life.

The one-touch option pays out if the underlying spot ever trades at or beyond a predetermined barrier level, and zero otherwise. The barrier can be an upper or lower level, triggering a payout for a one-touch call or put option respectively if the price touches or exceeds the barrier during the option's term. The option expires at a fixed date, paying out if the barrier is touched at any point during the term, regardless of the price at expiration.

For more information, see One-Touch and Double One-Touch Options.

Version History

Introduced in R2020b

R2022b: Serial date numbers not recommended

Although Touch supports serial date numbers, datetime values are recommended instead. The datetime data type provides flexible date and time formats, storage out to nanosecond precision, and properties to account for time zones and daylight saving time.

To convert serial date numbers or text to datetime values, use the datetime function. For example:

t = datetime(738427.656845093,"ConvertFrom","datenum");
y = year(t)

y =

        2021

There are no plans to remove support for serial date number inputs.