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Public Member Functions | List of all members
LocalConstantVol Class Reference

Constant local volatility, no time-strike dependence. More...

#include <localconstantvol.hpp>

+ Inheritance diagram for LocalConstantVol:
+ Collaboration diagram for LocalConstantVol:

Public Member Functions

 LocalConstantVol (const Date &referenceDate, Volatility volatility, DayCounter dayCounter)
 
 LocalConstantVol (const Date &referenceDate, Handle< Quote > volatility, DayCounter dayCounter)
 
 LocalConstantVol (Natural settlementDays, const Calendar &, Volatility volatility, DayCounter dayCounter)
 
 LocalConstantVol (Natural settlementDays, const Calendar &, Handle< Quote > volatility, DayCounter dayCounter)
 
TermStructure interface
DayCounter dayCounter () const override
 the day counter used for date/time conversion More...
 
Date maxDate () const override
 the latest date for which the curve can return values More...
 
VolatilityTermStructure interface
Real minStrike () const override
 the minimum strike for which the term structure can return vols More...
 
Real maxStrike () const override
 the maximum strike for which the term structure can return vols More...
 
- Public Member Functions inherited from LocalVolTermStructure
 LocalVolTermStructure (BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter())
 default constructor More...
 
 LocalVolTermStructure (const Date &referenceDate, const Calendar &cal=Calendar(), BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter())
 initialize with a fixed reference date More...
 
 LocalVolTermStructure (Natural settlementDays, const Calendar &, BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter())
 calculate the reference date based on the global evaluation date More...
 
 ~LocalVolTermStructure () override=default
 
Volatility localVol (const Date &d, Real underlyingLevel, bool extrapolate=false) const
 
Volatility localVol (Time t, Real underlyingLevel, bool extrapolate=false) const
 
- Public Member Functions inherited from VolatilityTermStructure
 VolatilityTermStructure (BusinessDayConvention bdc, const DayCounter &dc=DayCounter())
 
 VolatilityTermStructure (const Date &referenceDate, const Calendar &cal, BusinessDayConvention bdc, const DayCounter &dc=DayCounter())
 initialize with a fixed reference date More...
 
 VolatilityTermStructure (Natural settlementDays, const Calendar &cal, BusinessDayConvention bdc, const DayCounter &dc=DayCounter())
 calculate the reference date based on the global evaluation date More...
 
virtual BusinessDayConvention businessDayConvention () const
 the business day convention used in tenor to date conversion More...
 
Date optionDateFromTenor (const Period &) const
 period/date conversion More...
 
- Public Member Functions inherited from TermStructure
 TermStructure (DayCounter dc=DayCounter())
 default constructor More...
 
 TermStructure (const Date &referenceDate, Calendar calendar=Calendar(), DayCounter dc=DayCounter())
 initialize with a fixed reference date More...
 
 TermStructure (Natural settlementDays, Calendar, DayCounter dc=DayCounter())
 calculate the reference date based on the global evaluation date More...
 
 ~TermStructure () override=default
 
Time timeFromReference (const Date &date) const
 date/time conversion More...
 
virtual Time maxTime () const
 the latest time for which the curve can return values More...
 
virtual const DatereferenceDate () const
 the date at which discount = 1.0 and/or variance = 0.0 More...
 
virtual Calendar calendar () const
 the calendar used for reference and/or option date calculation More...
 
virtual Natural settlementDays () const
 the settlementDays used for reference date calculation More...
 
void update () override
 
- Public Member Functions inherited from Observer
 Observer ()=default
 
 Observer (const Observer &)
 
Observeroperator= (const Observer &)
 
virtual ~Observer ()
 
std::pair< iterator, boolregisterWith (const ext::shared_ptr< Observable > &)
 
void registerWithObservables (const ext::shared_ptr< Observer > &)
 
Size unregisterWith (const ext::shared_ptr< Observable > &)
 
void unregisterWithAll ()
 
virtual void update ()=0
 
virtual void deepUpdate ()
 
- Public Member Functions inherited from Observable
 Observable ()
 
 Observable (const Observable &)
 
Observableoperator= (const Observable &)
 
 Observable (Observable &&)=delete
 
Observableoperator= (Observable &&)=delete
 
virtual ~Observable ()=default
 
void notifyObservers ()
 
- Public Member Functions inherited from Extrapolator
 Extrapolator ()=default
 
virtual ~Extrapolator ()=default
 
void enableExtrapolation (bool b=true)
 enable extrapolation in subsequent calls More...
 
void disableExtrapolation (bool b=true)
 disable extrapolation in subsequent calls More...
 
bool allowsExtrapolation () const
 tells whether extrapolation is enabled More...
 

Visitability

Handle< Quotevolatility_
 
DayCounter dayCounter_
 
void accept (AcyclicVisitor &) override
 
Volatility localVolImpl (Time, Real) const override
 local vol calculation More...
 

Additional Inherited Members

- Public Types inherited from Observer
typedef set_type::iterator iterator
 
Calculations

These methods must be implemented in derived classes to perform the actual volatility calculations. When they are called, range check has already been performed; therefore, they must assume that extrapolation is required.

- Protected Member Functions inherited from VolatilityTermStructure
void checkStrike (Rate strike, bool extrapolate) const
 strike-range check More...
 
- Protected Member Functions inherited from TermStructure
void checkRange (const Date &d, bool extrapolate) const
 date-range check More...
 
void checkRange (Time t, bool extrapolate) const
 time-range check More...
 
- Protected Attributes inherited from TermStructure
bool moving_ = false
 
bool updated_ = true
 
Calendar calendar_
 

Detailed Description

Constant local volatility, no time-strike dependence.

This class implements the LocalVolatilityTermStructure interface for a constant local volatility (no time/asset dependence). Local volatility and Black volatility are the same when volatility is at most time dependent, so this class is basically a proxy for BlackVolatilityTermStructure.

Definition at line 40 of file localconstantvol.hpp.

Constructor & Destructor Documentation

◆ LocalConstantVol() [1/4]

LocalConstantVol ( const Date referenceDate,
Volatility  volatility,
DayCounter  dayCounter 
)

Definition at line 76 of file localconstantvol.hpp.

◆ LocalConstantVol() [2/4]

LocalConstantVol ( const Date referenceDate,
Handle< Quote volatility,
DayCounter  dayCounter 
)

Definition at line 83 of file localconstantvol.hpp.

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◆ LocalConstantVol() [3/4]

LocalConstantVol ( Natural  settlementDays,
const Calendar calendar,
Volatility  volatility,
DayCounter  dayCounter 
)

Definition at line 91 of file localconstantvol.hpp.

◆ LocalConstantVol() [4/4]

LocalConstantVol ( Natural  settlementDays,
const Calendar calendar,
Handle< Quote volatility,
DayCounter  dayCounter 
)

Definition at line 99 of file localconstantvol.hpp.

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Member Function Documentation

◆ dayCounter()

DayCounter dayCounter ( ) const
overridevirtual

the day counter used for date/time conversion

Reimplemented from TermStructure.

Definition at line 56 of file localconstantvol.hpp.

◆ maxDate()

Date maxDate ( ) const
overridevirtual

the latest date for which the curve can return values

Implements TermStructure.

Definition at line 57 of file localconstantvol.hpp.

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◆ minStrike()

Real minStrike ( ) const
overridevirtual

the minimum strike for which the term structure can return vols

Implements VolatilityTermStructure.

Definition at line 61 of file localconstantvol.hpp.

◆ maxStrike()

Real maxStrike ( ) const
overridevirtual

the maximum strike for which the term structure can return vols

Implements VolatilityTermStructure.

Definition at line 62 of file localconstantvol.hpp.

◆ accept()

void accept ( AcyclicVisitor v)
overridevirtual

Reimplemented from LocalVolTermStructure.

Definition at line 108 of file localconstantvol.hpp.

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◆ localVolImpl()

Volatility localVolImpl ( Time  t,
Real  strike 
) const
overrideprivatevirtual

local vol calculation

Implements LocalVolTermStructure.

Definition at line 116 of file localconstantvol.hpp.

Member Data Documentation

◆ volatility_

Handle<Quote> volatility_
private

Definition at line 70 of file localconstantvol.hpp.

◆ dayCounter_

DayCounter dayCounter_
private

Definition at line 71 of file localconstantvol.hpp.