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Public Member Functions | Protected Member Functions | Private Attributes | List of all members
SmileSection Class Referenceabstract

interest rate volatility smile section More...

#include <ql/termstructures/volatility/smilesection.hpp>

+ Inheritance diagram for SmileSection:
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Public Member Functions

 SmileSection (const Date &d, DayCounter dc=DayCounter(), const Date &referenceDate=Date(), VolatilityType type=ShiftedLognormal, Rate shift=0.0)
 
 SmileSection (Time exerciseTime, DayCounter dc=DayCounter(), VolatilityType type=ShiftedLognormal, Rate shift=0.0)
 
 SmileSection ()=default
 
 ~SmileSection () override=default
 
void update () override
 
virtual Real minStrike () const =0
 
virtual Real maxStrike () const =0
 
Real variance (Rate strike) const
 
Volatility volatility (Rate strike) const
 
virtual Real atmLevel () const =0
 
virtual const DateexerciseDate () const
 
virtual VolatilityType volatilityType () const
 
virtual Rate shift () const
 
virtual const DatereferenceDate () const
 
virtual Time exerciseTime () const
 
virtual const DayCounterdayCounter () const
 
virtual Real optionPrice (Rate strike, Option::Type type=Option::Call, Real discount=1.0) const
 
virtual Real digitalOptionPrice (Rate strike, Option::Type type=Option::Call, Real discount=1.0, Real gap=1.0e-5) const
 
virtual Real vega (Rate strike, Real discount=1.0) const
 
virtual Real density (Rate strike, Real discount=1.0, Real gap=1.0E-4) const
 
Volatility volatility (Rate strike, VolatilityType type, Real shift=0.0) const
 
- 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 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 ()
 

Protected Member Functions

virtual void initializeExerciseTime () const
 
virtual Real varianceImpl (Rate strike) const
 
virtual Volatility volatilityImpl (Rate strike) const =0
 

Private Attributes

bool isFloating_
 
Date referenceDate_
 
Date exerciseDate_
 
DayCounter dc_
 
Time exerciseTime_
 
VolatilityType volatilityType_
 
Rate shift_
 

Additional Inherited Members

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

Detailed Description

interest rate volatility smile section

This abstract class provides volatility smile section interface

Definition at line 38 of file smilesection.hpp.

Constructor & Destructor Documentation

◆ SmileSection() [1/3]

SmileSection ( const Date d,
DayCounter  dc = DayCounter(),
const Date referenceDate = Date(),
VolatilityType  type = ShiftedLognormal,
Rate  shift = 0.0 
)

Definition at line 46 of file smilesection.cpp.

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◆ SmileSection() [2/3]

SmileSection ( Time  exerciseTime,
DayCounter  dc = DayCounter(),
VolatilityType  type = ShiftedLognormal,
Rate  shift = 0.0 
)

Definition at line 61 of file smilesection.cpp.

◆ SmileSection() [3/3]

SmileSection ( )
default

◆ ~SmileSection()

~SmileSection ( )
overridedefault

Member Function Documentation

◆ update()

void update ( )
overridevirtual

This method must be implemented in derived classes. An instance of Observer does not call this method directly: instead, it will be called by the observables the instance registered with when they need to notify any changes.

Implements Observer.

Reimplemented in SpreadedSmileSection.

Definition at line 31 of file smilesection.cpp.

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◆ minStrike()

virtual Real minStrike ( ) const
pure virtual

◆ maxStrike()

virtual Real maxStrike ( ) const
pure virtual

◆ variance()

Real variance ( Rate  strike) const

Definition at line 98 of file smilesection.hpp.

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◆ volatility() [1/2]

Volatility volatility ( Rate  strike) const

Definition at line 102 of file smilesection.hpp.

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◆ atmLevel()

virtual Real atmLevel ( ) const
pure virtual

◆ exerciseDate()

virtual const Date & exerciseDate ( ) const
virtual

Reimplemented in AtmAdjustedSmileSection, AtmSmileSection, KahaleSmileSection, and SpreadedSmileSection.

Definition at line 60 of file smilesection.hpp.

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◆ volatilityType()

virtual VolatilityType volatilityType ( ) const
virtual

Reimplemented in AtmAdjustedSmileSection, AtmSmileSection, KahaleSmileSection, and SpreadedSmileSection.

Definition at line 61 of file smilesection.hpp.

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◆ shift()

virtual Rate shift ( ) const
virtual

Reimplemented in AtmAdjustedSmileSection, AtmSmileSection, KahaleSmileSection, and SpreadedSmileSection.

Definition at line 64 of file smilesection.hpp.

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◆ referenceDate()

const Date & referenceDate ( ) const
virtual

Reimplemented in AtmAdjustedSmileSection, AtmSmileSection, KahaleSmileSection, and SpreadedSmileSection.

Definition at line 106 of file smilesection.hpp.

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◆ exerciseTime()

virtual Time exerciseTime ( ) const
virtual

Reimplemented in AtmAdjustedSmileSection, AtmSmileSection, KahaleSmileSection, and SpreadedSmileSection.

Definition at line 66 of file smilesection.hpp.

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◆ dayCounter()

virtual const DayCounter & dayCounter ( ) const
virtual

◆ optionPrice()

Real optionPrice ( Rate  strike,
Option::Type  type = Option::Call,
Real  discount = 1.0 
) const
virtual

Reimplemented in NoArbSabrSmileSection, ZabrSmileSection< Evaluation >, AtmAdjustedSmileSection, KahaleSmileSection, and Gaussian1dSmileSection.

Definition at line 72 of file smilesection.cpp.

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◆ digitalOptionPrice()

Real digitalOptionPrice ( Rate  strike,
Option::Type  type = Option::Call,
Real  discount = 1.0,
Real  gap = 1.0e-5 
) const
virtual

Reimplemented in NoArbSabrSmileSection, and AtmAdjustedSmileSection.

Definition at line 88 of file smilesection.cpp.

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◆ vega()

Real vega ( Rate  strike,
Real  discount = 1.0 
) const
virtual

Reimplemented in AtmAdjustedSmileSection.

Definition at line 107 of file smilesection.cpp.

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◆ density()

Real density ( Rate  strike,
Real  discount = 1.0,
Real  gap = 1.0E-4 
) const
virtual

Reimplemented in NoArbSabrSmileSection, and AtmAdjustedSmileSection.

Definition at line 99 of file smilesection.cpp.

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◆ volatility() [2/2]

Real volatility ( Rate  strike,
VolatilityType  type,
Real  shift = 0.0 
) const

Definition at line 119 of file smilesection.cpp.

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◆ initializeExerciseTime()

void initializeExerciseTime ( ) const
protectedvirtual

Definition at line 38 of file smilesection.cpp.

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◆ varianceImpl()

Real varianceImpl ( Rate  strike) const
protectedvirtual

◆ volatilityImpl()

virtual Volatility volatilityImpl ( Rate  strike) const
protectedpure virtual

Member Data Documentation

◆ isFloating_

bool isFloating_
private

Definition at line 86 of file smilesection.hpp.

◆ referenceDate_

Date referenceDate_
mutableprivate

Definition at line 87 of file smilesection.hpp.

◆ exerciseDate_

Date exerciseDate_
private

Definition at line 88 of file smilesection.hpp.

◆ dc_

DayCounter dc_
private

Definition at line 89 of file smilesection.hpp.

◆ exerciseTime_

Time exerciseTime_
mutableprivate

Definition at line 90 of file smilesection.hpp.

◆ volatilityType_

VolatilityType volatilityType_
private

Definition at line 91 of file smilesection.hpp.

◆ shift_

Rate shift_
private

Definition at line 92 of file smilesection.hpp.