SABR volatility (smile) surface. More...
#include <ql/experimental/volatility/sabrvolsurface.hpp>
Public Member Functions | |
SabrVolSurface (const ext::shared_ptr< InterestRateIndex > &, const Handle< BlackAtmVolCurve > &, const std::vector< Period > &optionTenors, const std::vector< Spread > &atmRateSpreads, const std::vector< std::vector< Handle< Quote > > > &volSpreads) | |
TermStructure interface | |
DayCounter | dayCounter () const |
the day counter used for date/time conversion | |
Date | maxDate () const |
the latest date for which the curve can return values | |
Time | maxTime () const |
the latest time for which the curve can return values | |
const Date & | referenceDate () const |
the date at which discount = 1.0 and/or variance = 0.0 | |
Calendar | calendar () const |
the calendar used for reference and/or option date calculation | |
Natural | settlementDays () const |
the settlementDays used for reference date calculation | |
VolatilityTermStructure interface | |
Real | minStrike () const |
the minimum strike for which the term structure can return vols | |
Real | maxStrike () const |
the maximum strike for which the term structure can return vols | |
const Handle< BlackAtmVolCurve > & | atmCurve () const |
BlackVolSurface interface | |
ext::shared_ptr< SmileSection > | smileSectionImpl (Time) const |
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InterestRateVolSurface (const ext::shared_ptr< InterestRateIndex > &, BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
InterestRateVolSurface (const ext::shared_ptr< InterestRateIndex > &, const Date &referenceDate, const Calendar &cal=Calendar(), BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
initialize with a fixed reference date | |
InterestRateVolSurface (const ext::shared_ptr< InterestRateIndex > &, Natural settlementDays, const Calendar &, BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
calculate the reference date based on the global evaluation date | |
Date | optionDateFromTenor (const Period &) const |
period/date conversion | |
const ext::shared_ptr< InterestRateIndex > & | index () const |
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BlackVolSurface (BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
default constructor More... | |
BlackVolSurface (const Date &referenceDate, const Calendar &cal=Calendar(), BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
initialize with a fixed reference date | |
BlackVolSurface (Natural settlementDays, const Calendar &, BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
calculate the reference date based on the global evaluation date | |
ext::shared_ptr< SmileSection > | smileSection (const Period &, bool extrapolate) const |
returns the smile for a given option tenor | |
ext::shared_ptr< SmileSection > | smileSection (const Date &, bool extrapolate) const |
returns the smile for a given option date | |
ext::shared_ptr< SmileSection > | smileSection (Time, bool extrapolate) const |
returns the smile for a given option time | |
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BlackAtmVolCurve (BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
default constructor More... | |
BlackAtmVolCurve (const Date &referenceDate, const Calendar &cal=Calendar(), BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
initialize with a fixed reference date | |
BlackAtmVolCurve (Natural settlementDays, const Calendar &, BusinessDayConvention bdc=Following, const DayCounter &dc=DayCounter()) | |
calculate the reference date based on the global evaluation date | |
virtual | ~BlackAtmVolCurve () |
Volatility | atmVol (const Period &optionTenor, bool extrapolate=false) const |
spot at-the-money volatility | |
Volatility | atmVol (const Date &maturity, bool extrapolate=false) const |
spot at-the-money volatility | |
Volatility | atmVol (Time maturity, bool extrapolate=false) const |
spot at-the-money volatility | |
Real | atmVariance (const Period &optionTenor, bool extrapolate=false) const |
spot at-the-money variance | |
Real | atmVariance (const Date &maturity, bool extrapolate=false) const |
spot at-the-money variance | |
Real | atmVariance (Time maturity, bool extrapolate=false) const |
spot at-the-money variance | |
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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 | |
VolatilityTermStructure (Natural settlementDays, const Calendar &cal, BusinessDayConvention bdc, const DayCounter &dc=DayCounter()) | |
calculate the reference date based on the global evaluation date | |
virtual BusinessDayConvention | businessDayConvention () const |
the business day convention used in tenor to date conversion | |
Date | optionDateFromTenor (const Period &) const |
period/date conversion | |
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TermStructure (const DayCounter &dc=DayCounter()) | |
default constructor More... | |
TermStructure (const Date &referenceDate, const Calendar &calendar=Calendar(), const DayCounter &dc=DayCounter()) | |
initialize with a fixed reference date | |
TermStructure (Natural settlementDays, const Calendar &, const DayCounter &dc=DayCounter()) | |
calculate the reference date based on the global evaluation date | |
virtual | ~TermStructure () |
Time | timeFromReference (const Date &date) const |
date/time conversion | |
void | update () |
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Observer (const Observer &) | |
Observer & | operator= (const Observer &) |
std::pair< iterator, bool > | registerWith (const ext::shared_ptr< Observable > &) |
void | registerWithObservables (const ext::shared_ptr< Observer > &) |
Size | unregisterWith (const ext::shared_ptr< Observable > &) |
void | unregisterWithAll () |
virtual void | deepUpdate () |
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Observable (const Observable &) | |
Observable & | operator= (const Observable &) |
void | notifyObservers () |
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void | enableExtrapolation (bool b=true) |
enable extrapolation in subsequent calls | |
void | disableExtrapolation (bool b=true) |
disable extrapolation in subsequent calls | |
bool | allowsExtrapolation () const |
tells whether extrapolation is enabled | |
Visitability | |
virtual void | accept (AcyclicVisitor &) |
std::vector< Volatility > | volatilitySpreads (const Period &) const |
std::vector< Volatility > | volatilitySpreads (const Date &) const |
boost::array< Real, 4 > | sabrGuesses (const Date &) const |
LazyObject interface | |
void | performCalculations () const |
virtual void | update () |
Additional Inherited Members | |
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typedef boost::unordered_set< ext::shared_ptr< Observable > > | set_type |
typedef set_type::iterator | iterator |
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Real | atmVarianceImpl (Time t) const |
spot at-the-money variance calculation | |
Volatility | atmVolImpl (Time t) const |
spot at-the-money volatility calculation | |
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. | |
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void | checkStrike (Rate strike, bool extrapolate) const |
strike-range check | |
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void | checkRange (const Date &d, bool extrapolate) const |
date-range check | |
void | checkRange (Time t, bool extrapolate) const |
time-range check | |
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ext::shared_ptr< InterestRateIndex > | index_ |
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bool | moving_ |
bool | updated_ |
Calendar | calendar_ |
SABR volatility (smile) surface.
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protectedvirtual |
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.