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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2009 Chris Kenyon
This file is part of QuantLib, a free-software/open-source library
for financial quantitative analysts and developers - http://quantlib.org/
QuantLib is free software: you can redistribute it and/or modify it
under the terms of the QuantLib license. You should have received a
copy of the license along with this program; if not, please email
<quantlib-dev@lists.sf.net>. The license is also available online at
<http://quantlib.org/license.shtml>.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the license for more details.
*/
/*! \file inflationcapfloorengines.hpp
\brief Inflation cap/floor engines
*/
#ifndef quantlib_pricers_inflation_capfloor_hpp
#define quantlib_pricers_inflation_capfloor_hpp
#include <ql/instruments/inflationcapfloor.hpp>
#include <ql/termstructures/volatility/inflation/yoyinflationoptionletvolatilitystructure.hpp>
#include <ql/option.hpp>
namespace QuantLib {
class Quote;
class YoYOptionletVolatilitySurface;
class YoYInflationIndex;
//! Base YoY inflation cap/floor engine
/*! This class doesn't know yet what sort of vol it is. The
inflation index must be linked to a yoy inflation term
structure.
\ingroup inflationcapfloorengines
*/
class YoYInflationCapFloorEngine : public YoYInflationCapFloor::engine {
public:
YoYInflationCapFloorEngine(const ext::shared_ptr<YoYInflationIndex>&,
const Handle<YoYOptionletVolatilitySurface>& vol,
const Handle<YieldTermStructure>& nominalTermStructure);
ext::shared_ptr<YoYInflationIndex> index() const { return index_;}
Handle<YoYOptionletVolatilitySurface> volatility() const { return volatility_; }
void setVolatility(const Handle<YoYOptionletVolatilitySurface>& vol);
void calculate() const;
protected:
//! descendents only need to implement this
virtual Real optionletImpl(Option::Type type, Rate strike,
Rate forward, Real stdDev,
Real d) const = 0;
ext::shared_ptr<YoYInflationIndex> index_;
Handle<YoYOptionletVolatilitySurface> volatility_;
Handle<YieldTermStructure> nominalTermStructure_;
};
//! Black-formula inflation cap/floor engine (standalone, i.e. no coupon pricer)
class YoYInflationBlackCapFloorEngine
: public YoYInflationCapFloorEngine {
public:
YoYInflationBlackCapFloorEngine(const ext::shared_ptr<YoYInflationIndex>&,
const Handle<YoYOptionletVolatilitySurface>& vol,
const Handle<YieldTermStructure>& nominalTermStructure);
protected:
virtual Real optionletImpl(Option::Type, Real strike,
Real forward, Real stdDev,
Real d) const;
};
//! Unit Displaced Black-formula inflation cap/floor engine (standalone, i.e. no coupon pricer)
class YoYInflationUnitDisplacedBlackCapFloorEngine
: public YoYInflationCapFloorEngine {
public:
YoYInflationUnitDisplacedBlackCapFloorEngine(
const ext::shared_ptr<YoYInflationIndex>&,
const Handle<YoYOptionletVolatilitySurface>& vol,
const Handle<YieldTermStructure>& nominalTermStructure);
protected:
virtual Real optionletImpl(Option::Type, Real strike,
Real forward, Real stdDev,
Real d) const;
};
//! Unit Displaced Black-formula inflation cap/floor engine (standalone, i.e. no coupon pricer)
class YoYInflationBachelierCapFloorEngine
: public YoYInflationCapFloorEngine {
public:
YoYInflationBachelierCapFloorEngine(
const ext::shared_ptr<YoYInflationIndex>&,
const Handle<YoYOptionletVolatilitySurface>& vol,
const Handle<YieldTermStructure>& nominalTermStructure);
protected:
virtual Real optionletImpl(Option::Type, Real strike,
Real forward, Real stdDev,
Real d) const;
};
}
#endif
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