QuantLib: a free/open-source library for quantitative finance
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coshestonengine.hpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2017 Klaus Spanderen
5
6 This file is part of QuantLib, a free-software/open-source library
7 for financial quantitative analysts and developers - http://quantlib.org/
8
9 QuantLib is free software: you can redistribute it and/or modify it
10 under the terms of the QuantLib license. You should have received a
11 copy of the license along with this program; if not, please email
12 <quantlib-dev@lists.sf.net>. The license is also available online at
13 <http://quantlib.org/license.shtml>.
14
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 FOR A PARTICULAR PURPOSE. See the license for more details.
18*/
19
20/*! \file coshestonengine.hpp
21 \brief Heston engine based on Fourier-Cosine series expansions
22*/
23
24#ifndef quantlib_cos_heston_engine_hpp
25#define quantlib_cos_heston_engine_hpp
26
30
31#include <complex>
32
33namespace QuantLib {
34
35 //! COS-method Heston engine based on efficient Fourier series expansions
36
37 /*! References:
38
39 F. Fang, C.W. Oosterlee: A Novel Pricing Method for European Ooptions
40 based on Fourier-Cosine Series Expansions,
41 http://ta.twi.tudelft.nl/mf/users/oosterle/oosterlee/COS.pdf
42
43 Fabien Le Floc'h: Fourier Integration and Stochastic Volatility
44 Calibration,
45 https://papers.ssrn.com/sol3/papers2.cfm?abstract_id=2362968
46
47 \ingroup vanillaengines
48
49 \test the correctness of the returned value is tested by
50 reproducing results available in web/literature
51 and comparison with Black pricing.
52 */
54 : public GenericModelEngine<HestonModel,
55 VanillaOption::arguments,
56 VanillaOption::results> {
57 public:
58 explicit COSHestonEngine(const ext::shared_ptr<HestonModel>& model,
59 Real L = 16, Size N=200);
60
61 void update() override;
62 void calculate() const override;
63
64 // normalized characteristic function
65 std::complex<Real> chF(Real u, Real t) const;
66
67 Real c1(Time t) const;
68 Real c2(Time t) const;
69 Real c3(Time t) const;
70 Real c4(Time t) const;
71
72 Real mu(Time t) const;
73 Real var(Time t) const;
74 Real skew(Time t) const;
75 Real kurtosis(Time t) const;
76
77 private:
78 Real muT(Time t) const;
79
80 const Real L_;
81 const Size N_;
83 };
84}
85
86#endif
COS-method Heston engine based on efficient Fourier series expansions.
void calculate() const override
std::complex< Real > chF(Real u, Real t) const
Real kurtosis(Time t) const
Base class for some pricing engine on a particular model.
const DefaultType & t
Generic option engine based on a model.
Real Time
continuous quantity with 1-year units
Definition: types.hpp:62
QL_REAL Real
real number
Definition: types.hpp:50
std::size_t Size
size of a container
Definition: types.hpp:58
Heston model for the stochastic volatility of an asset.
Definition: any.hpp:35
Vanilla option on a single asset.