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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2000, 2001, 2002, 2003 RiskMap srl
Copyright (C) 2003 Ferdinando Ametrano
Copyright (C) 2007 StatPro Italia srl
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
<https://www.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.
*/
#include <ql/instruments/oneassetoption.hpp>
#include <ql/exercise.hpp>
#include <ql/event.hpp>
namespace QuantLib {
OneAssetOption::OneAssetOption(
const ext::shared_ptr<Payoff>& payoff,
const ext::shared_ptr<Exercise>& exercise)
: Option(payoff, exercise) {}
bool OneAssetOption::isExpired() const {
return detail::simple_event(exercise_->lastDate()).hasOccurred();
}
Real OneAssetOption::delta() const {
calculate();
QL_REQUIRE(delta_ != Null<Real>(), "delta not provided");
return delta_;
}
Real OneAssetOption::deltaForward() const {
calculate();
QL_REQUIRE(deltaForward_ != Null<Real>(),
"forward delta not provided");
return deltaForward_;
}
Real OneAssetOption::elasticity() const {
calculate();
QL_REQUIRE(elasticity_ != Null<Real>(), "elasticity not provided");
return elasticity_;
}
Real OneAssetOption::gamma() const {
calculate();
QL_REQUIRE(gamma_ != Null<Real>(), "gamma not provided");
return gamma_;
}
Real OneAssetOption::theta() const {
calculate();
QL_REQUIRE(theta_ != Null<Real>(), "theta not provided");
return theta_;
}
Real OneAssetOption::thetaPerDay() const {
calculate();
QL_REQUIRE(thetaPerDay_ != Null<Real>(), "theta per-day not provided");
return thetaPerDay_;
}
Real OneAssetOption::vega() const {
calculate();
QL_REQUIRE(vega_ != Null<Real>(), "vega not provided");
return vega_;
}
Real OneAssetOption::rho() const {
calculate();
QL_REQUIRE(rho_ != Null<Real>(), "rho not provided");
return rho_;
}
Real OneAssetOption::dividendRho() const {
calculate();
QL_REQUIRE(dividendRho_ != Null<Real>(), "dividend rho not provided");
return dividendRho_;
}
Real OneAssetOption::strikeSensitivity() const {
calculate();
QL_REQUIRE(strikeSensitivity_ != Null<Real>(),
"strike sensitivity not provided");
return strikeSensitivity_;
}
Real OneAssetOption::itmCashProbability() const {
calculate();
QL_REQUIRE(itmCashProbability_ != Null<Real>(),
"in-the-money cash probability not provided");
return itmCashProbability_;
}
void OneAssetOption::setupExpired() const {
Option::setupExpired();
delta_ = deltaForward_ = elasticity_ = gamma_ = theta_ =
thetaPerDay_ = vega_ = rho_ = dividendRho_ =
strikeSensitivity_ = itmCashProbability_ = 0.0;
}
void OneAssetOption::fetchResults(const PricingEngine::results* r) const {
Option::fetchResults(r);
const auto* results = dynamic_cast<const Greeks*>(r);
QL_ENSURE(results != nullptr, "no greeks returned from pricing engine");
/* no check on null values - just copy.
this allows:
a) to decide in derived options what to do when null
results are returned (throw? numerical calculation?)
b) to implement slim engines which only calculate the
value---of course care must be taken not to call
the greeks methods when using these.
*/
delta_ = results->delta;
gamma_ = results->gamma;
theta_ = results->theta;
vega_ = results->vega;
rho_ = results->rho;
dividendRho_ = results->dividendRho;
const auto* moreResults = dynamic_cast<const MoreGreeks*>(r);
QL_ENSURE(moreResults != nullptr, "no more greeks returned from pricing engine");
/* no check on null values - just copy.
this allows:
a) to decide in derived options what to do when null
results are returned (throw? numerical calculation?)
b) to implement slim engines which only calculate the
value---of course care must be taken not to call
the greeks methods when using these.
*/
deltaForward_ = moreResults->deltaForward;
elasticity_ = moreResults->elasticity;
thetaPerDay_ = moreResults->thetaPerDay;
strikeSensitivity_ = moreResults->strikeSensitivity;
itmCashProbability_ = moreResults->itmCashProbability;
}
}
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