//------------------------------------------------------------------------
RiskyFloatingBond::RiskyFloatingBond(
std::string name,
Currency ccy,
Real recoveryRate,
Handle<DefaultProbabilityTermStructure> defaultTS,
Schedule schedule,
boost::shared_ptr<IborIndex> index,
Integer fixingDays,
Real spread,
std::vector<Real> notionals,
Handle<YieldTermStructure> yieldTS,
Natural settlementDays)
: RiskyBond(name, ccy, recoveryRate, defaultTS, yieldTS,
settlementDays, schedule.calendar()),
schedule_(schedule),
index_(index),
fixingDays_(fixingDays),
spread_(spread),
notionals_(notionals) {
// FIXME: Take paymentConvention into account
std::vector<Date> dates = schedule_.dates();
Real previousNotional = notionals_.front();
for (Size i = 1; i < dates.size(); i++) {
Real currentNotional = (i < notionals_.size() ?
notionals_[i] :
notionals_.back());
boost::shared_ptr<CashFlow> interest (new
IborCoupon(dates[i], previousNotional, dates[i-1], dates[i],
fixingDays_, index_, 1.0, spread_));
boost::shared_ptr<CashFlow> amortization(new
AmortizingPayment(previousNotional - currentNotional, dates[i]));
previousNotional = currentNotional;
leg_.push_back(interest);
interestLeg_.push_back(interest);
if (amortization->amount() != 0){
leg_.push_back(amortization);
redemptionLeg_.push_back(amortization);
}
}
boost::shared_ptr<CashFlow> redemption(new
Redemption(previousNotional, schedule_.dates().back()));
leg_.push_back(redemption);
redemptionLeg_.push_back(redemption);
boost::shared_ptr<IborCouponPricer>
fictitiousPricer(new
BlackIborCouponPricer(Handle<OptionletVolatilityStructure>()));
setCouponPricer(leg_,fictitiousPricer);
}
IborLeg::operator Leg() const {
Leg leg = FloatingLeg<IborIndex, IborCoupon, CappedFlooredIborCoupon>(
schedule_, notionals_, index_, paymentDayCounter_,
paymentAdjustment_, fixingDays_, gearings_, spreads_,
caps_, floors_, inArrears_, zeroPayments_);
if (caps_.empty() && floors_.empty() && !inArrears_) {
shared_ptr<IborCouponPricer> pricer(new BlackIborCouponPricer);
setCouponPricer(leg, pricer);
}
return leg;
}
MakeCms::operator boost::shared_ptr<Swap>() const {
Date startDate;
if (effectiveDate_ != Date())
startDate = effectiveDate_;
else {
Natural fixingDays = iborIndex_->fixingDays();
Date refDate = Settings::instance().evaluationDate();
// if the evaluation date is not a business day
// then move to the next business day
refDate = floatCalendar_.adjust(refDate);
Date spotDate = floatCalendar_.advance(refDate,
fixingDays*Days);
startDate = spotDate+forwardStart_;
}
Date terminationDate = startDate+swapTenor_;
Schedule cmsSchedule(startDate, terminationDate,
cmsTenor_, cmsCalendar_,
cmsConvention_,
cmsTerminationDateConvention_,
cmsRule_, cmsEndOfMonth_,
cmsFirstDate_, cmsNextToLastDate_);
Schedule floatSchedule(startDate, terminationDate,
floatTenor_, floatCalendar_,
floatConvention_,
floatTerminationDateConvention_,
floatRule_ , floatEndOfMonth_,
floatFirstDate_, floatNextToLastDate_);
Leg cmsLeg = CmsLeg(cmsSchedule, swapIndex_)
.withNotionals(nominal_)
.withPaymentDayCounter(cmsDayCount_)
.withPaymentAdjustment(cmsConvention_)
.withFixingDays(swapIndex_->fixingDays())
.withGearings(cmsGearing_)
.withSpreads(cmsSpread_)
.withCaps(cmsCap_)
.withFloors(cmsFloor_);
if (couponPricer_)
setCouponPricer(cmsLeg, couponPricer_);
Rate usedSpread = iborSpread_;
if (useAtmSpread_) {
QL_REQUIRE(!iborIndex_->forwardingTermStructure().empty(),
"null term structure set to this instance of " <<
iborIndex_->name());
QL_REQUIRE(!swapIndex_->forwardingTermStructure().empty(),
"null term structure set to this instance of " <<
swapIndex_->name());
QL_REQUIRE(couponPricer_,
"no CmsCouponPricer set (yet)");
Leg floatLeg = IborLeg(floatSchedule, iborIndex_)
.withNotionals(nominal_)
.withPaymentDayCounter(floatDayCount_)
.withPaymentAdjustment(floatConvention_)
.withFixingDays(iborIndex_->fixingDays());
Swap temp(cmsLeg, floatLeg);
temp.setPricingEngine(engine_);
Real npv = temp.legNPV(0)+temp.legNPV(1);
usedSpread = -npv/temp.legBPS(1)*1e-4;
} else {
QL_REQUIRE(usedSpread != Null<Spread>(),
"null spread set");
}
Leg floatLeg = IborLeg(floatSchedule, iborIndex_)
.withNotionals(nominal_)
.withPaymentDayCounter(floatDayCount_)
.withPaymentAdjustment(floatConvention_)
.withFixingDays(iborIndex_->fixingDays())
.withSpreads(usedSpread);
boost::shared_ptr<Swap> swap;
if (payCms_)
swap = boost::shared_ptr<Swap>(new Swap(cmsLeg, floatLeg));
else
swap = boost::shared_ptr<Swap>(new Swap(floatLeg, cmsLeg));
swap->setPricingEngine(engine_);
return swap;
}
