QuantLib_CappedFlooredCoupon man page

CappedFlooredCoupon — Capped and/or floored floating-rate coupon.  


#include <ql/cashflows/capflooredcoupon.hpp>

Inherits FloatingRateCoupon.

Inherited by CappedFlooredCmsCoupon, CappedFlooredCmsSpreadCoupon, and CappedFlooredIborCoupon.

Public Member Functions

CappedFlooredCoupon (const boost::shared_ptr< FloatingRateCoupon > &underlying, Rate cap=Null< Rate >(), Rate floor=Null< Rate >())
Rate cap () const
Rate floor () const
Rate effectiveCap () const
effective cap of fixing
Rate effectiveFloor () const
effective floor of fixing

Coupon interface

Rate rate () const
accrued rate
Rate convexityAdjustment () const
convexity adjustment

Observer interface

void update ()


boost::shared_ptr< FloatingRateCoupon > underlying_
bool isCapped_
bool isFloored_
Rate cap_
Rate floor_
virtual void accept (AcyclicVisitor &)
bool isCapped () const
bool isFloored () const
void setPricer (const boost::shared_ptr< FloatingRateCouponPricer > &pricer)
const boost::shared_ptr< FloatingRateCoupon > underlying ()

Additional Inherited Members

Detailed Description

Capped and/or floored floating-rate coupon.

The payoff $ P $ of a capped floating-rate coupon is: [ P = N imes T imes min(a L + b, C). ] The payoff of a floored floating-rate coupon is: [ P = N imes T imes max(a L + b, F). ] The payoff of a collared floating-rate coupon is: [ P = N imes T imes min(max(a L + b, F), C). ]

where $ N $ is the notional, $ T $ is the accrual time, $ L $ is the floating rate, $ a $ is its gearing, $ b $ is the spread, and $ C $ and $ F $ the strikes.

They can be decomposed in the following manner. Decomposition of a capped floating rate coupon: [ R = min(a L + b, C) = (a L + b) + min(C - b - xi |a| L, 0) ] where $ xi = sgn(a) $. Then: [ R = (a L + b) + |a| min(ac{C - b}{|a|} - xi L, 0) ]

Member Function Documentation

void update () [virtual]

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.


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Referenced By

The man pages cap(3), cap_(3), CappedFlooredCoupon(3), effectiveCap(3), effectiveFloor(3), floor_(3), isCapped(3), isCapped_(3), isFloored(3), isFloored_(3), ql-floor(3), setPricer(3) and underlying_(3) are aliases of QuantLib_CappedFlooredCoupon(3).

Mon Apr 30 2018 Version 1.12.1 QuantLib