Ejemplo n.º 1
0
        public FloatingRateBond(int settlementDays, double faceAmount, Schedule schedule, IborIndex index, DayCounter paymentDayCounter,
                                BusinessDayConvention paymentConvention, int fixingDays, List<double> gearings, List<double> spreads,
                                List<double> caps, List<double> floors, bool inArrears, double redemption, Date issueDate)
            : base(settlementDays, schedule.calendar(), issueDate) {
            maturityDate_ = schedule.endDate();
            cashflows_ = new IborLeg(schedule, index)
                            .withPaymentDayCounter(paymentDayCounter)
                            .withFixingDays(fixingDays)
                            .withGearings(gearings)
                            .withSpreads(spreads)
                            .withCaps(caps)
                            .withFloors(floors)
                            .inArrears(inArrears)
                            .withNotionals(faceAmount)
                            .withPaymentAdjustment(paymentConvention);

            addRedemptionsToCashflows(new List<double>() { redemption });

            if (cashflows().Count == 0)
                throw new ApplicationException("bond with no cashflows!");
            if (redemptions_.Count != 1)
                throw new ApplicationException("multiple redemptions created");

            index.registerWith(update);
        }
      public BasisSwap(Type type, double nominal,
                         Schedule float1Schedule, IborIndex iborIndex1, double spread1, DayCounter float1DayCount,
                         Schedule float2Schedule, IborIndex iborIndex2, double spread2, DayCounter float2DayCount,
                         BusinessDayConvention? paymentConvention) :
         base(2)
      {
         type_ = type;
         nominal_ = nominal;
         floating1Schedule_ = float1Schedule;
         spread1_ = spread1;
         floating1DayCount_ = float1DayCount;
         iborIndex1_ = iborIndex1;
         floating2Schedule_ = float2Schedule;
         spread2_ = spread2;
         floating2DayCount_ = float2DayCount;
         iborIndex2_ = iborIndex2;

         if (paymentConvention.HasValue)
            paymentConvention_ = paymentConvention.Value;
         else
            paymentConvention_ = floating1Schedule_.businessDayConvention();

         List<CashFlow> floating1Leg = new IborLeg(float1Schedule, iborIndex1)
                                     .withPaymentDayCounter(float1DayCount)
                                     .withSpreads(spread1)
                                     .withNotionals(nominal)
                                     .withPaymentAdjustment(paymentConvention_);

         List<CashFlow> floating2Leg = new IborLeg(float2Schedule, iborIndex2)
                                     .withPaymentDayCounter(float2DayCount)
                                     .withSpreads(spread2)
                                     .withNotionals(nominal)
                                     .withPaymentAdjustment(paymentConvention_);

         foreach (var cf in floating1Leg)
            cf.registerWith(update);
         foreach (var cf in floating2Leg)
            cf.registerWith(update);


         legs_[0] = floating1Leg;
         legs_[1] = floating2Leg;
         if (type_ == Type.Payer)
         {
            payer_[0] = -1;
            payer_[1] = +1;
         }
         else
         {
            payer_[0] = +1;
            payer_[1] = -1;
         }
      }
Ejemplo n.º 3
0
        public FloatingLoan(Type type, double nominal,
            Schedule floatingSchedule, double floatingSpread, DayCounter floatingDayCount,
            Schedule principalSchedule, BusinessDayConvention? paymentConvention, IborIndex index)
            : base(2)
        {
            type_ = type;
            nominal_ = nominal;
            floatingSchedule_ = floatingSchedule;
            floatingSpread_ = floatingSpread;
            floatingDayCount_ = floatingDayCount;
            principalSchedule_ = principalSchedule;
            iborIndex_ = index;

            if (paymentConvention.HasValue)
                paymentConvention_ = paymentConvention.Value;
            else
                paymentConvention_ = floatingSchedule_.businessDayConvention();

            List<CashFlow> principalLeg = new PricipalLeg(principalSchedule, floatingDayCount)
                .withNotionals(nominal)
                .withPaymentAdjustment(paymentConvention_)
                .withSign(type == Type.Loan ? -1 : 1);

            // temporary
            for (int i = 0; i < principalLeg.Count - 1; i++)
            {
                Principal p = (Principal)principalLeg[i];
                notionals_.Add(p.nominal());
            }

            List<CashFlow> floatingLeg = new IborLeg(floatingSchedule, iborIndex_)
                .withPaymentDayCounter(floatingDayCount_)
                .withSpreads(floatingSpread_)
                .withPaymentAdjustment(paymentConvention_)
                .withNotionals(notionals_);

            legs_[0] = floatingLeg;
            legs_[1] = principalLeg;
            if (type_ == Type.Loan)
            {
                payer_[0] = -1;
                payer_[1] = +1;
            }
            else
            {
                payer_[0] = +1;
                payer_[1] = -1;
            }
        }
Ejemplo n.º 4
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      public AmortizingFloatingRateBond(int settlementDays,
                                        List<double> notionals,
                                        Schedule schedule,
                                        IborIndex index,
                                        DayCounter accrualDayCounter,
                                        BusinessDayConvention paymentConvention = BusinessDayConvention.Following,
                                        int fixingDays = 0,
                                        List<double> gearings = null,
                                        List<double> spreads = null,
                                        List<double> caps = null,
                                        List<double> floors = null,
                                        bool inArrears = false,
                                        Date issueDate = null)
         :base(settlementDays, schedule.calendar(), issueDate)
      {
         if ( gearings == null ) 
            gearings = new List<double>() {1, 1.0};

         if (spreads == null)
            spreads = new List<double>() { 1, 0.0 };

         if (caps == null)
            caps = new List<double>() ;

         if (floors == null)
            floors = new List<double>();

         maturityDate_ = schedule.endDate();


         cashflows_ = new IborLeg(schedule, index)
                         .withCaps(caps)
                         .withFloors(floors)
                         .inArrears(inArrears)
                         .withSpreads(spreads)
                         .withGearings(gearings)
                         .withFixingDays(fixingDays)
                         .withPaymentDayCounter(accrualDayCounter)
                         .withPaymentAdjustment(paymentConvention)
                         .withNotionals(notionals).value();

         addRedemptionsToCashflows();

         Utils.QL_REQUIRE( !cashflows().empty(), () => "bond with no cashflows!" );

         index.registerWith(update);

      }
Ejemplo n.º 5
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        public BMASwap(Type type, double nominal,
                // Libor leg
                Schedule liborSchedule, double liborFraction, double liborSpread, IborIndex liborIndex, DayCounter liborDayCount,
                // BMA leg
                Schedule bmaSchedule, BMAIndex bmaIndex, DayCounter bmaDayCount)
            : base(2)
        {
            type_ = type;
            nominal_ = nominal;
            liborFraction_ = liborFraction;
            liborSpread_ = liborSpread;

            BusinessDayConvention convention = liborSchedule.businessDayConvention();

            legs_[0] = new IborLeg(liborSchedule, liborIndex)
                        .withPaymentDayCounter(liborDayCount)
                        .withFixingDays(liborIndex.fixingDays())
                        .withGearings(liborFraction)
                        .withSpreads(liborSpread)
                        .withNotionals(nominal)
                        .withPaymentAdjustment(convention);

            legs_[1] = new AverageBMALeg(bmaSchedule, bmaIndex)
                        .withPaymentDayCounter(bmaDayCount)
                        .withNotionals(nominal)
                        .withPaymentAdjustment(bmaSchedule.businessDayConvention());

            for (int j=0; j<2; ++j) {
                for (int i=0; i<legs_[j].Count; i++)
                    legs_[j][i].registerWith(update);
            }

            switch (type_) {
                case Type.Payer:
                    payer_[0] = +1.0;
                    payer_[1] = -1.0;
                    break;
                case Type.Receiver:
                    payer_[0] = -1.0;
                    payer_[1] = +1.0;
                    break;
                default:
                    throw new ApplicationException("Unknown BMA-swap type");
            }
        }
Ejemplo n.º 6
0
        public void testNullFixingDays()
        {
            // Testing ibor leg construction with null fixing days...
            Date today = Settings.evaluationDate();
            Schedule schedule = new
                MakeSchedule()
                .from(today-new Period(2,TimeUnit.Months)).to(today+new Period(4,TimeUnit.Months))
                .withFrequency(Frequency.Semiannual)
                .withCalendar(new TARGET())
                .withConvention(BusinessDayConvention.Following)
                .backwards().value();

            IborIndex index = new USDLibor(new Period(6,TimeUnit.Months));
            List<CashFlow> leg = new IborLeg( schedule, index )
                // this can happen with default values, and caused an
                // exception when the null was not managed properly
                .withFixingDays( null )
                .withNotionals( 100.0 );
        }
Ejemplo n.º 7
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        //public FloatingRateBond(int settlementDays, double faceAmount, Date startDate, Date maturityDate, Frequency couponFrequency,
        //                        Calendar calendar, IborIndex index, DayCounter accrualDayCounter,
        //                        BusinessDayConvention accrualConvention = Following,
        //                        BusinessDayConvention paymentConvention = Following,
        //                        int fixingDays = Null<Natural>(),
        //                        List<double> gearings = std::vector<Real>(1, 1.0),
        //                        List<double> spreads = std::vector<Spread>(1, 0.0),
        //                        List<double> caps = std::vector<Rate>(),
        //                        List<double> floors = std::vector<Rate>(),
        //                        bool inArrears = false,
        //                        double redemption = 100.0,
        //                        Date issueDate = Date(),
        //                        Date stubDate = Date(),
        //                        DateGeneration.Rule rule = DateGeneration::Backward,
        //                        bool endOfMonth = false)
        public FloatingRateBond(int settlementDays, double faceAmount, Date startDate, Date maturityDate, Frequency couponFrequency,
                                Calendar calendar, IborIndex index, DayCounter accrualDayCounter,
                                BusinessDayConvention accrualConvention, BusinessDayConvention paymentConvention,
                                int fixingDays, List<double> gearings, List<double> spreads, List<double> caps,
                                List<double> floors, bool inArrears, double redemption, Date issueDate,
                                Date stubDate, DateGeneration.Rule rule, bool endOfMonth)
            : base(settlementDays, calendar, issueDate) {

            maturityDate_ = maturityDate;

            Date firstDate, nextToLastDate;
            switch (rule) {
                case DateGeneration.Rule.Backward:
                    firstDate = null;
                    nextToLastDate = stubDate;
                    break;
                case DateGeneration.Rule.Forward:
                    firstDate = stubDate;
                    nextToLastDate = null;
                    break;
              case DateGeneration.Rule.Zero:
              case DateGeneration.Rule.ThirdWednesday:
              case DateGeneration.Rule.Twentieth:
              case DateGeneration.Rule.TwentiethIMM:
                    throw new ApplicationException("stub date (" + stubDate + ") not allowed with " + rule + " DateGeneration::Rule");
                default:
                    throw new ApplicationException("unknown DateGeneration::Rule (" + rule + ")");
            }

            Schedule schedule = new Schedule(startDate, maturityDate_, new Period(couponFrequency), calendar_,
                                             accrualConvention, accrualConvention, rule, endOfMonth, firstDate, nextToLastDate);

            cashflows_ = new IborLeg(schedule, index)
                            .withPaymentDayCounter(accrualDayCounter)
                            .withFixingDays(fixingDays)
                            .withGearings(gearings)
                            .withSpreads(spreads)
                            .withCaps(caps)
                            .withFloors(floors)
                            .inArrears(inArrears)
                            .withNotionals(faceAmount)
                            .withPaymentAdjustment(paymentConvention);

            addRedemptionsToCashflows(new List<double>() { redemption });

            if (cashflows().Count == 0)
                throw new ApplicationException("bond with no cashflows!");
            if (redemptions_.Count != 1)
                throw new ApplicationException("multiple redemptions created");

            index.registerWith(update);
        }
Ejemplo n.º 8
0
        public AssetSwap(bool parAssetSwap,
                         Bond bond,
                         double bondCleanPrice,
                         double nonParRepayment,
                         double gearing,
                         IborIndex iborIndex,
                         double spread = 0.0,
                         DayCounter floatingDayCount = null,
                         Date dealMaturity           = null,
                         bool payBondCoupon          = false)
            : base(2)
        {
            bond_            = bond;
            bondCleanPrice_  = bondCleanPrice;
            nonParRepayment_ = nonParRepayment;
            spread_          = spread;
            parSwap_         = parAssetSwap;

            Schedule tempSch = new Schedule(bond_.settlementDate(),
                                            bond_.maturityDate(),
                                            iborIndex.tenor(),
                                            iborIndex.fixingCalendar(),
                                            iborIndex.businessDayConvention(),
                                            iborIndex.businessDayConvention(),
                                            DateGeneration.Rule.Backward,
                                            false); // endOfMonth

            if (dealMaturity == null)
            {
                dealMaturity = bond_.maturityDate();
            }

            Utils.QL_REQUIRE(dealMaturity <= tempSch.dates().Last(), () =>
                             "deal maturity " + dealMaturity +
                             " cannot be later than (adjusted) bond maturity " +
                             tempSch.dates().Last());
            Utils.QL_REQUIRE(dealMaturity > tempSch.dates()[0], () =>
                             "deal maturity " + dealMaturity +
                             " must be later than swap start date " +
                             tempSch.dates()[0]);

            // the following might become an input parameter
            BusinessDayConvention paymentAdjustment = BusinessDayConvention.Following;

            Date     finalDate = tempSch.calendar().adjust(dealMaturity, paymentAdjustment);
            Schedule schedule  = tempSch.until(finalDate);

            // bondCleanPrice must be the (forward) clean price
            // at the floating schedule start date
            upfrontDate_ = schedule.startDate();
            double dirtyPrice = bondCleanPrice_ +
                                bond_.accruedAmount(upfrontDate_);

            double notional = bond_.notional(upfrontDate_);

            /* In the market asset swap, the bond is purchased in return for
             * payment of the full price. The notional of the floating leg is
             * then scaled by the full price. */
            if (!parSwap_)
            {
                notional *= dirtyPrice / 100.0;
            }

            if (floatingDayCount == null)
            {
                legs_[1] = new IborLeg(schedule, iborIndex)
                           .withSpreads(spread)
                           .withGearings(gearing)
                           .withNotionals(notional)
                           .withPaymentAdjustment(paymentAdjustment);
            }
            else
            {
                legs_[1] = new IborLeg(schedule, iborIndex)
                           .withSpreads(spread)
                           .withGearings(gearing)
                           .withPaymentDayCounter(floatingDayCount)
                           .withNotionals(notional)
                           .withPaymentAdjustment(paymentAdjustment);
            }

            foreach (CashFlow c in legs_[1])
            {
                c.registerWith(update);
            }


            List <CashFlow> bondLeg = bond_.cashflows();
            // skip bond redemption
            int i;

            for (i = 0; i < bondLeg.Count && bondLeg[i].date() <= dealMaturity; ++i)
            {
                // whatever might be the choice for the discounting engine
                // bond flows on upfrontDate_ must be discarded
                bool upfrontDateBondFlows = false;
                if (!bondLeg[i].hasOccurred(upfrontDate_, upfrontDateBondFlows))
                {
                    legs_[0].Add(bondLeg[i]);
                }
            }
            // if the first skipped cashflow is not the redemption
            // and it is a coupon then add the accrued coupon
            if (i < bondLeg.Count - 1)
            {
                Coupon c = bondLeg[i] as Coupon;
                if (c != null)
                {
                    CashFlow accruedCoupon = new SimpleCashFlow(c.accruedAmount(dealMaturity), finalDate);
                    legs_[0].Add(accruedCoupon);
                }
            }
            // add the nonParRepayment_
            CashFlow nonParRepaymentFlow = new SimpleCashFlow(nonParRepayment_, finalDate);

            legs_[0].Add(nonParRepaymentFlow);

            Utils.QL_REQUIRE(!legs_[0].empty(), () => "empty bond leg to start with");

            // special flows
            if (parSwap_)
            {
                // upfront on the floating leg
                double   upfront         = (dirtyPrice - 100.0) / 100.0 * notional;
                CashFlow upfrontCashFlow = new SimpleCashFlow(upfront, upfrontDate_);
                legs_[1].Insert(0, upfrontCashFlow);
                // backpayment on the floating leg
                // (accounts for non-par redemption, if any)
                double   backPayment         = notional;
                CashFlow backPaymentCashFlow = new SimpleCashFlow(backPayment, finalDate);
                legs_[1].Add(backPaymentCashFlow);
            }
            else
            {
                // final notional exchange
                CashFlow finalCashFlow = new SimpleCashFlow(notional, finalDate);
                legs_[1].Add(finalCashFlow);
            }

            Utils.QL_REQUIRE(!legs_[0].empty(), () => "empty bond leg");

            foreach (CashFlow c in legs_[0])
            {
                c.registerWith(update);
            }

            if (payBondCoupon)
            {
                payer_[0] = -1.0;
                payer_[1] = +1.0;
            }
            else
            {
                payer_[0] = +1.0;
                payer_[1] = -1.0;
            }
        }
Ejemplo n.º 9
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        // constructor
        public VanillaSwap(Type type, double nominal,
                         Schedule fixedSchedule, double fixedRate, DayCounter fixedDayCount,
                         Schedule floatSchedule, IborIndex iborIndex, double spread, DayCounter floatingDayCount,
                         BusinessDayConvention? paymentConvention = null)
            : base(2)
        {
            type_ = type;
             nominal_ = nominal;
             fixedSchedule_ = fixedSchedule;
             fixedRate_ = fixedRate;
             fixedDayCount_ = fixedDayCount;
             floatingSchedule_ = floatSchedule;
             iborIndex_ = iborIndex;
             spread_ = spread;
             floatingDayCount_ = floatingDayCount;

             if (paymentConvention.HasValue)
            paymentConvention_ = paymentConvention.Value;
             else
            paymentConvention_ = floatingSchedule_.businessDayConvention();

             legs_[0] = new FixedRateLeg(fixedSchedule)
                                     .withCouponRates(fixedRate, fixedDayCount)
                                     .withPaymentAdjustment(paymentConvention_)
                                     .withNotionals(nominal);

             legs_[1] = new IborLeg(floatSchedule, iborIndex)
                                     .withPaymentDayCounter(floatingDayCount)
            //.withFixingDays(iborIndex.fixingDays())
                                     .withSpreads(spread)
                                     .withNotionals(nominal)
                                     .withPaymentAdjustment(paymentConvention_);

             foreach (var cf in legs_[1])
            cf.registerWith(update);

             switch (type_)
             {
            case Type.Payer:
               payer_[0] = -1.0;
               payer_[1] = +1.0;
               break;
            case Type.Receiver:
               payer_[0] = +1.0;
               payer_[1] = -1.0;
               break;
            default:
               throw new ApplicationException("Unknown vanilla-swap type");
             }
        }
Ejemplo n.º 10
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        protected override void performCalculations()
        {
            Period indexTenor = index_.tenor();
            double fixedRate = 0.04; // dummy value
            Date startDate, maturity;
            if ( includeFirstSwaplet_ )
            {
                startDate = termStructure_.link.referenceDate();
                maturity = termStructure_.link.referenceDate() + length_;
            }
            else
            {
                startDate = termStructure_.link.referenceDate() + indexTenor;
                maturity = termStructure_.link.referenceDate() + length_;
            }
            IborIndex dummyIndex = new IborIndex( "dummy",
                             indexTenor,
                             index_.fixingDays(),
                             index_.currency(),
                             index_.fixingCalendar(),
                             index_.businessDayConvention(),
                             index_.endOfMonth(),
                             termStructure_.link.dayCounter(),
                             termStructure_ );

            InitializedList<double> nominals = new InitializedList<double>( 1, 1.0 );

            Schedule floatSchedule = new Schedule( startDate, maturity,
                                          index_.tenor(), index_.fixingCalendar(),
                                          index_.businessDayConvention(),
                                          index_.businessDayConvention(),
                                          DateGeneration.Rule.Forward, false );
            List<CashFlow> floatingLeg = new IborLeg( floatSchedule, index_ )
                 .withFixingDays( 0 )
                 .withNotionals( nominals )
                 .withPaymentAdjustment( index_.businessDayConvention() );

            Schedule fixedSchedule = new Schedule( startDate, maturity, new Period( fixedLegFrequency_ ),
                                          index_.fixingCalendar(),
                                          BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                          DateGeneration.Rule.Forward, false );
            List<CashFlow> fixedLeg = new FixedRateLeg( fixedSchedule )
                 .withCouponRates( fixedRate, fixedLegDayCounter_ )
                 .withNotionals( nominals )
                 .withPaymentAdjustment( index_.businessDayConvention() );

            Swap swap = new Swap( floatingLeg, fixedLeg );
            swap.setPricingEngine( new DiscountingSwapEngine( termStructure_, false ) );
            double fairRate = fixedRate - (double)(swap.NPV() / ( swap.legBPS( 1 ) / 1.0e-4 ));
            cap_ = new Cap( floatingLeg, new InitializedList<double>( 1, fairRate ) );

            base.performCalculations();
        }
Ejemplo n.º 11
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        public AssetSwap(bool payBondCoupon,
                       Bond bond,
                       double bondCleanPrice,
                       IborIndex iborIndex,
                       double spread,
                       Schedule floatSchedule = null,
                       DayCounter floatingDayCount = null,
                       bool parAssetSwap = true)
            : base(2)
        {
            bond_ = bond;
             bondCleanPrice_ = bondCleanPrice;
             nonParRepayment_ = 100;
             spread_ = spread;
             parSwap_ = parAssetSwap;

             Schedule schedule = floatSchedule;
             if (floatSchedule == null)
            schedule = new Schedule(bond_.settlementDate(),
                                    bond_.maturityDate(),
                                    iborIndex.tenor(),
                                    iborIndex.fixingCalendar(),
                                    iborIndex.businessDayConvention(),
                                    iborIndex.businessDayConvention(),
                                    DateGeneration.Rule.Backward,
                                    false); // endOfMonth

             // the following might become an input parameter
             BusinessDayConvention paymentAdjustment = BusinessDayConvention.Following;

             Date finalDate = schedule.calendar().adjust(schedule.endDate(), paymentAdjustment);
             Date adjBondMaturityDate = schedule.calendar().adjust(bond_.maturityDate(), paymentAdjustment);

             Utils.QL_REQUIRE( finalDate == adjBondMaturityDate, () =>
                          "adjusted schedule end date (" +
                          finalDate +
                          ") must be equal to adjusted bond maturity date (" +
                          adjBondMaturityDate + ")");

             // bondCleanPrice must be the (forward) clean price
             // at the floating schedule start date
             upfrontDate_ = schedule.startDate();
             double dirtyPrice = bondCleanPrice_ +
                             bond_.accruedAmount(upfrontDate_);

             double notional = bond_.notional(upfrontDate_);
             /* In the market asset swap, the bond is purchased in return for
            payment of the full price. The notional of the floating leg is
            then scaled by the full price. */
             if (!parSwap_)
            notional *= dirtyPrice / 100.0;

             if (floatingDayCount == null)
            legs_[1] = new IborLeg(schedule, iborIndex)
                .withSpreads(spread)
                .withNotionals(notional)
                .withPaymentAdjustment(paymentAdjustment);
             else
            legs_[1] = new IborLeg(schedule, iborIndex)
                .withSpreads(spread)
                .withPaymentDayCounter(floatingDayCount)
                .withNotionals(notional)
                .withPaymentAdjustment(paymentAdjustment);

             foreach (CashFlow c in legs_[1])
            c.registerWith(update);

             List<CashFlow> bondLeg = bond_.cashflows();
             foreach (CashFlow c in bondLeg)
             {
            // whatever might be the choice for the discounting engine
            // bond flows on upfrontDate_ must be discarded
            bool upfrontDateBondFlows = false;
            if (!(c.hasOccurred(upfrontDate_, upfrontDateBondFlows)))
               legs_[0].Add(c);
             }

             Utils.QL_REQUIRE( !legs_[0].empty(), () => "empty bond leg to start with" );

             // special flows
             if (parSwap_)
             {
            // upfront on the floating leg
            double upfront = (dirtyPrice - 100.0) / 100.0 * notional;
            CashFlow upfrontCashFlow = new SimpleCashFlow(upfront, upfrontDate_);
            legs_[1].Insert(0, upfrontCashFlow);
            // backpayment on the floating leg
            // (accounts for non-par redemption, if any)
            double backPayment = notional;
            CashFlow backPaymentCashFlow = new SimpleCashFlow(backPayment, finalDate);
            legs_[1].Add(backPaymentCashFlow);
             }
             else
             {
            // final notional exchange
            CashFlow finalCashFlow = new SimpleCashFlow(notional, finalDate);
            legs_[1].Add(finalCashFlow);
             }

             Utils.QL_REQUIRE( !legs_[0].empty(), () => "empty bond leg" );

             foreach (CashFlow c in legs_[0])
            c.registerWith(update);

             if (payBondCoupon)
             {
            payer_[0] = -1.0;
            payer_[1] = +1.0;
             }
             else
             {
            payer_[0] = +1.0;
            payer_[1] = -1.0;
             }
        }
Ejemplo n.º 12
0
        public BasisSwap(Type type, double nominal,
                         Schedule float1Schedule, IborIndex iborIndex1, double spread1, DayCounter float1DayCount,
                         Schedule float2Schedule, IborIndex iborIndex2, double spread2, DayCounter float2DayCount,
                         BusinessDayConvention?paymentConvention) :
            base(2)
        {
            type_              = type;
            nominal_           = nominal;
            floating1Schedule_ = float1Schedule;
            spread1_           = spread1;
            floating1DayCount_ = float1DayCount;
            iborIndex1_        = iborIndex1;
            floating2Schedule_ = float2Schedule;
            spread2_           = spread2;
            floating2DayCount_ = float2DayCount;
            iborIndex2_        = iborIndex2;

            if (paymentConvention.HasValue)
            {
                paymentConvention_ = paymentConvention.Value;
            }
            else
            {
                paymentConvention_ = floating1Schedule_.businessDayConvention();
            }

            List <CashFlow> floating1Leg = new IborLeg(float1Schedule, iborIndex1)
                                           .withPaymentDayCounter(float1DayCount)
                                           .withSpreads(spread1)
                                           .withNotionals(nominal)
                                           .withPaymentAdjustment(paymentConvention_);

            List <CashFlow> floating2Leg = new IborLeg(float2Schedule, iborIndex2)
                                           .withPaymentDayCounter(float2DayCount)
                                           .withSpreads(spread2)
                                           .withNotionals(nominal)
                                           .withPaymentAdjustment(paymentConvention_);

            foreach (var cf in floating1Leg)
            {
                cf.registerWith(update);
            }
            foreach (var cf in floating2Leg)
            {
                cf.registerWith(update);
            }


            legs_[0] = floating1Leg;
            legs_[1] = floating2Leg;
            if (type_ == Type.Payer)
            {
                payer_[0] = -1;
                payer_[1] = +1;
            }
            else
            {
                payer_[0] = +1;
                payer_[1] = -1;
            }
        }
Ejemplo n.º 13
0
        public void testZSpreadWithGenericBond()
        {
            // Testing clean and dirty price with null Z-spread against theoretical prices...

             CommonVars vars = new CommonVars();

             Calendar bondCalendar = new TARGET();
             int settlementDays = 3;
             int fixingDays = 2;
             bool inArrears = false;

             // Fixed Underlying bond (Isin: DE0001135275 DBR 4 01/04/37)
             // maturity doesn't occur on a business day

             Date fixedBondStartDate1 = new Date(4,Month.January,2005);
             Date fixedBondMaturityDate1 = new Date(4,Month.January,2037);
             Schedule fixedBondSchedule1= new Schedule(fixedBondStartDate1,
                                    fixedBondMaturityDate1,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg1 = new FixedRateLeg(fixedBondSchedule1)
            .withCouponRates(0.04, new ActualActual(ActualActual.Convention.ISDA))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption1 = bondCalendar.adjust(fixedBondMaturityDate1,
                                                         BusinessDayConvention.Following);
             fixedBondLeg1.Add(new SimpleCashFlow(100.0, fixedbondRedemption1));
             Bond fixedBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount, fixedBondMaturityDate1, fixedBondStartDate1,
                  fixedBondLeg1);
             IPricingEngine bondEngine = new DiscountingBondEngine(vars.termStructure);
             fixedBond1.setPricingEngine(bondEngine);

             double fixedBondImpliedValue1 = fixedBond1.cleanPrice();
             Date fixedBondSettlementDate1= fixedBond1.settlementDate();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve
             double fixedBondCleanPrice1 = BondFunctions.cleanPrice(fixedBond1, vars.termStructure, vars.spread,
            new Actual365Fixed(), vars.compounding, Frequency.Annual, fixedBondSettlementDate1);
             double tolerance = 1.0e-13;
             double error1 = Math.Abs(fixedBondImpliedValue1-fixedBondCleanPrice1);
             if (error1>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  market asset swap spread: "
                        + fixedBondImpliedValue1
                        + "\n  par asset swap spread: " + fixedBondCleanPrice1
                        + "\n  error:                 " + error1
                        + "\n  tolerance:             " + tolerance);
             }

             // Fixed Underlying bond (Isin: IT0006527060 IBRD 5 02/05/19)
             // maturity occurs on a business day

             Date fixedBondStartDate2 = new Date(5,Month.February,2005);
             Date fixedBondMaturityDate2 = new Date(5,Month.February,2019);
             Schedule fixedBondSchedule2= new Schedule(fixedBondStartDate2,
                                    fixedBondMaturityDate2,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg2 = new FixedRateLeg(fixedBondSchedule2)
            .withCouponRates(0.05, new Thirty360(Thirty360.Thirty360Convention.BondBasis))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption2 = bondCalendar.adjust(fixedBondMaturityDate2, BusinessDayConvention.Following);
             fixedBondLeg2.Add(new SimpleCashFlow(100.0, fixedbondRedemption2));
             Bond fixedBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  fixedBondMaturityDate2, fixedBondStartDate2, fixedBondLeg2);
             fixedBond2.setPricingEngine(bondEngine);

             double fixedBondImpliedValue2 = fixedBond2.cleanPrice();
             Date fixedBondSettlementDate2= fixedBond2.settlementDate();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve

             double fixedBondCleanPrice2 = BondFunctions.cleanPrice(fixedBond2, vars.termStructure, vars.spread,
            new Actual365Fixed(), vars.compounding, Frequency.Annual, fixedBondSettlementDate2);
             double error3 = Math.Abs(fixedBondImpliedValue2-fixedBondCleanPrice2);
             if (error3>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  market asset swap spread: "
                        + fixedBondImpliedValue2
                        + "\n  par asset swap spread: " + fixedBondCleanPrice2
                        + "\n  error:                 " + error3
                        + "\n  tolerance:             " + tolerance);
             }

             // FRN Underlying bond (Isin: IT0003543847 ISPIM 0 09/29/13)
             // maturity doesn't occur on a business day

             Date floatingBondStartDate1 = new Date(29,Month.September,2003);
             Date floatingBondMaturityDate1 = new Date(29,Month.September,2013);
             Schedule floatingBondSchedule1= new Schedule(floatingBondStartDate1,
                                       floatingBondMaturityDate1,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg1 = new IborLeg(floatingBondSchedule1, vars.iborIndex)
            .withPaymentDayCounter(new Actual360())
            .withFixingDays(fixingDays)
            .withSpreads(0.0056)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date floatingbondRedemption1 =
            bondCalendar.adjust(floatingBondMaturityDate1, BusinessDayConvention.Following);
             floatingBondLeg1.Add(new SimpleCashFlow(100.0, floatingbondRedemption1));
             Bond floatingBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  floatingBondMaturityDate1, floatingBondStartDate1,
                  floatingBondLeg1);
             floatingBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond1.cashflows(), vars.pricer);
             vars.iborIndex.addFixing(new Date(27,Month.March,2007), 0.0402);
             double floatingBondImpliedValue1 = floatingBond1.cleanPrice();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve
             double floatingBondCleanPrice1 = BondFunctions.cleanPrice(floatingBond1, vars.termStructure, vars.spread,
            new Actual365Fixed(), vars.compounding, Frequency.Semiannual, fixedBondSettlementDate1);
             double error5 = Math.Abs(floatingBondImpliedValue1-floatingBondCleanPrice1);
             if (error5>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  market asset swap spread: " +
                        floatingBondImpliedValue1
                        + "\n  par asset swap spread: " + floatingBondCleanPrice1
                        + "\n  error:                 " + error5
                        + "\n  tolerance:             " + tolerance);
             }

             // FRN Underlying bond (Isin: XS0090566539 COE 0 09/24/18)
             // maturity occurs on a business day

             Date floatingBondStartDate2 = new Date(24,Month.September,2004);
             Date floatingBondMaturityDate2 = new Date(24,Month.September,2018);
             Schedule floatingBondSchedule2 = new Schedule(floatingBondStartDate2,
                                       floatingBondMaturityDate2,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.ModifiedFollowing, BusinessDayConvention.ModifiedFollowing,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg2 = new IborLeg(floatingBondSchedule2, vars.iborIndex)
            .withFixingDays(fixingDays)
            .withSpreads(0.0025)
            .withPaymentDayCounter(new Actual360())
            .inArrears(inArrears)
            .withPaymentAdjustment(BusinessDayConvention.ModifiedFollowing)
            .withNotionals(vars.faceAmount);
             Date floatingbondRedemption2 = bondCalendar.adjust(floatingBondMaturityDate2, BusinessDayConvention.ModifiedFollowing);
             floatingBondLeg2.Add(new SimpleCashFlow(100.0, floatingbondRedemption2));
             Bond floatingBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount, floatingBondMaturityDate2,
            floatingBondStartDate2, floatingBondLeg2);
             floatingBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond2.cashflows(), vars.pricer);
             vars.iborIndex.addFixing(new Date(22,Month.March,2007), 0.04013);
             double floatingBondImpliedValue2 = floatingBond2.cleanPrice();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve
             double floatingBondCleanPrice2 = BondFunctions.cleanPrice(floatingBond2, vars.termStructure, vars.spread,
            new Actual365Fixed(), vars.compounding, Frequency.Semiannual,  fixedBondSettlementDate1);
             double error7 = Math.Abs(floatingBondImpliedValue2-floatingBondCleanPrice2);
             if (error7>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  market asset swap spread: " +
                        floatingBondImpliedValue2
                        + "\n  par asset swap spread: " + floatingBondCleanPrice2
                        + "\n  error:                 " + error7
                        + "\n  tolerance:             " + tolerance);
             }

             // CMS Underlying bond (Isin: XS0228052402 CRDIT 0 8/22/20)
             // maturity doesn't occur on a business day

             Date cmsBondStartDate1 = new Date(22,Month.August,2005);
             Date cmsBondMaturityDate1 = new Date(22,Month.August,2020);
             Schedule cmsBondSchedule1= new Schedule(cmsBondStartDate1,
                                 cmsBondMaturityDate1,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg1 = new CmsLeg(cmsBondSchedule1, vars.swapIndex)
            .withPaymentDayCounter(new Thirty360())
            .withFixingDays(fixingDays)
            .withCaps(0.055)
            .withFloors(0.025)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption1 = bondCalendar.adjust(cmsBondMaturityDate1, BusinessDayConvention.Following);
             cmsBondLeg1.Add(new SimpleCashFlow(100.0, cmsbondRedemption1));
             Bond cmsBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount, cmsBondMaturityDate1, cmsBondStartDate1,
            cmsBondLeg1);
             cmsBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond1.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(18,Month.August,2006), 0.04158);
             double cmsBondImpliedValue1 = cmsBond1.cleanPrice();
             Date cmsBondSettlementDate1= cmsBond1.settlementDate();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve
             double cmsBondCleanPrice1 = BondFunctions.cleanPrice(cmsBond1, vars.termStructure, vars.spread,
            new Actual365Fixed(), vars.compounding, Frequency.Annual,
            cmsBondSettlementDate1);
             double error9 = Math.Abs(cmsBondImpliedValue1-cmsBondCleanPrice1);
             if (error9>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  market asset swap spread: " + cmsBondImpliedValue1
                        + "\n  par asset swap spread: " + cmsBondCleanPrice1
                        + "\n  error:                 " + error9
                        + "\n  tolerance:             " + tolerance);
             }

             // CMS Underlying bond (Isin: XS0218766664 ISPIM 0 5/6/15)
             // maturity occurs on a business day

             Date cmsBondStartDate2 = new Date(06,Month.May,2005);
             Date cmsBondMaturityDate2 = new Date(06,Month.May,2015);
             Schedule cmsBondSchedule2= new Schedule(cmsBondStartDate2,
                                 cmsBondMaturityDate2,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg2 = new CmsLeg(cmsBondSchedule2, vars.swapIndex)
            .withPaymentDayCounter(new Thirty360())
            .withFixingDays(fixingDays)
            .withGearings(0.84)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption2 = bondCalendar.adjust(cmsBondMaturityDate2,  BusinessDayConvention.Following);
             cmsBondLeg2.Add(new SimpleCashFlow(100.0, cmsbondRedemption2));
             Bond cmsBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  cmsBondMaturityDate2, cmsBondStartDate2, cmsBondLeg2);
             cmsBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond2.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(04,Month.May,2006), 0.04217);
             double cmsBondImpliedValue2 = cmsBond2.cleanPrice();
             Date cmsBondSettlementDate2= cmsBond2.settlementDate();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve
             double cmsBondCleanPrice2 = BondFunctions.cleanPrice(cmsBond2, vars.termStructure, vars.spread,
            new Actual365Fixed(), vars.compounding, Frequency.Annual,
            cmsBondSettlementDate2);
             double error11 = Math.Abs(cmsBondImpliedValue2-cmsBondCleanPrice2);
             if (error11>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  market asset swap spread: " + cmsBondImpliedValue2
                        + "\n  par asset swap spread: " + cmsBondCleanPrice2
                        + "\n  error:                 " + error11
                        + "\n  tolerance:             " + tolerance);
             }

             // Zero Coupon bond (Isin: DE0004771662 IBRD 0 12/20/15)
             // maturity doesn't occur on a business day

             Date zeroCpnBondStartDate1 = new Date(19,Month.December,1985);
             Date zeroCpnBondMaturityDate1 = new Date(20,Month.December,2015);
             Date zeroCpnBondRedemption1 = bondCalendar.adjust(zeroCpnBondMaturityDate1,
                                                         BusinessDayConvention.Following);
             List<CashFlow> zeroCpnBondLeg1 = new List<CashFlow>{new SimpleCashFlow(100.0, zeroCpnBondRedemption1)};
             Bond zeroCpnBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  zeroCpnBondMaturityDate1, zeroCpnBondStartDate1, zeroCpnBondLeg1);
             zeroCpnBond1.setPricingEngine(bondEngine);

             double zeroCpnBondImpliedValue1 = zeroCpnBond1.cleanPrice();
             Date zeroCpnBondSettlementDate1= zeroCpnBond1.settlementDate();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve
             double zeroCpnBondCleanPrice1 =
            BondFunctions.cleanPrice(zeroCpnBond1,
                                 vars.termStructure,
                                 vars.spread,
                                 new Actual365Fixed(),
                                 vars.compounding, Frequency.Annual,
                                 zeroCpnBondSettlementDate1);
             double error13 = Math.Abs(zeroCpnBondImpliedValue1-zeroCpnBondCleanPrice1);
             if (error13>tolerance) {
            Assert.Fail("wrong clean price for zero coupon bond:"
                        + "\n  zero cpn implied value: " +
                        zeroCpnBondImpliedValue1
                        + "\n  zero cpn price: " + zeroCpnBondCleanPrice1
                        + "\n  error:                 " + error13
                        + "\n  tolerance:             " + tolerance);
             }

             // Zero Coupon bond (Isin: IT0001200390 ISPIM 0 02/17/28)
             // maturity occurs on a business day

             Date zeroCpnBondStartDate2 = new Date(17,Month.February,1998);
             Date zeroCpnBondMaturityDate2 = new Date(17,Month.February,2028);
             Date zerocpbondRedemption2 = bondCalendar.adjust(zeroCpnBondMaturityDate2,
                                                         BusinessDayConvention.Following);
             List<CashFlow> zeroCpnBondLeg2 = new List<CashFlow>{new SimpleCashFlow(100.0, zerocpbondRedemption2)};
             Bond zeroCpnBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  zeroCpnBondMaturityDate2, zeroCpnBondStartDate2, zeroCpnBondLeg2);
             zeroCpnBond2.setPricingEngine(bondEngine);

             double zeroCpnBondImpliedValue2 = zeroCpnBond2.cleanPrice();
             Date zeroCpnBondSettlementDate2= zeroCpnBond2.settlementDate();
             // standard market conventions:
             // bond's frequency + coumpounding and daycounter of the YieldCurve
             double zeroCpnBondCleanPrice2 =
            BondFunctions.cleanPrice(zeroCpnBond2,
                                 vars.termStructure,
                                 vars.spread,
                                 new Actual365Fixed(),
                                 vars.compounding, Frequency.Annual,
                                 zeroCpnBondSettlementDate2);
             double error15 = Math.Abs(zeroCpnBondImpliedValue2-zeroCpnBondCleanPrice2);
             if (error15>tolerance) {
            Assert.Fail("wrong clean price for zero coupon bond:"
                        + "\n  zero cpn implied value: " +
                        zeroCpnBondImpliedValue2
                        + "\n  zero cpn price: " + zeroCpnBondCleanPrice2
                        + "\n  error:                 " + error15
                        + "\n  tolerance:             " + tolerance);
             }
        }
Ejemplo n.º 14
0
        public void testMASWWithGenericBond()
        {
            // Testing market asset swap against par asset swap with generic bond...

             CommonVars vars = new CommonVars();

             Calendar bondCalendar = new TARGET();
             int settlementDays = 3;
             int fixingDays = 2;
             bool payFixedRate = true;
             bool parAssetSwap = true;
             bool mktAssetSwap = false;
             bool inArrears = false;

             // Fixed Underlying bond (Isin: DE0001135275 DBR 4 01/04/37)
             // maturity doesn't occur on a business day

             Date fixedBondStartDate1 = new Date(4,Month.January,2005);
             Date fixedBondMaturityDate1 = new Date(4,Month.January,2037);
             Schedule fixedBondSchedule1 = new Schedule(fixedBondStartDate1,
                                    fixedBondMaturityDate1,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg1 = new FixedRateLeg(fixedBondSchedule1)
            .withCouponRates(0.04, new ActualActual(ActualActual.Convention.ISDA))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption1 = bondCalendar.adjust(fixedBondMaturityDate1,   BusinessDayConvention.Following);
             fixedBondLeg1.Add(new SimpleCashFlow(100.0, fixedbondRedemption1));
             Bond fixedBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount, fixedBondMaturityDate1,
            fixedBondStartDate1, fixedBondLeg1);
             IPricingEngine bondEngine = new DiscountingBondEngine(vars.termStructure);
             IPricingEngine swapEngine = new DiscountingSwapEngine(vars.termStructure);
             fixedBond1.setPricingEngine(bondEngine);

             double fixedBondMktPrice1 = 89.22 ; // market price observed on 7th June 2007
             double fixedBondMktFullPrice1=fixedBondMktPrice1+fixedBond1.accruedAmount();
             AssetSwap fixedBondParAssetSwap1= new AssetSwap(payFixedRate,
                                          fixedBond1, fixedBondMktPrice1,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             fixedBondParAssetSwap1.setPricingEngine(swapEngine);
             double fixedBondParAssetSwapSpread1 = fixedBondParAssetSwap1.fairSpread();
             AssetSwap fixedBondMktAssetSwap1 = new AssetSwap(payFixedRate,
                                          fixedBond1, fixedBondMktPrice1,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          mktAssetSwap);
             fixedBondMktAssetSwap1.setPricingEngine(swapEngine);
             double fixedBondMktAssetSwapSpread1 = fixedBondMktAssetSwap1.fairSpread();

             double tolerance = 1.0e-13;
             double error1 =
            Math.Abs(fixedBondMktAssetSwapSpread1-
                     100*fixedBondParAssetSwapSpread1/fixedBondMktFullPrice1);

             if (error1>tolerance)
            Assert.Fail("wrong asset swap spreads for fixed bond:" +
                        "\n  market asset swap spread: " + fixedBondMktAssetSwapSpread1 +
                        "\n  par asset swap spread:    " + fixedBondParAssetSwapSpread1 +
                        "\n  error:                    " + error1 +
                        "\n  tolerance:                " + tolerance);

             // Fixed Underlying bond (Isin: IT0006527060 IBRD 5 02/05/19)
             // maturity occurs on a business day

             Date fixedBondStartDate2 = new Date(5,Month.February,2005);
             Date fixedBondMaturityDate2 = new Date(5,Month.February,2019);
             Schedule fixedBondSchedule2 = new Schedule(fixedBondStartDate2,
                                    fixedBondMaturityDate2,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg2 = new FixedRateLeg(fixedBondSchedule2)
            .withCouponRates(0.05, new Thirty360(Thirty360.Thirty360Convention.BondBasis))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption2 = bondCalendar.adjust(fixedBondMaturityDate2,  BusinessDayConvention.Following);
             fixedBondLeg2.Add(new SimpleCashFlow(100.0, fixedbondRedemption2));
             Bond fixedBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount, fixedBondMaturityDate2, fixedBondStartDate2,
            fixedBondLeg2);
             fixedBond2.setPricingEngine(bondEngine);

             double fixedBondMktPrice2 = 99.98 ; // market price observed on 7th June 2007
             double fixedBondMktFullPrice2=fixedBondMktPrice2+fixedBond2.accruedAmount();
             AssetSwap fixedBondParAssetSwap2= new AssetSwap(payFixedRate,
                                          fixedBond2, fixedBondMktPrice2,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             fixedBondParAssetSwap2.setPricingEngine(swapEngine);
             double fixedBondParAssetSwapSpread2 = fixedBondParAssetSwap2.fairSpread();
             AssetSwap fixedBondMktAssetSwap2= new AssetSwap(payFixedRate,
                                          fixedBond2, fixedBondMktPrice2,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          mktAssetSwap);
             fixedBondMktAssetSwap2.setPricingEngine(swapEngine);
             double fixedBondMktAssetSwapSpread2 = fixedBondMktAssetSwap2.fairSpread();
             double error2 = Math.Abs(fixedBondMktAssetSwapSpread2-
                     100*fixedBondParAssetSwapSpread2/fixedBondMktFullPrice2);

             if (error2>tolerance)
            Assert.Fail("wrong asset swap spreads for fixed bond:" +
                        "\n  market asset swap spread: " + fixedBondMktAssetSwapSpread2 +
                        "\n  par asset swap spread:    " + fixedBondParAssetSwapSpread2 +
                        "\n  error:                    " + error2 +
                        "\n  tolerance:                " + tolerance);

             // FRN Underlying bond (Isin: IT0003543847 ISPIM 0 09/29/13)
             // maturity doesn't occur on a business day

             Date floatingBondStartDate1 = new Date(29,Month.September,2003);
             Date floatingBondMaturityDate1 = new Date(29,Month.September,2013);
             Schedule floatingBondSchedule1= new Schedule(floatingBondStartDate1,
                                       floatingBondMaturityDate1,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg1 = new IborLeg(floatingBondSchedule1, vars.iborIndex)
            .withPaymentDayCounter(new Actual360())
            .withFixingDays(fixingDays)
            .withSpreads(0.0056)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date floatingbondRedemption1 =
            bondCalendar.adjust(floatingBondMaturityDate1, BusinessDayConvention.Following);
             floatingBondLeg1.Add(new SimpleCashFlow(100.0, floatingbondRedemption1));
             Bond floatingBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,  floatingBondMaturityDate1,
            floatingBondStartDate1, floatingBondLeg1);
             floatingBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond1.cashflows(), vars.pricer);
             vars.iborIndex.addFixing(new Date(27,Month.March,2007), 0.0402);
             // market price observed on 7th June 2007
             double floatingBondMktPrice1 = 101.64 ;
             double floatingBondMktFullPrice1 =
            floatingBondMktPrice1+floatingBond1.accruedAmount();
             AssetSwap floatingBondParAssetSwap1 = new AssetSwap(payFixedRate,
                                             floatingBond1, floatingBondMktPrice1,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             parAssetSwap);
             floatingBondParAssetSwap1.setPricingEngine(swapEngine);
             double floatingBondParAssetSwapSpread1 =
            floatingBondParAssetSwap1.fairSpread();
             AssetSwap floatingBondMktAssetSwap1 = new AssetSwap(payFixedRate,
                                             floatingBond1, floatingBondMktPrice1,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             mktAssetSwap);
             floatingBondMktAssetSwap1.setPricingEngine(swapEngine);
             double floatingBondMktAssetSwapSpread1 =
            floatingBondMktAssetSwap1.fairSpread();
             double error3 = Math.Abs(floatingBondMktAssetSwapSpread1-
                     100*floatingBondParAssetSwapSpread1/floatingBondMktFullPrice1);

             if (error3>tolerance)
            Assert.Fail("wrong asset swap spreads for floating bond:" +
                        "\n  market asset swap spread: " + floatingBondMktAssetSwapSpread1 +
                        "\n  par asset swap spread:    " + floatingBondParAssetSwapSpread1 +
                        "\n  error:                    " + error3 +
                        "\n  tolerance:                " + tolerance);

             // FRN Underlying bond (Isin: XS0090566539 COE 0 09/24/18)
             // maturity occurs on a business day

             Date floatingBondStartDate2 = new Date(24,Month.September,2004);
             Date floatingBondMaturityDate2 = new Date(24,Month.September,2018);
             Schedule floatingBondSchedule2 = new Schedule(floatingBondStartDate2,
                                       floatingBondMaturityDate2,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.ModifiedFollowing, BusinessDayConvention.ModifiedFollowing,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg2 = new IborLeg(floatingBondSchedule2, vars.iborIndex)
            .withFixingDays(fixingDays)
            .withSpreads(0.0025)
            .inArrears(inArrears)
            .withPaymentDayCounter(new Actual360())
            .withPaymentAdjustment(BusinessDayConvention.ModifiedFollowing)
            .withNotionals(vars.faceAmount);
             Date floatingbondRedemption2 =
            bondCalendar.adjust(floatingBondMaturityDate2, BusinessDayConvention.ModifiedFollowing);
             floatingBondLeg2.Add(new
            SimpleCashFlow(100.0, floatingbondRedemption2));
             Bond floatingBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount, floatingBondMaturityDate2,
            floatingBondStartDate2, floatingBondLeg2);
             floatingBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond2.cashflows(), vars.pricer);
             vars.iborIndex.addFixing(new Date(22,Month.March,2007), 0.04013);
             // market price observed on 7th June 2007
             double floatingBondMktPrice2 = 101.248 ;
             double floatingBondMktFullPrice2 =
            floatingBondMktPrice2+floatingBond2.accruedAmount();
             AssetSwap floatingBondParAssetSwap2 = new AssetSwap(payFixedRate,
                                             floatingBond2, floatingBondMktPrice2,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             parAssetSwap);
             floatingBondParAssetSwap2.setPricingEngine(swapEngine);
             double floatingBondParAssetSwapSpread2 = floatingBondParAssetSwap2.fairSpread();
             AssetSwap floatingBondMktAssetSwap2 = new AssetSwap(payFixedRate,
                                             floatingBond2, floatingBondMktPrice2,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             mktAssetSwap);
             floatingBondMktAssetSwap2.setPricingEngine(swapEngine);
             double floatingBondMktAssetSwapSpread2 =
            floatingBondMktAssetSwap2.fairSpread();
             double error4 = Math.Abs(floatingBondMktAssetSwapSpread2-
                     100*floatingBondParAssetSwapSpread2/floatingBondMktFullPrice2);

             if (error4>tolerance)
            Assert.Fail("wrong asset swap spreads for floating bond:" +
                        "\n  market asset swap spread: " + floatingBondMktAssetSwapSpread2 +
                        "\n  par asset swap spread:    " + floatingBondParAssetSwapSpread2 +
                        "\n  error:                    " + error4 +
                        "\n  tolerance:                " + tolerance);

             // CMS Underlying bond (Isin: XS0228052402 CRDIT 0 8/22/20)
             // maturity doesn't occur on a business day

             Date cmsBondStartDate1 = new Date(22,Month.August,2005);
             Date cmsBondMaturityDate1 = new Date(22,Month.August,2020);
             Schedule cmsBondSchedule1= new Schedule(cmsBondStartDate1,
                                 cmsBondMaturityDate1,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg1 = new CmsLeg(cmsBondSchedule1, vars.swapIndex)
            .withPaymentDayCounter(new Thirty360())
            .withFixingDays(fixingDays)
            .withCaps(0.055)
            .withFloors(0.025)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption1 = bondCalendar.adjust(cmsBondMaturityDate1, BusinessDayConvention.Following);
             cmsBondLeg1.Add(new SimpleCashFlow(100.0, cmsbondRedemption1));
             Bond cmsBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount, cmsBondMaturityDate1, cmsBondStartDate1,
            cmsBondLeg1);
             cmsBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond1.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(18,Month.August,2006), 0.04158);
             double cmsBondMktPrice1 = 88.45 ; // market price observed on 7th June 2007
             double cmsBondMktFullPrice1 = cmsBondMktPrice1+cmsBond1.accruedAmount();
             AssetSwap cmsBondParAssetSwap1 = new AssetSwap(payFixedRate,
                                       cmsBond1, cmsBondMktPrice1,
                                       vars.iborIndex, vars.spread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             cmsBondParAssetSwap1.setPricingEngine(swapEngine);
             double cmsBondParAssetSwapSpread1 = cmsBondParAssetSwap1.fairSpread();
             AssetSwap cmsBondMktAssetSwap1 = new AssetSwap(payFixedRate,
                                       cmsBond1, cmsBondMktPrice1,
                                       vars.iborIndex, vars.spread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       mktAssetSwap);
             cmsBondMktAssetSwap1.setPricingEngine(swapEngine);
             double cmsBondMktAssetSwapSpread1 = cmsBondMktAssetSwap1.fairSpread();
             double error5 =
            Math.Abs(cmsBondMktAssetSwapSpread1-
                     100*cmsBondParAssetSwapSpread1/cmsBondMktFullPrice1);

             if (error5>tolerance)
            Assert.Fail("wrong asset swap spreads for cms bond:" +
                        "\n  market asset swap spread: " + cmsBondMktAssetSwapSpread1 +
                        "\n  par asset swap spread:    " + cmsBondParAssetSwapSpread1 +
                        "\n  error:                    " + error5 +
                        "\n  tolerance:                " + tolerance);

             // CMS Underlying bond (Isin: XS0218766664 ISPIM 0 5/6/15)
             // maturity occurs on a business day

             Date cmsBondStartDate2 = new Date(06,Month.May,2005);
             Date cmsBondMaturityDate2 = new Date(06,Month.May,2015);
             Schedule cmsBondSchedule2= new Schedule(cmsBondStartDate2,
                                 cmsBondMaturityDate2,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg2 = new CmsLeg(cmsBondSchedule2, vars.swapIndex)
            .withPaymentDayCounter(new Thirty360())
            .withFixingDays(fixingDays)
            .withGearings(0.84)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption2 = bondCalendar.adjust(cmsBondMaturityDate2,  BusinessDayConvention.Following);
             cmsBondLeg2.Add(new SimpleCashFlow(100.0, cmsbondRedemption2));
             Bond cmsBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,  cmsBondMaturityDate2, cmsBondStartDate2,
            cmsBondLeg2);
             cmsBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond2.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(04,Month.May,2006), 0.04217);
             double cmsBondMktPrice2 = 94.08 ; // market price observed on 7th June 2007
             double cmsBondMktFullPrice2 = cmsBondMktPrice2+cmsBond2.accruedAmount();
             AssetSwap cmsBondParAssetSwap2 = new AssetSwap(payFixedRate,
                                       cmsBond2, cmsBondMktPrice2,
                                       vars.iborIndex, vars.spread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             cmsBondParAssetSwap2.setPricingEngine(swapEngine);
             double cmsBondParAssetSwapSpread2 = cmsBondParAssetSwap2.fairSpread();
             AssetSwap cmsBondMktAssetSwap2 = new AssetSwap(payFixedRate,
                                       cmsBond2, cmsBondMktPrice2,
                                       vars.iborIndex, vars.spread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       mktAssetSwap);
             cmsBondMktAssetSwap2.setPricingEngine(swapEngine);
             double cmsBondMktAssetSwapSpread2 = cmsBondMktAssetSwap2.fairSpread();
             double error6 =
            Math.Abs(cmsBondMktAssetSwapSpread2-
                     100*cmsBondParAssetSwapSpread2/cmsBondMktFullPrice2);

             if (error6>tolerance)
            Assert.Fail("wrong asset swap spreads for cms bond:" +
                        "\n  market asset swap spread: " + cmsBondMktAssetSwapSpread2 +
                        "\n  par asset swap spread:    " + cmsBondParAssetSwapSpread2 +
                        "\n  error:                    " + error6 +
                        "\n  tolerance:                " + tolerance);

             // Zero Coupon bond (Isin: DE0004771662 IBRD 0 12/20/15)
             // maturity doesn't occur on a business day

             Date zeroCpnBondStartDate1 = new Date(19,Month.December,1985);
             Date zeroCpnBondMaturityDate1 = new Date(20,Month.December,2015);
             Date zeroCpnBondRedemption1 = bondCalendar.adjust(zeroCpnBondMaturityDate1,
                                                         BusinessDayConvention.Following);
             List<CashFlow> zeroCpnBondLeg1 = new List<CashFlow>{new SimpleCashFlow(100.0, zeroCpnBondRedemption1)};
             Bond zeroCpnBond1 = new  Bond(settlementDays, bondCalendar, vars.faceAmount, zeroCpnBondMaturityDate1,
            zeroCpnBondStartDate1, zeroCpnBondLeg1);
             zeroCpnBond1.setPricingEngine(bondEngine);

             // market price observed on 12th June 2007
             double zeroCpnBondMktPrice1 = 70.436 ;
             double zeroCpnBondMktFullPrice1 =
            zeroCpnBondMktPrice1+zeroCpnBond1.accruedAmount();
             AssetSwap zeroCpnBondParAssetSwap1 = new AssetSwap(payFixedRate,zeroCpnBond1,
                                          zeroCpnBondMktPrice1,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             zeroCpnBondParAssetSwap1.setPricingEngine(swapEngine);
             double zeroCpnBondParAssetSwapSpread1 = zeroCpnBondParAssetSwap1.fairSpread();
             AssetSwap zeroCpnBondMktAssetSwap1 = new AssetSwap(payFixedRate,zeroCpnBond1,
                                          zeroCpnBondMktPrice1,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          mktAssetSwap);
             zeroCpnBondMktAssetSwap1.setPricingEngine(swapEngine);
             double zeroCpnBondMktAssetSwapSpread1 = zeroCpnBondMktAssetSwap1.fairSpread();
             double error7 =
            Math.Abs(zeroCpnBondMktAssetSwapSpread1-
                     100*zeroCpnBondParAssetSwapSpread1/zeroCpnBondMktFullPrice1);

             if (error7>tolerance)
            Assert.Fail("wrong asset swap spreads for zero cpn bond:" +
                        "\n  market asset swap spread: " + zeroCpnBondMktAssetSwapSpread1 +
                        "\n  par asset swap spread:    " + zeroCpnBondParAssetSwapSpread1 +
                        "\n  error:                    " + error7 +
                        "\n  tolerance:                " + tolerance);

             // Zero Coupon bond (Isin: IT0001200390 ISPIM 0 02/17/28)
             // maturity occurs on a business day

             Date zeroCpnBondStartDate2 = new Date(17,Month.February,1998);
             Date zeroCpnBondMaturityDate2 = new Date(17,Month.February,2028);
             Date zerocpbondRedemption2 = bondCalendar.adjust(zeroCpnBondMaturityDate2,
                                                         BusinessDayConvention.Following);
             List<CashFlow> zeroCpnBondLeg2 = new List<CashFlow>{new SimpleCashFlow(100.0, zerocpbondRedemption2)};
             Bond zeroCpnBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  zeroCpnBondMaturityDate2, zeroCpnBondStartDate2, zeroCpnBondLeg2);
             zeroCpnBond2.setPricingEngine(bondEngine);

             // double zeroCpnBondPrice2 = zeroCpnBond2.cleanPrice();
             // market price observed on 12th June 2007
             double zeroCpnBondMktPrice2 = 35.160 ;
             double zeroCpnBondMktFullPrice2 =
            zeroCpnBondMktPrice2+zeroCpnBond2.accruedAmount();
             AssetSwap zeroCpnBondParAssetSwap2 = new AssetSwap(payFixedRate,zeroCpnBond2,
                                          zeroCpnBondMktPrice2,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             zeroCpnBondParAssetSwap2.setPricingEngine(swapEngine);
             double zeroCpnBondParAssetSwapSpread2 = zeroCpnBondParAssetSwap2.fairSpread();
             AssetSwap zeroCpnBondMktAssetSwap2 = new AssetSwap(payFixedRate,zeroCpnBond2,
                                          zeroCpnBondMktPrice2,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          mktAssetSwap);
             zeroCpnBondMktAssetSwap2.setPricingEngine(swapEngine);
             double zeroCpnBondMktAssetSwapSpread2 = zeroCpnBondMktAssetSwap2.fairSpread();
             double error8 =
            Math.Abs(zeroCpnBondMktAssetSwapSpread2-
                     100*zeroCpnBondParAssetSwapSpread2/zeroCpnBondMktFullPrice2);

             if (error8>tolerance)
            Assert.Fail("wrong asset swap spreads for zero cpn bond:" +
                        "\n  market asset swap spread: " + zeroCpnBondMktAssetSwapSpread2 +
                        "\n  par asset swap spread:    " + zeroCpnBondParAssetSwapSpread2 +
                        "\n  error:                    " + error8 +
                        "\n  tolerance:                " + tolerance);
        }
Ejemplo n.º 15
0
        public AssetSwap(bool payBondCoupon,
                         Bond bond,
                         double bondCleanPrice,
                         IborIndex iborIndex,
                         double spread,
                         Schedule floatSchedule      = null,
                         DayCounter floatingDayCount = null,
                         bool parAssetSwap           = true)
            : base(2)
        {
            bond_            = bond;
            bondCleanPrice_  = bondCleanPrice;
            nonParRepayment_ = 100;
            spread_          = spread;
            parSwap_         = parAssetSwap;

            Schedule schedule = floatSchedule;

            if (floatSchedule == null)
            {
                schedule = new Schedule(bond_.settlementDate(),
                                        bond_.maturityDate(),
                                        iborIndex.tenor(),
                                        iborIndex.fixingCalendar(),
                                        iborIndex.businessDayConvention(),
                                        iborIndex.businessDayConvention(),
                                        DateGeneration.Rule.Backward,
                                        false); // endOfMonth
            }
            // the following might become an input parameter
            BusinessDayConvention paymentAdjustment = BusinessDayConvention.Following;

            Date finalDate           = schedule.calendar().adjust(schedule.endDate(), paymentAdjustment);
            Date adjBondMaturityDate = schedule.calendar().adjust(bond_.maturityDate(), paymentAdjustment);

            Utils.QL_REQUIRE(finalDate == adjBondMaturityDate, () =>
                             "adjusted schedule end date (" +
                             finalDate +
                             ") must be equal to adjusted bond maturity date (" +
                             adjBondMaturityDate + ")");

            // bondCleanPrice must be the (forward) clean price
            // at the floating schedule start date
            upfrontDate_ = schedule.startDate();
            double dirtyPrice = bondCleanPrice_ +
                                bond_.accruedAmount(upfrontDate_);

            double notional = bond_.notional(upfrontDate_);

            /* In the market asset swap, the bond is purchased in return for
             * payment of the full price. The notional of the floating leg is
             * then scaled by the full price. */
            if (!parSwap_)
            {
                notional *= dirtyPrice / 100.0;
            }

            if (floatingDayCount == null)
            {
                legs_[1] = new IborLeg(schedule, iborIndex)
                           .withSpreads(spread)
                           .withNotionals(notional)
                           .withPaymentAdjustment(paymentAdjustment);
            }
            else
            {
                legs_[1] = new IborLeg(schedule, iborIndex)
                           .withSpreads(spread)
                           .withPaymentDayCounter(floatingDayCount)
                           .withNotionals(notional)
                           .withPaymentAdjustment(paymentAdjustment);
            }

            foreach (CashFlow c in legs_[1])
            {
                c.registerWith(update);
            }

            List <CashFlow> bondLeg = bond_.cashflows();

            foreach (CashFlow c in bondLeg)
            {
                // whatever might be the choice for the discounting engine
                // bond flows on upfrontDate_ must be discarded
                bool upfrontDateBondFlows = false;
                if (!(c.hasOccurred(upfrontDate_, upfrontDateBondFlows)))
                {
                    legs_[0].Add(c);
                }
            }

            Utils.QL_REQUIRE(!legs_[0].empty(), () => "empty bond leg to start with");

            // special flows
            if (parSwap_)
            {
                // upfront on the floating leg
                double   upfront         = (dirtyPrice - 100.0) / 100.0 * notional;
                CashFlow upfrontCashFlow = new SimpleCashFlow(upfront, upfrontDate_);
                legs_[1].Insert(0, upfrontCashFlow);
                // backpayment on the floating leg
                // (accounts for non-par redemption, if any)
                double   backPayment         = notional;
                CashFlow backPaymentCashFlow = new SimpleCashFlow(backPayment, finalDate);
                legs_[1].Add(backPaymentCashFlow);
            }
            else
            {
                // final notional exchange
                CashFlow finalCashFlow = new SimpleCashFlow(notional, finalDate);
                legs_[1].Add(finalCashFlow);
            }

            Utils.QL_REQUIRE(!legs_[0].empty(), () => "empty bond leg");

            foreach (CashFlow c in legs_[0])
            {
                c.registerWith(update);
            }

            if (payBondCoupon)
            {
                payer_[0] = -1.0;
                payer_[1] = +1.0;
            }
            else
            {
                payer_[0] = +1.0;
                payer_[1] = -1.0;
            }
        }
Ejemplo n.º 16
0
        public void testInArrears()
        {
            //("Testing in-arrears swap calculation...");

             CommonVars vars = new CommonVars();

             /* See Hull, 4th ed., page 550
            Note: the calculation in the book is wrong (work out the adjustment and you'll get 0.05 + 0.000115 T1) */
             Date maturity = vars.today + new Period(5, TimeUnit.Years);
             Calendar calendar = new NullCalendar();
             Schedule schedule = new Schedule(vars.today, maturity, new Period(Frequency.Annual), calendar,
                                          BusinessDayConvention.Following, BusinessDayConvention.Following,
                                          DateGeneration.Rule.Forward, false);
             DayCounter dayCounter = new SimpleDayCounter();

             List<double> nominals = new List<double>() { 100000000.0 };

             IborIndex index = new IborIndex("dummy", new Period(1, TimeUnit.Years), 0, new EURCurrency(), calendar,
                                         BusinessDayConvention.Following, false, dayCounter, vars.termStructure);
             double oneYear = 0.05;
             double r = Math.Log(1.0 + oneYear);
             vars.termStructure.linkTo(Utilities.flatRate(vars.today, r, dayCounter));

             List<double> coupons = new List<double>() { oneYear };
             List<CashFlow> fixedLeg = new FixedRateLeg(schedule)
                                 .withCouponRates(coupons, dayCounter)
                                 .withNotionals(nominals);

             List<double> gearings = new List<double>();
             List<double> spreads = new List<double>();
             int fixingDays = 0;

             double capletVolatility = 0.22;
             var vol = new Handle<OptionletVolatilityStructure>(
                        new ConstantOptionletVolatility(vars.today, new NullCalendar(),
                                                        BusinessDayConvention.Following, capletVolatility, dayCounter));
             IborCouponPricer pricer = new BlackIborCouponPricer(vol);

             List<CashFlow> floatingLeg = new IborLeg(schedule, index)
                                     .withPaymentDayCounter(dayCounter)
                                     .withFixingDays(fixingDays)
                                     .withGearings(gearings)
                                     .withSpreads(spreads)
                                     .inArrears()
                                     .withNotionals(nominals);
             Utils.setCouponPricer(floatingLeg, pricer);

             Swap swap = new Swap(floatingLeg, fixedLeg);
             swap.setPricingEngine(new DiscountingSwapEngine(vars.termStructure));

             double storedValue = -144813.0;
             double tolerance = 1.0;

             if (Math.Abs(swap.NPV() - storedValue) > tolerance)
            Assert.Fail("Wrong NPV calculation:\n"
                        + "    expected:   " + storedValue + "\n"
                        + "    calculated: " + swap.NPV());
        }
Ejemplo n.º 17
0
      public ConvertibleFloatingRateBond( Exercise exercise,
                                          double conversionRatio,
                                          DividendSchedule dividends,
                                          CallabilitySchedule callability,
                                          Handle<Quote> creditSpread,
                                          Date issueDate,
                                          int settlementDays,
                                          IborIndex index,
                                          int fixingDays,
                                          List<double> spreads,
                                          DayCounter dayCounter,
                                          Schedule schedule,
                                          double redemption = 100)
         : base(exercise, conversionRatio, dividends, callability, creditSpread, issueDate, settlementDays, schedule, redemption) 

      {
        // !!! notional forcibly set to 100
        cashflows_ = new IborLeg(schedule, index)
                        .withPaymentDayCounter(dayCounter)
                        .withFixingDays(fixingDays)
                        .withSpreads(spreads)
                        .withNotionals(100.0)
                        .withPaymentAdjustment(schedule.businessDayConvention());

        addRedemptionsToCashflows(new List<double>{redemption});

        Utils.QL_REQUIRE( redemptions_.Count == 1, () => "multiple redemptions created" );

        option_ = new option(this, exercise, conversionRatio, dividends, callability, creditSpread, cashflows_, dayCounter, schedule,
                             issueDate, settlementDays, redemption);
    
      }
Ejemplo n.º 18
0
        public void testSpecializedBondVsGenericBondUsingAsw()
        {
            // Testing asset-swap prices and spreads for specialized bond against equivalent generic bond...
             CommonVars vars = new CommonVars();

             Calendar bondCalendar = new TARGET();
             int settlementDays = 3;
             int fixingDays = 2;
             bool payFixedRate = true;
             bool parAssetSwap = true;
             bool inArrears = false;

             // Fixed bond (Isin: DE0001135275 DBR 4 01/04/37)
             // maturity doesn't occur on a business day
             Date fixedBondStartDate1 = new Date(4,Month.January,2005);
             Date fixedBondMaturityDate1 = new Date(4,Month.January,2037);
             Schedule fixedBondSchedule1 = new Schedule(fixedBondStartDate1,
                                    fixedBondMaturityDate1,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg1 = new FixedRateLeg(fixedBondSchedule1)
            .withCouponRates(0.04, new ActualActual(ActualActual.Convention.ISDA))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption1 = bondCalendar.adjust(fixedBondMaturityDate1, BusinessDayConvention.Following);
             fixedBondLeg1.Add(new SimpleCashFlow(100.0, fixedbondRedemption1));
             // generic bond
             Bond fixedBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  fixedBondMaturityDate1, fixedBondStartDate1, fixedBondLeg1);
             IPricingEngine bondEngine = new DiscountingBondEngine(vars.termStructure);
             IPricingEngine swapEngine = new DiscountingSwapEngine(vars.termStructure);
             fixedBond1.setPricingEngine(bondEngine);

             // equivalent specialized fixed rate bond
             Bond fixedSpecializedBond1 = new FixedRateBond(settlementDays, vars.faceAmount, fixedBondSchedule1,
                           new List<double>{0.04},
                           new ActualActual(ActualActual.Convention.ISDA), BusinessDayConvention.Following,
                           100.0, new Date(4,Month.January,2005));
             fixedSpecializedBond1.setPricingEngine(bondEngine);

             double fixedBondPrice1 = fixedBond1.cleanPrice();
             double fixedSpecializedBondPrice1 = fixedSpecializedBond1.cleanPrice();
             AssetSwap fixedBondAssetSwap1 = new AssetSwap(payFixedRate,
                                       fixedBond1, fixedBondPrice1,
                                       vars.iborIndex, vars.nonnullspread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             fixedBondAssetSwap1.setPricingEngine(swapEngine);
             AssetSwap fixedSpecializedBondAssetSwap1 = new AssetSwap(payFixedRate,
                                                fixedSpecializedBond1,
                                                fixedSpecializedBondPrice1,
                                                vars.iborIndex,
                                                vars.nonnullspread,
                                                null,
                                                vars.iborIndex.dayCounter(),
                                                parAssetSwap);
             fixedSpecializedBondAssetSwap1.setPricingEngine(swapEngine);
             double fixedBondAssetSwapPrice1 = fixedBondAssetSwap1.fairCleanPrice();
             double fixedSpecializedBondAssetSwapPrice1 =
            fixedSpecializedBondAssetSwap1.fairCleanPrice();
             double tolerance = 1.0e-13;
             double error1 =
            Math.Abs(fixedBondAssetSwapPrice1-fixedSpecializedBondAssetSwapPrice1);
             if (error1>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  generic  fixed rate bond's  clean price: "
                        + fixedBondAssetSwapPrice1
                        + "\n  equivalent specialized bond's clean price: "
                        + fixedSpecializedBondAssetSwapPrice1
                        + "\n  error:                 " + error1
                        + "\n  tolerance:             " + tolerance);
             }
             // market executable price as of 4th sept 2007
             double fixedBondMktPrice1= 91.832;
             AssetSwap fixedBondASW1 = new AssetSwap(payFixedRate,
                                 fixedBond1, fixedBondMktPrice1,
                                 vars.iborIndex, vars.spread,
                                 null,
                                 vars.iborIndex.dayCounter(),
                                 parAssetSwap);
             fixedBondASW1.setPricingEngine(swapEngine);
             AssetSwap fixedSpecializedBondASW1 = new AssetSwap(payFixedRate,
                                          fixedSpecializedBond1,
                                          fixedBondMktPrice1,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             fixedSpecializedBondASW1.setPricingEngine(swapEngine);
             double fixedBondASWSpread1 = fixedBondASW1.fairSpread();
             double fixedSpecializedBondASWSpread1 = fixedSpecializedBondASW1.fairSpread();
             double error2 = Math.Abs(fixedBondASWSpread1-fixedSpecializedBondASWSpread1);
             if (error2>tolerance) {
            Assert.Fail("wrong asw spread  for fixed bond:"
                        + "\n  generic  fixed rate bond's  asw spread: "
                        + fixedBondASWSpread1
                        + "\n  equivalent specialized bond's asw spread: "
                        + fixedSpecializedBondASWSpread1
                        + "\n  error:                 " + error2
                        + "\n  tolerance:             " + tolerance);
             }

             //Fixed bond (Isin: IT0006527060 IBRD 5 02/05/19)
             //maturity occurs on a business day

             Date fixedBondStartDate2 = new Date(5,Month.February,2005);
             Date fixedBondMaturityDate2 = new Date(5,Month.February,2019);
             Schedule fixedBondSchedule2= new Schedule(fixedBondStartDate2,
                                    fixedBondMaturityDate2,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg2 = new FixedRateLeg(fixedBondSchedule2)
            .withCouponRates(0.05, new Thirty360(Thirty360.Thirty360Convention.BondBasis))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption2 = bondCalendar.adjust(fixedBondMaturityDate2, BusinessDayConvention.Following);
             fixedBondLeg2.Add(new SimpleCashFlow(100.0, fixedbondRedemption2));

             // generic bond
             Bond fixedBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  fixedBondMaturityDate2, fixedBondStartDate2, fixedBondLeg2);
             fixedBond2.setPricingEngine(bondEngine);

             // equivalent specialized fixed rate bond
             Bond fixedSpecializedBond2 = new FixedRateBond(settlementDays, vars.faceAmount, fixedBondSchedule2,
                           new List<double>{ 0.05},
                           new Thirty360(Thirty360.Thirty360Convention.BondBasis), BusinessDayConvention.Following,
                           100.0, new Date(5,Month.February,2005));
             fixedSpecializedBond2.setPricingEngine(bondEngine);

             double fixedBondPrice2 = fixedBond2.cleanPrice();
             double fixedSpecializedBondPrice2 = fixedSpecializedBond2.cleanPrice();
             AssetSwap fixedBondAssetSwap2 = new AssetSwap(payFixedRate,
                                       fixedBond2, fixedBondPrice2,
                                       vars.iborIndex, vars.nonnullspread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             fixedBondAssetSwap2.setPricingEngine(swapEngine);
             AssetSwap fixedSpecializedBondAssetSwap2 = new AssetSwap(payFixedRate,
                                                fixedSpecializedBond2,
                                                fixedSpecializedBondPrice2,
                                                vars.iborIndex,
                                                vars.nonnullspread,
                                                null,
                                                vars.iborIndex.dayCounter(),
                                                parAssetSwap);
             fixedSpecializedBondAssetSwap2.setPricingEngine(swapEngine);
             double fixedBondAssetSwapPrice2 = fixedBondAssetSwap2.fairCleanPrice();
             double fixedSpecializedBondAssetSwapPrice2 = fixedSpecializedBondAssetSwap2.fairCleanPrice();

             double error3 = Math.Abs(fixedBondAssetSwapPrice2-fixedSpecializedBondAssetSwapPrice2);
             if (error3>tolerance) {
            Assert.Fail("wrong clean price for fixed bond:"
                        + "\n  generic  fixed rate bond's clean price: "
                        + fixedBondAssetSwapPrice2
                        + "\n  equivalent specialized  bond's clean price: "
                        + fixedSpecializedBondAssetSwapPrice2
                        + "\n  error:                 " + error3
                        + "\n  tolerance:             " + tolerance);
             }
             // market executable price as of 4th sept 2007
             double fixedBondMktPrice2= 102.178;
             AssetSwap fixedBondASW2 = new AssetSwap(payFixedRate,
                                 fixedBond2, fixedBondMktPrice2,
                                 vars.iborIndex, vars.spread,
                                 null,
                                 vars.iborIndex.dayCounter(),
                                 parAssetSwap);
             fixedBondASW2.setPricingEngine(swapEngine);
             AssetSwap fixedSpecializedBondASW2 = new AssetSwap(payFixedRate,
                                          fixedSpecializedBond2,
                                          fixedBondMktPrice2,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             fixedSpecializedBondASW2.setPricingEngine(swapEngine);
             double fixedBondASWSpread2 = fixedBondASW2.fairSpread();
             double fixedSpecializedBondASWSpread2 = fixedSpecializedBondASW2.fairSpread();
             double error4 = Math.Abs(fixedBondASWSpread2-fixedSpecializedBondASWSpread2);
             if (error4>tolerance) {
            Assert.Fail("wrong asw spread for fixed bond:"
                        + "\n  generic  fixed rate bond's  asw spread: "
                        + fixedBondASWSpread2
                        + "\n  equivalent specialized bond's asw spread: "
                        + fixedSpecializedBondASWSpread2
                        + "\n  error:                 " + error4
                        + "\n  tolerance:             " + tolerance);
             }

             //FRN bond (Isin: IT0003543847 ISPIM 0 09/29/13)
             //maturity doesn't occur on a business day
             Date floatingBondStartDate1 = new Date(29,Month.September,2003);
             Date floatingBondMaturityDate1 = new Date(29,Month.September,2013);
             Schedule floatingBondSchedule1= new Schedule(floatingBondStartDate1,
                                       floatingBondMaturityDate1,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg1 = new IborLeg(floatingBondSchedule1, vars.iborIndex)
            .withPaymentDayCounter(new Actual360())
            .withFixingDays(fixingDays)
            .withSpreads(0.0056)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date floatingbondRedemption1 = bondCalendar.adjust(floatingBondMaturityDate1, BusinessDayConvention.Following);
             floatingBondLeg1.Add(new SimpleCashFlow(100.0, floatingbondRedemption1));
             // generic bond
             Bond floatingBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  floatingBondMaturityDate1, floatingBondStartDate1, floatingBondLeg1);
             floatingBond1.setPricingEngine(bondEngine);

             // equivalent specialized floater
             Bond floatingSpecializedBond1 = new FloatingRateBond(settlementDays, vars.faceAmount,
                                 floatingBondSchedule1,
                                 vars.iborIndex, new Actual360(),
                                 BusinessDayConvention.Following, fixingDays,
                                 new List<double>{1},
                                 new List<double>{0.0056},
                                 new List<double>(), new List<double>(),
                                 inArrears,
                                 100.0, new Date(29,Month.September,2003));
             floatingSpecializedBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond1.cashflows(), vars.pricer);
             Utils.setCouponPricer(floatingSpecializedBond1.cashflows(), vars.pricer);
             vars.iborIndex.addFixing(new Date(27,Month.March,2007), 0.0402);
             double floatingBondPrice1 = floatingBond1.cleanPrice();
             double floatingSpecializedBondPrice1= floatingSpecializedBond1.cleanPrice();
             AssetSwap floatingBondAssetSwap1= new AssetSwap(payFixedRate,
                                          floatingBond1, floatingBondPrice1,
                                          vars.iborIndex, vars.nonnullspread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             floatingBondAssetSwap1.setPricingEngine(swapEngine);
             AssetSwap floatingSpecializedBondAssetSwap1= new AssetSwap(payFixedRate,
                                                   floatingSpecializedBond1,
                                                   floatingSpecializedBondPrice1,
                                                   vars.iborIndex,
                                                   vars.nonnullspread,
                                                   null,
                                                   vars.iborIndex.dayCounter(),
                                                   parAssetSwap);
             floatingSpecializedBondAssetSwap1.setPricingEngine(swapEngine);
             double floatingBondAssetSwapPrice1 = floatingBondAssetSwap1.fairCleanPrice();
             double floatingSpecializedBondAssetSwapPrice1 =
            floatingSpecializedBondAssetSwap1.fairCleanPrice();

             double error5 =
            Math.Abs(floatingBondAssetSwapPrice1-floatingSpecializedBondAssetSwapPrice1);
             if (error5>tolerance) {
            Assert.Fail("wrong clean price for frnbond:"
                        + "\n  generic frn rate bond's clean price: "
                        + floatingBondAssetSwapPrice1
                        + "\n  equivalent specialized  bond's price: "
                        + floatingSpecializedBondAssetSwapPrice1
                        + "\n  error:                 " + error5
                        + "\n  tolerance:             " + tolerance);
             }
             // market executable price as of 4th sept 2007
             double floatingBondMktPrice1= 101.33;
             AssetSwap floatingBondASW1= new AssetSwap(payFixedRate,
                                    floatingBond1, floatingBondMktPrice1,
                                    vars.iborIndex, vars.spread,
                                    null,
                                    vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             floatingBondASW1.setPricingEngine(swapEngine);
             AssetSwap floatingSpecializedBondASW1= new AssetSwap(payFixedRate,
                                             floatingSpecializedBond1,
                                             floatingBondMktPrice1,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             parAssetSwap);
             floatingSpecializedBondASW1.setPricingEngine(swapEngine);
             double floatingBondASWSpread1 = floatingBondASW1.fairSpread();
             double floatingSpecializedBondASWSpread1 =
            floatingSpecializedBondASW1.fairSpread();
             double error6 =
            Math.Abs(floatingBondASWSpread1-floatingSpecializedBondASWSpread1);
             if (error6>tolerance) {
            Assert.Fail("wrong asw spread for fixed bond:"
                        + "\n  generic  frn rate bond's  asw spread: "
                        + floatingBondASWSpread1
                        + "\n  equivalent specialized bond's asw spread: "
                        + floatingSpecializedBondASWSpread1
                        + "\n  error:                 " + error6
                        + "\n  tolerance:             " + tolerance);
             }
             //FRN bond (Isin: XS0090566539 COE 0 09/24/18)
             //maturity occurs on a business day
             Date floatingBondStartDate2 = new Date(24,Month.September,2004);
             Date floatingBondMaturityDate2 = new Date(24,Month.September,2018);
             Schedule floatingBondSchedule2= new Schedule(floatingBondStartDate2,
                                       floatingBondMaturityDate2,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.ModifiedFollowing, BusinessDayConvention.ModifiedFollowing,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg2 = new IborLeg(floatingBondSchedule2, vars.iborIndex)
            .withPaymentDayCounter(new Actual360())
            .withFixingDays(fixingDays)
            .withSpreads(0.0025)
            .inArrears(inArrears)
            .withPaymentAdjustment(BusinessDayConvention.ModifiedFollowing)
            .withNotionals(vars.faceAmount);
             Date floatingbondRedemption2 = bondCalendar.adjust(floatingBondMaturityDate2, BusinessDayConvention.ModifiedFollowing);
             floatingBondLeg2.Add(new SimpleCashFlow(100.0, floatingbondRedemption2));
             // generic bond
             Bond floatingBond2 = new  Bond(settlementDays, bondCalendar, vars.faceAmount,
                  floatingBondMaturityDate2, floatingBondStartDate2,floatingBondLeg2);
             floatingBond2.setPricingEngine(bondEngine);

             // equivalent specialized floater
             Bond floatingSpecializedBond2 = new FloatingRateBond(settlementDays, vars.faceAmount,
                              floatingBondSchedule2,
                              vars.iborIndex, new Actual360(),
                              BusinessDayConvention.ModifiedFollowing, fixingDays,
                              new List<double>{1},
                              new List<double>{0.0025},
                              new List<double>(), new List<double>(),
                              inArrears,
                              100.0, new Date(24,Month.September,2004));
             floatingSpecializedBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond2.cashflows(), vars.pricer);
             Utils.setCouponPricer(floatingSpecializedBond2.cashflows(), vars.pricer);

             vars.iborIndex.addFixing(new Date(22,Month.March,2007), 0.04013);

             double floatingBondPrice2 = floatingBond2.cleanPrice();
             double floatingSpecializedBondPrice2= floatingSpecializedBond2.cleanPrice();
             AssetSwap floatingBondAssetSwap2= new AssetSwap(payFixedRate,
                                          floatingBond2, floatingBondPrice2,
                                          vars.iborIndex, vars.nonnullspread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             floatingBondAssetSwap2.setPricingEngine(swapEngine);
             AssetSwap floatingSpecializedBondAssetSwap2= new AssetSwap(payFixedRate,
                                                   floatingSpecializedBond2,
                                                   floatingSpecializedBondPrice2,
                                                   vars.iborIndex,
                                                   vars.nonnullspread,
                                                   null,
                                                   vars.iborIndex.dayCounter(),
                                                   parAssetSwap);
             floatingSpecializedBondAssetSwap2.setPricingEngine(swapEngine);
             double floatingBondAssetSwapPrice2 = floatingBondAssetSwap2.fairCleanPrice();
             double floatingSpecializedBondAssetSwapPrice2 =
            floatingSpecializedBondAssetSwap2.fairCleanPrice();
             double error7 =
            Math.Abs(floatingBondAssetSwapPrice2-floatingSpecializedBondAssetSwapPrice2);
             if (error7>tolerance) {
            Assert.Fail("wrong clean price for frnbond:"
                        + "\n  generic frn rate bond's clean price: "
                        + floatingBondAssetSwapPrice2
                        + "\n  equivalent specialized frn  bond's price: "
                        + floatingSpecializedBondAssetSwapPrice2
                        + "\n  error:                 " + error7
                        + "\n  tolerance:             " + tolerance);
             }
             // market executable price as of 4th sept 2007
             double floatingBondMktPrice2 = 101.26;
             AssetSwap floatingBondASW2= new AssetSwap(payFixedRate,
                                    floatingBond2, floatingBondMktPrice2,
                                    vars.iborIndex, vars.spread,
                                    null,
                                    vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             floatingBondASW2.setPricingEngine(swapEngine);
             AssetSwap floatingSpecializedBondASW2= new AssetSwap(payFixedRate,
                                             floatingSpecializedBond2,
                                             floatingBondMktPrice2,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             parAssetSwap);
             floatingSpecializedBondASW2.setPricingEngine(swapEngine);
             double floatingBondASWSpread2 = floatingBondASW2.fairSpread();
             double floatingSpecializedBondASWSpread2 =
            floatingSpecializedBondASW2.fairSpread();
             double error8 =
            Math.Abs(floatingBondASWSpread2-floatingSpecializedBondASWSpread2);
             if (error8>tolerance) {
            Assert.Fail("wrong asw spread for frn bond:"
                        + "\n  generic  frn rate bond's  asw spread: "
                        + floatingBondASWSpread2
                        + "\n  equivalent specialized bond's asw spread: "
                        + floatingSpecializedBondASWSpread2
                        + "\n  error:                 " + error8
                        + "\n  tolerance:             " + tolerance);
             }

             // CMS bond (Isin: XS0228052402 CRDIT 0 8/22/20)
             // maturity doesn't occur on a business day
             Date cmsBondStartDate1 = new Date(22,Month.August,2005);
             Date cmsBondMaturityDate1 = new Date(22,Month.August,2020);
             Schedule cmsBondSchedule1= new Schedule(cmsBondStartDate1,
                                 cmsBondMaturityDate1,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg1 = new CmsLeg(cmsBondSchedule1, vars.swapIndex)
            .withPaymentDayCounter(new Thirty360())
            .withFixingDays(fixingDays)
            .withCaps(0.055)
            .withFloors(0.025)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption1 = bondCalendar.adjust(cmsBondMaturityDate1, BusinessDayConvention.Following);
             cmsBondLeg1.Add(new SimpleCashFlow(100.0, cmsbondRedemption1));
             // generic cms bond
             Bond cmsBond1 = new  Bond(settlementDays, bondCalendar, vars.faceAmount,
                  cmsBondMaturityDate1, cmsBondStartDate1, cmsBondLeg1);
             cmsBond1.setPricingEngine(bondEngine);

             // equivalent specialized cms bond
             Bond cmsSpecializedBond1 = new CmsRateBond(settlementDays, vars.faceAmount, cmsBondSchedule1,
                     vars.swapIndex, new Thirty360(),
                     BusinessDayConvention.Following, fixingDays,
                     new List<double>{1.0}, new List<double>{0.0},
                     new List<double>{0.055}, new List<double>{0.025},
                     inArrears,
                     100.0, new Date(22,Month.August,2005));
             cmsSpecializedBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond1.cashflows(), vars.cmspricer);
             Utils.setCouponPricer(cmsSpecializedBond1.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(18,Month.August,2006), 0.04158);
             double cmsBondPrice1 = cmsBond1.cleanPrice();
             double cmsSpecializedBondPrice1 = cmsSpecializedBond1.cleanPrice();
             AssetSwap cmsBondAssetSwap1= new AssetSwap(payFixedRate,cmsBond1, cmsBondPrice1,
                                    vars.iborIndex, vars.nonnullspread,
                                    null,vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             cmsBondAssetSwap1.setPricingEngine(swapEngine);
             AssetSwap cmsSpecializedBondAssetSwap1= new AssetSwap(payFixedRate,cmsSpecializedBond1,
                                                cmsSpecializedBondPrice1,
                                                vars.iborIndex,
                                                vars.nonnullspread,
                                                null,
                                                vars.iborIndex.dayCounter(),
                                                parAssetSwap);
             cmsSpecializedBondAssetSwap1.setPricingEngine(swapEngine);
             double cmsBondAssetSwapPrice1 = cmsBondAssetSwap1.fairCleanPrice();
             double cmsSpecializedBondAssetSwapPrice1 =
            cmsSpecializedBondAssetSwap1.fairCleanPrice();
             double error9 =
            Math.Abs(cmsBondAssetSwapPrice1-cmsSpecializedBondAssetSwapPrice1);
             if (error9>tolerance) {
            Assert.Fail("wrong clean price for cmsbond:"
                        + "\n  generic bond's clean price: "
                        + cmsBondAssetSwapPrice1
                        + "\n  equivalent specialized cms rate bond's price: "
                        + cmsSpecializedBondAssetSwapPrice1
                        + "\n  error:                 " + error9
                        + "\n  tolerance:             " + tolerance);
             }
             double cmsBondMktPrice1 = 87.02;// market executable price as of 4th sept 2007
             AssetSwap cmsBondASW1= new AssetSwap(payFixedRate,
                              cmsBond1, cmsBondMktPrice1,
                              vars.iborIndex, vars.spread,
                              null,
                              vars.iborIndex.dayCounter(),
                              parAssetSwap);
             cmsBondASW1.setPricingEngine(swapEngine);
             AssetSwap cmsSpecializedBondASW1= new AssetSwap(payFixedRate,
                                          cmsSpecializedBond1,
                                          cmsBondMktPrice1,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             cmsSpecializedBondASW1.setPricingEngine(swapEngine);
             double cmsBondASWSpread1 = cmsBondASW1.fairSpread();
             double cmsSpecializedBondASWSpread1 = cmsSpecializedBondASW1.fairSpread();
             double error10 = Math.Abs(cmsBondASWSpread1-cmsSpecializedBondASWSpread1);
             if (error10>tolerance) {
            Assert.Fail("wrong asw spread for cm bond:"
                        + "\n  generic cms rate bond's  asw spread: "
                        + cmsBondASWSpread1
                        + "\n  equivalent specialized bond's asw spread: "
                        + cmsSpecializedBondASWSpread1
                        + "\n  error:                 " + error10
                        + "\n  tolerance:             " + tolerance);
             }

             //CMS bond (Isin: XS0218766664 ISPIM 0 5/6/15)
             //maturity occurs on a business day
             Date cmsBondStartDate2 = new Date(06,Month.May,2005);
             Date cmsBondMaturityDate2 = new Date(06,Month.May,2015);
             Schedule cmsBondSchedule2= new Schedule(cmsBondStartDate2,
                                 cmsBondMaturityDate2,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg2 = new CmsLeg(cmsBondSchedule2, vars.swapIndex)
            .withPaymentDayCounter(new Thirty360())
            .withFixingDays(fixingDays)
            .withGearings(0.84)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption2 = bondCalendar.adjust(cmsBondMaturityDate2,
                                                      BusinessDayConvention.Following);
             cmsBondLeg2.Add(new SimpleCashFlow(100.0, cmsbondRedemption2));
             // generic bond
             Bond cmsBond2 = new  Bond(settlementDays, bondCalendar, vars.faceAmount,
                  cmsBondMaturityDate2, cmsBondStartDate2, cmsBondLeg2);
             cmsBond2.setPricingEngine(bondEngine);

             // equivalent specialized cms bond
             Bond cmsSpecializedBond2 = new  CmsRateBond(settlementDays, vars.faceAmount, cmsBondSchedule2,
                     vars.swapIndex, new Thirty360(),
                     BusinessDayConvention.Following, fixingDays,
                     new List<double>{0.84}, new List<double>{0.0},
                     new List<double>(), new List<double>(),
                     inArrears,
                     100.0, new Date(06,Month.May,2005));
             cmsSpecializedBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond2.cashflows(), vars.cmspricer);
             Utils.setCouponPricer(cmsSpecializedBond2.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(04,Month.May,2006), 0.04217);
             double cmsBondPrice2 = cmsBond2.cleanPrice();
             double cmsSpecializedBondPrice2 = cmsSpecializedBond2.cleanPrice();
             AssetSwap cmsBondAssetSwap2= new AssetSwap(payFixedRate,cmsBond2, cmsBondPrice2,
                                    vars.iborIndex, vars.nonnullspread,
                                    null,
                                    vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             cmsBondAssetSwap2.setPricingEngine(swapEngine);
             AssetSwap cmsSpecializedBondAssetSwap2= new AssetSwap(payFixedRate,cmsSpecializedBond2,
                                                cmsSpecializedBondPrice2,
                                                vars.iborIndex,
                                                vars.nonnullspread,
                                                null,
                                                vars.iborIndex.dayCounter(),
                                                parAssetSwap);
             cmsSpecializedBondAssetSwap2.setPricingEngine(swapEngine);
             double cmsBondAssetSwapPrice2 = cmsBondAssetSwap2.fairCleanPrice();
             double cmsSpecializedBondAssetSwapPrice2 =
            cmsSpecializedBondAssetSwap2.fairCleanPrice();
             double error11 =
            Math.Abs(cmsBondAssetSwapPrice2-cmsSpecializedBondAssetSwapPrice2);
             if (error11>tolerance) {
            Assert.Fail("wrong clean price for cmsbond:"
                        + "\n  generic  bond's clean price: "
                        + cmsBondAssetSwapPrice2
                        + "\n  equivalent specialized cms rate bond's price: "
                        + cmsSpecializedBondAssetSwapPrice2
                        + "\n  error:                 " + error11
                        + "\n  tolerance:             " + tolerance);
             }
             double cmsBondMktPrice2 = 94.35;// market executable price as of 4th sept 2007
             AssetSwap cmsBondASW2= new AssetSwap(payFixedRate,
                              cmsBond2, cmsBondMktPrice2,
                              vars.iborIndex, vars.spread,
                              null,
                              vars.iborIndex.dayCounter(),
                              parAssetSwap);
             cmsBondASW2.setPricingEngine(swapEngine);
             AssetSwap cmsSpecializedBondASW2= new AssetSwap(payFixedRate,
                                          cmsSpecializedBond2,
                                          cmsBondMktPrice2,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             cmsSpecializedBondASW2.setPricingEngine(swapEngine);
             double cmsBondASWSpread2 = cmsBondASW2.fairSpread();
             double cmsSpecializedBondASWSpread2 = cmsSpecializedBondASW2.fairSpread();
             double error12 = Math.Abs(cmsBondASWSpread2-cmsSpecializedBondASWSpread2);
             if (error12>tolerance) {
            Assert.Fail("wrong asw spread for cm bond:"
                        + "\n  generic cms rate bond's  asw spread: "
                        + cmsBondASWSpread2
                        + "\n  equivalent specialized bond's asw spread: "
                        + cmsSpecializedBondASWSpread2
                        + "\n  error:                 " + error12
                        + "\n  tolerance:             " + tolerance);
             }

              //  Zero-Coupon bond (Isin: DE0004771662 IBRD 0 12/20/15)
              //  maturity doesn't occur on a business day
             Date zeroCpnBondStartDate1 = new Date(19,Month.December,1985);
             Date zeroCpnBondMaturityDate1 = new Date(20,Month.December,2015);
             Date zeroCpnBondRedemption1 = bondCalendar.adjust(zeroCpnBondMaturityDate1,
                                                         BusinessDayConvention.Following);
             List<CashFlow> zeroCpnBondLeg1 = new List<CashFlow>{new SimpleCashFlow(100.0, zeroCpnBondRedemption1)};
             // generic bond
             Bond zeroCpnBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  zeroCpnBondMaturityDate1, zeroCpnBondStartDate1, zeroCpnBondLeg1);
             zeroCpnBond1.setPricingEngine(bondEngine);

             // specialized zerocpn bond
             Bond zeroCpnSpecializedBond1= new ZeroCouponBond(settlementDays, bondCalendar, vars.faceAmount,
                     new Date(20,Month.December,2015),
                     BusinessDayConvention.Following,
                     100.0, new Date(19,Month.December,1985));
             zeroCpnSpecializedBond1.setPricingEngine(bondEngine);

             double zeroCpnBondPrice1 = zeroCpnBond1.cleanPrice();
             double zeroCpnSpecializedBondPrice1 = zeroCpnSpecializedBond1.cleanPrice();
             AssetSwap zeroCpnBondAssetSwap1= new AssetSwap(payFixedRate,zeroCpnBond1,
                                       zeroCpnBondPrice1,
                                       vars.iborIndex, vars.nonnullspread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             zeroCpnBondAssetSwap1.setPricingEngine(swapEngine);
             AssetSwap zeroCpnSpecializedBondAssetSwap1= new AssetSwap(payFixedRate,
                                                   zeroCpnSpecializedBond1,
                                                   zeroCpnSpecializedBondPrice1,
                                                   vars.iborIndex,
                                                   vars.nonnullspread,
                                                   null,
                                                   vars.iborIndex.dayCounter(),
                                                   parAssetSwap);
             zeroCpnSpecializedBondAssetSwap1.setPricingEngine(swapEngine);
             double zeroCpnBondAssetSwapPrice1 = zeroCpnBondAssetSwap1.fairCleanPrice();
             double zeroCpnSpecializedBondAssetSwapPrice1 =
            zeroCpnSpecializedBondAssetSwap1.fairCleanPrice();
             double error13 =
            Math.Abs(zeroCpnBondAssetSwapPrice1-zeroCpnSpecializedBondAssetSwapPrice1);
             if (error13>tolerance) {
            Assert.Fail("wrong clean price for zerocpn bond:"
                        + "\n  generic zero cpn bond's clean price: "
                        + zeroCpnBondAssetSwapPrice1
                        + "\n  specialized equivalent bond's price: "
                        + zeroCpnSpecializedBondAssetSwapPrice1
                        + "\n  error:                 " + error13
                        + "\n  tolerance:             " + tolerance);
             }
             // market executable price as of 4th sept 2007
             double zeroCpnBondMktPrice1 = 72.277;
             AssetSwap zeroCpnBondASW1= new AssetSwap(payFixedRate,
                                 zeroCpnBond1,zeroCpnBondMktPrice1,
                                 vars.iborIndex, vars.spread,
                                 null,
                                 vars.iborIndex.dayCounter(),
                                 parAssetSwap);
             zeroCpnBondASW1.setPricingEngine(swapEngine);
             AssetSwap zeroCpnSpecializedBondASW1= new AssetSwap(payFixedRate,
                                             zeroCpnSpecializedBond1,
                                             zeroCpnBondMktPrice1,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             parAssetSwap);
             zeroCpnSpecializedBondASW1.setPricingEngine(swapEngine);
             double zeroCpnBondASWSpread1 = zeroCpnBondASW1.fairSpread();
             double zeroCpnSpecializedBondASWSpread1 =
            zeroCpnSpecializedBondASW1.fairSpread();
             double error14 =
            Math.Abs(zeroCpnBondASWSpread1-zeroCpnSpecializedBondASWSpread1);
             if (error14>tolerance) {
            Assert.Fail("wrong asw spread for zeroCpn bond:"
                        + "\n  generic zeroCpn bond's  asw spread: "
                        + zeroCpnBondASWSpread1
                        + "\n  equivalent specialized bond's asw spread: "
                        + zeroCpnSpecializedBondASWSpread1
                        + "\n  error:                 " + error14
                        + "\n  tolerance:             " + tolerance);
             }

              //  Zero Coupon bond (Isin: IT0001200390 ISPIM 0 02/17/28)
              //  maturity doesn't occur on a business day
             Date zeroCpnBondStartDate2 = new Date(17,Month.February,1998);
             Date zeroCpnBondMaturityDate2 = new Date(17,Month.February,2028);
             Date zerocpbondRedemption2 = bondCalendar.adjust(zeroCpnBondMaturityDate2,
                                                         BusinessDayConvention.Following);
             List<CashFlow> zeroCpnBondLeg2 = new List<CashFlow>{new SimpleCashFlow(100.0, zerocpbondRedemption2)};
             // generic bond
             Bond zeroCpnBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  zeroCpnBondMaturityDate2, zeroCpnBondStartDate2, zeroCpnBondLeg2);
             zeroCpnBond2.setPricingEngine(bondEngine);

             // specialized zerocpn bond
             Bond zeroCpnSpecializedBond2 = new ZeroCouponBond(settlementDays, bondCalendar, vars.faceAmount,
                        new Date(17,Month.February,2028),
                        BusinessDayConvention.Following,
                        100.0, new Date(17,Month.February,1998));
             zeroCpnSpecializedBond2.setPricingEngine(bondEngine);

             double zeroCpnBondPrice2 = zeroCpnBond2.cleanPrice();
             double zeroCpnSpecializedBondPrice2 = zeroCpnSpecializedBond2.cleanPrice();

             AssetSwap zeroCpnBondAssetSwap2= new AssetSwap(payFixedRate,zeroCpnBond2,
                                       zeroCpnBondPrice2,
                                       vars.iborIndex, vars.nonnullspread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             zeroCpnBondAssetSwap2.setPricingEngine(swapEngine);
             AssetSwap zeroCpnSpecializedBondAssetSwap2= new AssetSwap(payFixedRate,
                                                   zeroCpnSpecializedBond2,
                                                   zeroCpnSpecializedBondPrice2,
                                                   vars.iborIndex,
                                                   vars.nonnullspread,
                                                   null,
                                                   vars.iborIndex.dayCounter(),
                                                   parAssetSwap);
             zeroCpnSpecializedBondAssetSwap2.setPricingEngine(swapEngine);
             double zeroCpnBondAssetSwapPrice2 = zeroCpnBondAssetSwap2.fairCleanPrice();
             double zeroCpnSpecializedBondAssetSwapPrice2 =
                                    zeroCpnSpecializedBondAssetSwap2.fairCleanPrice();
             double error15 = Math.Abs(zeroCpnBondAssetSwapPrice2
                                 -zeroCpnSpecializedBondAssetSwapPrice2);
             if (error15>tolerance) {
            Assert.Fail("wrong clean price for zerocpn bond:"
                        + "\n  generic zero cpn bond's clean price: "
                        + zeroCpnBondAssetSwapPrice2
                        + "\n  equivalent specialized bond's price: "
                        + zeroCpnSpecializedBondAssetSwapPrice2
                        + "\n  error:                 " + error15
                        + "\n  tolerance:             " + tolerance);
             }
             // market executable price as of 4th sept 2007
             double zeroCpnBondMktPrice2 = 72.277;
             AssetSwap zeroCpnBondASW2= new AssetSwap(payFixedRate,
                                 zeroCpnBond2,zeroCpnBondMktPrice2,
                                 vars.iborIndex, vars.spread,
                                 null,
                                 vars.iborIndex.dayCounter(),
                                 parAssetSwap);
             zeroCpnBondASW2.setPricingEngine(swapEngine);
             AssetSwap zeroCpnSpecializedBondASW2= new AssetSwap(payFixedRate,
                                             zeroCpnSpecializedBond2,
                                             zeroCpnBondMktPrice2,
                                             vars.iborIndex, vars.spread,
                                             null,
                                             vars.iborIndex.dayCounter(),
                                             parAssetSwap);
             zeroCpnSpecializedBondASW2.setPricingEngine(swapEngine);
             double zeroCpnBondASWSpread2 = zeroCpnBondASW2.fairSpread();
             double zeroCpnSpecializedBondASWSpread2 =
            zeroCpnSpecializedBondASW2.fairSpread();
             double error16 =
            Math.Abs(zeroCpnBondASWSpread2-zeroCpnSpecializedBondASWSpread2);
             if (error16>tolerance) {
            Assert.Fail("wrong asw spread for zeroCpn bond:"
                        + "\n  generic zeroCpn bond's  asw spread: "
                        + zeroCpnBondASWSpread2
                        + "\n  equivalent specialized bond's asw spread: "
                        + zeroCpnSpecializedBondASWSpread2
                        + "\n  error:                 " + error16
                        + "\n  tolerance:             " + tolerance);
             }
        }
Ejemplo n.º 19
0
        public AssetSwap(bool parAssetSwap,
                       Bond bond,
                       double bondCleanPrice,
                       double nonParRepayment,
                       double gearing,
                       IborIndex iborIndex,
                       double spread = 0.0,
                       DayCounter floatingDayCount = null,
                       Date dealMaturity = null,
                       bool payBondCoupon = false)
            : base(2)
        {
            bond_ = bond;
             bondCleanPrice_ = bondCleanPrice;
             nonParRepayment_ = nonParRepayment;
             spread_ = spread;
             parSwap_ = parAssetSwap;

             Schedule tempSch = new Schedule(bond_.settlementDate(),
                                         bond_.maturityDate(),
                                         iborIndex.tenor(),
                                         iborIndex.fixingCalendar(),
                                         iborIndex.businessDayConvention(),
                                         iborIndex.businessDayConvention(),
                                         DateGeneration.Rule.Backward,
                                         false); // endOfMonth

             if (dealMaturity == null)
            dealMaturity = bond_.maturityDate();

             Utils.QL_REQUIRE( dealMaturity <= tempSch.dates().Last(), () =>
                     "deal maturity " + dealMaturity +
                     " cannot be later than (adjusted) bond maturity " +
                     tempSch.dates().Last());
             Utils.QL_REQUIRE( dealMaturity > tempSch.dates()[0], () =>
                     "deal maturity " + dealMaturity +
                     " must be later than swap start date " +
                     tempSch.dates()[0]);

             // the following might become an input parameter
             BusinessDayConvention paymentAdjustment = BusinessDayConvention.Following;

             Date finalDate = tempSch.calendar().adjust(dealMaturity, paymentAdjustment);
             Schedule schedule = tempSch.until(finalDate);

             // bondCleanPrice must be the (forward) clean price
             // at the floating schedule start date
             upfrontDate_ = schedule.startDate();
             double dirtyPrice = bondCleanPrice_ +
                             bond_.accruedAmount(upfrontDate_);

             double notional = bond_.notional(upfrontDate_);
             /* In the market asset swap, the bond is purchased in return for
            payment of the full price. The notional of the floating leg is
            then scaled by the full price. */
             if (!parSwap_)
            notional *= dirtyPrice / 100.0;

             if (floatingDayCount == null)
            legs_[1] = new IborLeg(schedule, iborIndex)
                  .withSpreads(spread)
                  .withGearings(gearing)
                  .withNotionals(notional)
                  .withPaymentAdjustment(paymentAdjustment);
             else
            legs_[1] = new IborLeg(schedule, iborIndex)
                  .withSpreads(spread)
                  .withGearings(gearing)
                  .withPaymentDayCounter(floatingDayCount)
                  .withNotionals(notional)
                  .withPaymentAdjustment(paymentAdjustment);

             foreach (CashFlow c in legs_[1])
            c.registerWith(update);

             List<CashFlow> bondLeg = bond_.cashflows();
             // skip bond redemption
             int i;
             for (i = 0; i < bondLeg.Count && bondLeg[i].date() <= dealMaturity; ++i)
             {
            // whatever might be the choice for the discounting engine
            // bond flows on upfrontDate_ must be discarded
            bool upfrontDateBondFlows = false;
            if (!bondLeg[i].hasOccurred(upfrontDate_, upfrontDateBondFlows))
               legs_[0].Add(bondLeg[i]);
             }
             // if the first skipped cashflow is not the redemption
             // and it is a coupon then add the accrued coupon
             if (i < bondLeg.Count - 1)
             {
            Coupon c = bondLeg[i] as Coupon;
            if (c != null)
            {
               CashFlow accruedCoupon = new SimpleCashFlow(c.accruedAmount(dealMaturity), finalDate);
               legs_[0].Add(accruedCoupon);
            }
             }
             // add the nonParRepayment_
             CashFlow nonParRepaymentFlow = new SimpleCashFlow(nonParRepayment_, finalDate);
             legs_[0].Add(nonParRepaymentFlow);

             Utils.QL_REQUIRE( !legs_[0].empty(), () => "empty bond leg to start with" );

             // special flows
             if (parSwap_)
             {
            // upfront on the floating leg
            double upfront = (dirtyPrice - 100.0) / 100.0 * notional;
            CashFlow upfrontCashFlow = new SimpleCashFlow(upfront, upfrontDate_);
            legs_[1].Insert(0, upfrontCashFlow);
            // backpayment on the floating leg
            // (accounts for non-par redemption, if any)
            double backPayment = notional;
            CashFlow backPaymentCashFlow = new SimpleCashFlow(backPayment, finalDate);
            legs_[1].Add(backPaymentCashFlow);
             }
             else
             {
            // final notional exchange
            CashFlow finalCashFlow = new SimpleCashFlow(notional, finalDate);
            legs_[1].Add(finalCashFlow);
             }

             Utils.QL_REQUIRE( !legs_[0].empty(), () => "empty bond leg" );

             foreach (CashFlow c in legs_[0])
            c.registerWith(update);

             if (payBondCoupon)
             {
            payer_[0] = -1.0;
            payer_[1] = +1.0;
             }
             else
             {
            payer_[0] = +1.0;
            payer_[1] = -1.0;
             }
        }
Ejemplo n.º 20
0
        public void testGenericBondImplied()
        {
            // Testing implied generic-bond value against asset-swap fair price with null spread...

             CommonVars vars = new CommonVars();

             Calendar bondCalendar = new TARGET();
             int settlementDays = 3;
             int fixingDays = 2;
             bool payFixeddouble = true;
             bool parAssetSwap = true;
             bool inArrears = false;

             // Fixed Underlying bond (Isin: DE0001135275 DBR 4 01/04/37)
             // maturity doesn't occur on a business day
             Date fixedBondStartDate1 =new Date(4,Month.January,2005);
             Date fixedBondMaturityDate1 =new Date(4,Month.January,2037);
             Schedule fixedBondSchedule1 = new Schedule(fixedBondStartDate1,
                                    fixedBondMaturityDate1,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg1 = new FixedRateLeg(fixedBondSchedule1)
            .withCouponRates(0.04, new ActualActual(ActualActual.Convention.ISDA))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption1 = bondCalendar.adjust(fixedBondMaturityDate1,
                                                         BusinessDayConvention.Following);
             fixedBondLeg1.Add((new SimpleCashFlow(100.0, fixedbondRedemption1)));
             Bond fixedBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  fixedBondMaturityDate1, fixedBondStartDate1, fixedBondLeg1);
             IPricingEngine bondEngine = new DiscountingBondEngine(vars.termStructure);
             IPricingEngine swapEngine= new DiscountingSwapEngine(vars.termStructure);
             fixedBond1.setPricingEngine(bondEngine);

             double fixedBondPrice1 = fixedBond1.cleanPrice();
             AssetSwap fixedBondAssetSwap1 = new AssetSwap(payFixeddouble,
                                       fixedBond1, fixedBondPrice1,
                                       vars.iborIndex, vars.spread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             fixedBondAssetSwap1.setPricingEngine(swapEngine);
             double fixedBondAssetSwapPrice1 = fixedBondAssetSwap1.fairCleanPrice();
             double tolerance = 1.0e-13;
             double error1 = Math.Abs(fixedBondAssetSwapPrice1-fixedBondPrice1);

             if (error1>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for fixed bond:"
                        + "\n  bond's clean price:    " + fixedBondPrice1
                        + "\n  asset swap fair price: " + fixedBondAssetSwapPrice1
                        + "\n  error:                 " + error1
                        + "\n  tolerance:             " + tolerance);
             }

             // Fixed Underlying bond (Isin: IT0006527060 IBRD 5 02/05/19)
             // maturity occurs on a business day
             Date fixedBondStartDate2 =new Date(5,Month.February,2005);
             Date fixedBondMaturityDate2 =new Date(5,Month.February,2019);
             Schedule fixedBondSchedule2= new Schedule(fixedBondStartDate2,
                                    fixedBondMaturityDate2,
                                    new Period(Frequency.Annual), bondCalendar,
                                    BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                    DateGeneration.Rule.Backward, false);
             List<CashFlow> fixedBondLeg2 = new FixedRateLeg(fixedBondSchedule2)
            .withCouponRates(0.05, new Thirty360(Thirty360.Thirty360Convention.BondBasis))
            .withNotionals(vars.faceAmount);
             Date fixedbondRedemption2 = bondCalendar.adjust(fixedBondMaturityDate2,BusinessDayConvention.Following);
             fixedBondLeg2.Add(new SimpleCashFlow(100.0, fixedbondRedemption2));
             Bond fixedBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  fixedBondMaturityDate2, fixedBondStartDate2, fixedBondLeg2);
             fixedBond2.setPricingEngine(bondEngine);

             double fixedBondPrice2 = fixedBond2.cleanPrice();
             AssetSwap fixedBondAssetSwap2= new AssetSwap(payFixeddouble,
                                       fixedBond2, fixedBondPrice2,
                                       vars.iborIndex, vars.spread,
                                       null,
                                       vars.iborIndex.dayCounter(),
                                       parAssetSwap);
             fixedBondAssetSwap2.setPricingEngine(swapEngine);
             double fixedBondAssetSwapPrice2 = fixedBondAssetSwap2.fairCleanPrice();
             double error2 = Math.Abs(fixedBondAssetSwapPrice2-fixedBondPrice2);

             if (error2>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for fixed bond:"
                        + "\n  bond's clean price:    " + fixedBondPrice2
                        + "\n  asset swap fair price: " + fixedBondAssetSwapPrice2
                        + "\n  error:                 " + error2
                        + "\n  tolerance:             " + tolerance);
             }

             // FRN Underlying bond (Isin: IT0003543847 ISPIM 0 09/29/13)
             // maturity doesn't occur on a business day
             Date floatingBondStartDate1 =new Date(29,Month.September,2003);
             Date floatingBondMaturityDate1 =new Date(29,Month.September,2013);
             Schedule floatingBondSchedule1 = new Schedule(floatingBondStartDate1,
                                       floatingBondMaturityDate1,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg1 = new IborLeg(floatingBondSchedule1, vars.iborIndex)
            .withPaymentDayCounter(new Actual360())
            .withFixingDays(fixingDays)
            .withSpreads(0.0056)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date floatingbondRedemption1 =
            bondCalendar.adjust(floatingBondMaturityDate1, BusinessDayConvention.Following);
             floatingBondLeg1.Add(new SimpleCashFlow(100.0, floatingbondRedemption1));
             Bond floatingBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  floatingBondMaturityDate1, floatingBondStartDate1, floatingBondLeg1);
             floatingBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond1.cashflows(), vars.pricer);
             vars.iborIndex.addFixing(new Date(27,Month.March,2007), 0.0402);
             double floatingBondPrice1 = floatingBond1.cleanPrice();
             AssetSwap floatingBondAssetSwap1= new AssetSwap(payFixeddouble,
                                          floatingBond1, floatingBondPrice1,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             floatingBondAssetSwap1.setPricingEngine(swapEngine);
             double floatingBondAssetSwapPrice1 = floatingBondAssetSwap1.fairCleanPrice();
             double error3 = Math.Abs(floatingBondAssetSwapPrice1-floatingBondPrice1);

             if (error3>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for floater:"
                        + "\n  bond's clean price:    " + floatingBondPrice1
                        + "\n  asset swap fair price: " +
                        floatingBondAssetSwapPrice1
                        + "\n  error:                 " + error3
                        + "\n  tolerance:             " + tolerance);
             }

             // FRN Underlying bond (Isin: XS0090566539 COE 0 09/24/18)
             // maturity occurs on a business day
             Date floatingBondStartDate2 =new Date(24,Month.September,2004);
             Date floatingBondMaturityDate2 =new Date(24,Month.September,2018);
             Schedule floatingBondSchedule2 = new Schedule(floatingBondStartDate2,
                                       floatingBondMaturityDate2,
                                       new Period(Frequency.Semiannual), bondCalendar,
                                       BusinessDayConvention.ModifiedFollowing, BusinessDayConvention.ModifiedFollowing,
                                       DateGeneration.Rule.Backward, false);
             List<CashFlow> floatingBondLeg2 = new IborLeg(floatingBondSchedule2, vars.iborIndex)
            .withPaymentDayCounter(new Actual360())
            .withFixingDays(fixingDays)
            .withSpreads(0.0025)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount)
            .withPaymentAdjustment(BusinessDayConvention.ModifiedFollowing);
             Date floatingbondRedemption2 =
            bondCalendar.adjust(floatingBondMaturityDate2, BusinessDayConvention.ModifiedFollowing);
             floatingBondLeg2.Add(new SimpleCashFlow(100.0, floatingbondRedemption2));
             Bond floatingBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  floatingBondMaturityDate2, floatingBondStartDate2, floatingBondLeg2);
             floatingBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(floatingBond2.cashflows(), vars.pricer);
             vars.iborIndex.addFixing(new Date(22,Month.March,2007), 0.04013);
             double currentCoupon=0.04013+0.0025;
             double floatingCurrentCoupon= floatingBond2.nextCouponRate();
             double error4= Math.Abs(floatingCurrentCoupon-currentCoupon);
             if (error4>tolerance) {
            Assert.Fail("wrong current coupon is returned for floater bond:"
                        + "\n  bond's calculated current coupon:      " +
                        currentCoupon
                        + "\n  current coupon asked to the bond: " +
                        floatingCurrentCoupon
                        + "\n  error:                 " + error4
                        + "\n  tolerance:             " + tolerance);
             }

             double floatingBondPrice2 = floatingBond2.cleanPrice();
             AssetSwap floatingBondAssetSwap2= new AssetSwap(payFixeddouble,
                                          floatingBond2, floatingBondPrice2,
                                          vars.iborIndex, vars.spread,
                                          null,
                                          vars.iborIndex.dayCounter(),
                                          parAssetSwap);
             floatingBondAssetSwap2.setPricingEngine(swapEngine);
             double floatingBondAssetSwapPrice2 = floatingBondAssetSwap2.fairCleanPrice();
             double error5 = Math.Abs(floatingBondAssetSwapPrice2-floatingBondPrice2);

             if (error5>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for floater:"
                        + "\n  bond's clean price:    " + floatingBondPrice2
                        + "\n  asset swap fair price: " +
                        floatingBondAssetSwapPrice2
                        + "\n  error:                 " + error5
                        + "\n  tolerance:             " + tolerance);
             }

             // CMS Underlying bond (Isin: XS0228052402 CRDIT 0 8/22/20)
             // maturity doesn't occur on a business day
             Date cmsBondStartDate1 =new Date(22,Month.August,2005);
             Date cmsBondMaturityDate1 =new Date(22,Month.August,2020);
             Schedule cmsBondSchedule1= new Schedule(cmsBondStartDate1,
                                 cmsBondMaturityDate1,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg1 = new CmsLeg(cmsBondSchedule1, vars.swapIndex)
            .withFixingDays(fixingDays)
            .withPaymentDayCounter(new Thirty360())
            .withCaps(0.055)
            .withFloors(0.025)
            .inArrears(inArrears)
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption1 = bondCalendar.adjust(cmsBondMaturityDate1, BusinessDayConvention.Following);
             cmsBondLeg1.Add( new SimpleCashFlow(100.0, cmsbondRedemption1));
             Bond cmsBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  cmsBondMaturityDate1, cmsBondStartDate1, cmsBondLeg1);
             cmsBond1.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond1.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(18,Month.August,2006), 0.04158);
             double cmsBondPrice1 = cmsBond1.cleanPrice();
             AssetSwap cmsBondAssetSwap1 = new AssetSwap(payFixeddouble,
                                    cmsBond1, cmsBondPrice1,
                                    vars.iborIndex, vars.spread,
                                    null,
                                    vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             cmsBondAssetSwap1.setPricingEngine(swapEngine);
             double cmsBondAssetSwapPrice1 = cmsBondAssetSwap1.fairCleanPrice();
             double error6 = Math.Abs(cmsBondAssetSwapPrice1-cmsBondPrice1);

             if (error6>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for cms bond:"
                        + "\n  bond's clean price:    " + cmsBondPrice1
                        + "\n  asset swap fair price: " + cmsBondAssetSwapPrice1
                        + "\n  error:                 " + error6
                        + "\n  tolerance:             " + tolerance);
             }

             // CMS Underlying bond (Isin: XS0218766664 ISPIM 0 5/6/15)
             // maturity occurs on a business day
             Date cmsBondStartDate2 =new Date(06,Month.May,2005);
             Date cmsBondMaturityDate2 =new Date(06,Month.May,2015);
             Schedule cmsBondSchedule2= new Schedule(cmsBondStartDate2,
                                 cmsBondMaturityDate2,
                                 new Period(Frequency.Annual), bondCalendar,
                                 BusinessDayConvention.Unadjusted, BusinessDayConvention.Unadjusted,
                                 DateGeneration.Rule.Backward, false);
             List<CashFlow> cmsBondLeg2 = new CmsLeg(cmsBondSchedule2, vars.swapIndex)
            .withFixingDays(fixingDays)
            .withGearings(0.84)
            .inArrears(inArrears)
            .withPaymentDayCounter(new Thirty360())
            .withNotionals(vars.faceAmount);
             Date cmsbondRedemption2 = bondCalendar.adjust(cmsBondMaturityDate2,BusinessDayConvention.Following);
             cmsBondLeg2.Add(new SimpleCashFlow(100.0, cmsbondRedemption2));
             Bond cmsBond2 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  cmsBondMaturityDate2, cmsBondStartDate2, cmsBondLeg2);
             cmsBond2.setPricingEngine(bondEngine);

             Utils.setCouponPricer(cmsBond2.cashflows(), vars.cmspricer);
             vars.swapIndex.addFixing(new Date(04,Month.May,2006), 0.04217);
             double cmsBondPrice2 = cmsBond2.cleanPrice();
             AssetSwap cmsBondAssetSwap2= new AssetSwap(payFixeddouble,
                                    cmsBond2, cmsBondPrice2,
                                    vars.iborIndex, vars.spread,
                                    null,
                                    vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             cmsBondAssetSwap2.setPricingEngine(swapEngine);
             double cmsBondAssetSwapPrice2 = cmsBondAssetSwap2.fairCleanPrice();
             double error7 = Math.Abs(cmsBondAssetSwapPrice2-cmsBondPrice2);

             if (error7>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for cms bond:"
                        + "\n  bond's clean price:    " + cmsBondPrice2
                        + "\n  asset swap fair price: " + cmsBondAssetSwapPrice2
                        + "\n  error:                 " + error7
                        + "\n  tolerance:             " + tolerance);
             }

             // Zero Coupon bond (Isin: DE0004771662 IBRD 0 12/20/15)
             // maturity doesn't occur on a business day
             Date zeroCpnBondStartDate1 =new Date(19,Month.December,1985);
             Date zeroCpnBondMaturityDate1 =new Date(20,Month.December,2015);
             Date zeroCpnBondRedemption1 = bondCalendar.adjust(zeroCpnBondMaturityDate1,BusinessDayConvention.Following);
             List<CashFlow>zeroCpnBondLeg1 = new List<CashFlow>{new SimpleCashFlow(100.0, zeroCpnBondRedemption1)};
             Bond zeroCpnBond1 = new Bond(settlementDays, bondCalendar, vars.faceAmount,
                  zeroCpnBondMaturityDate1, zeroCpnBondStartDate1, zeroCpnBondLeg1);
             zeroCpnBond1.setPricingEngine(bondEngine);

             double zeroCpnBondPrice1 = zeroCpnBond1.cleanPrice();
             AssetSwap zeroCpnAssetSwap1 = new AssetSwap(payFixeddouble,
                                    zeroCpnBond1, zeroCpnBondPrice1,
                                    vars.iborIndex, vars.spread,
                                    null,
                                    vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             zeroCpnAssetSwap1.setPricingEngine(swapEngine);
             double zeroCpnBondAssetSwapPrice1 = zeroCpnAssetSwap1.fairCleanPrice();
             double error8 = Math.Abs(zeroCpnBondAssetSwapPrice1-zeroCpnBondPrice1);

             if (error8>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for zero cpn bond:"
                        + "\n  bond's clean price:    " + zeroCpnBondPrice1
                        + "\n  asset swap fair price: " + zeroCpnBondAssetSwapPrice1
                        + "\n  error:                 " + error8
                        + "\n  tolerance:             " + tolerance);
             }

             // Zero Coupon bond (Isin: IT0001200390 ISPIM 0 02/17/28)
             // maturity occurs on a business day
             Date zeroCpnBondStartDate2 =new Date(17,Month.February,1998);
             Date zeroCpnBondMaturityDate2 =new Date(17,Month.February,2028);
             Date zerocpbondRedemption2 = bondCalendar.adjust(zeroCpnBondMaturityDate2,BusinessDayConvention.Following);
             List<CashFlow>zeroCpnBondLeg2 = new List<CashFlow>{new SimpleCashFlow(100.0, zerocpbondRedemption2)};
             Bond zeroCpnBond2 = new  Bond(settlementDays, bondCalendar, vars.faceAmount,
                  zeroCpnBondMaturityDate2, zeroCpnBondStartDate2, zeroCpnBondLeg2);
             zeroCpnBond2.setPricingEngine(bondEngine);

             double zeroCpnBondPrice2 = zeroCpnBond2.cleanPrice();
             AssetSwap zeroCpnAssetSwap2= new AssetSwap(payFixeddouble,
                                    zeroCpnBond2, zeroCpnBondPrice2,
                                    vars.iborIndex, vars.spread,
                                    null,
                                    vars.iborIndex.dayCounter(),
                                    parAssetSwap);
             zeroCpnAssetSwap2.setPricingEngine(swapEngine);
             double zeroCpnBondAssetSwapPrice2 = zeroCpnAssetSwap2.fairCleanPrice();
             double error9 = Math.Abs(cmsBondAssetSwapPrice2-cmsBondPrice2);

             if (error9>tolerance) {
            Assert.Fail("wrong zero spread asset swap price for zero cpn bond:"
                        + "\n  bond's clean price:    " + zeroCpnBondPrice2
                        + "\n  asset swap fair price: " + zeroCpnBondAssetSwapPrice2
                        + "\n  error:                 " + error9
                        + "\n  tolerance:             " + tolerance);
             }
        }
Ejemplo n.º 21
0
        public CPISwap(Type type,
                       double nominal,
                       bool subtractInflationNominal,
                       // float+spread leg
                       double spread,
                       DayCounter floatDayCount,
                       Schedule floatSchedule,
                       BusinessDayConvention floatPaymentRoll,
                       int fixingDays,
                       IborIndex floatIndex,
                       // fixed x inflation leg
                       double fixedRate,
                       double baseCPI,
                       DayCounter fixedDayCount,
                       Schedule fixedSchedule,
                       BusinessDayConvention fixedPaymentRoll,
                       Period observationLag,
                       ZeroInflationIndex fixedIndex,
                       InterpolationType observationInterpolation = InterpolationType.AsIndex,
                       double?inflationNominal = null)
            : base(2)
        {
            type_    = type;
            nominal_ = nominal;
            subtractInflationNominal_ = subtractInflationNominal;
            spread_                   = spread;
            floatDayCount_            = floatDayCount;
            floatSchedule_            = floatSchedule;
            floatPaymentRoll_         = floatPaymentRoll;
            fixingDays_               = fixingDays;
            floatIndex_               = floatIndex;
            fixedRate_                = fixedRate;
            baseCPI_                  = baseCPI;
            fixedDayCount_            = fixedDayCount;
            fixedSchedule_            = fixedSchedule;
            fixedPaymentRoll_         = fixedPaymentRoll;
            fixedIndex_               = fixedIndex;
            observationLag_           = observationLag;
            observationInterpolation_ = observationInterpolation;

            Utils.QL_REQUIRE(floatSchedule_.Count > 0, () => "empty float schedule");
            Utils.QL_REQUIRE(fixedSchedule_.Count > 0, () => "empty fixed schedule");
            // todo if roll!=unadjusted then need calendars ...

            inflationNominal_ = inflationNominal ?? nominal_;

            List <CashFlow> floatingLeg;

            if (floatSchedule_.Count > 1)
            {
                floatingLeg = new IborLeg(floatSchedule_, floatIndex_)
                              .withFixingDays(fixingDays_)
                              .withPaymentDayCounter(floatDayCount_)
                              .withSpreads(spread_)
                              .withNotionals(nominal_)
                              .withPaymentAdjustment(floatPaymentRoll_);
            }
            else
            {
                floatingLeg = new List <CashFlow>();
            }

            if (floatSchedule_.Count == 1 ||
                !subtractInflationNominal_ ||
                (subtractInflationNominal && Math.Abs(nominal_ - inflationNominal_) > 0.00001)
                )
            {
                Date payNotional;
                if (floatSchedule_.Count == 1)
                {
                    // no coupons
                    payNotional = floatSchedule_[0];
                    payNotional = floatSchedule_.calendar().adjust(payNotional, floatPaymentRoll_);
                }
                else
                {
                    // use the pay date of the last coupon
                    payNotional = floatingLeg.Last().date();
                }

                double   floatAmount = subtractInflationNominal_ ? nominal_ - inflationNominal_ : nominal_;
                CashFlow nf          = new SimpleCashFlow(floatAmount, payNotional);
                floatingLeg.Add(nf);
            }

            // a CPIleg know about zero legs and inclusion of base inflation notional
            List <CashFlow> cpiLeg = new CPILeg(fixedSchedule_, fixedIndex_, baseCPI_, observationLag_)
                                     .withFixedRates(fixedRate_)
                                     .withPaymentDayCounter(fixedDayCount_)
                                     .withObservationInterpolation(observationInterpolation_)
                                     .withSubtractInflationNominal(subtractInflationNominal_)
                                     .withNotionals(inflationNominal_)
                                     .withPaymentAdjustment(fixedPaymentRoll_);

            foreach (CashFlow cashFlow in cpiLeg)
            {
                cashFlow.registerWith(update);
            }

            if (floatingLeg.Count > 0)
            {
                foreach (CashFlow cashFlow in floatingLeg)
                {
                    cashFlow.registerWith(update);
                }
            }

            legs_[0] = cpiLeg;
            legs_[1] = floatingLeg;


            if (type_ == Type.Payer)
            {
                payer_[0] = 1.0;
                payer_[1] = -1.0;
            }
            else
            {
                payer_[0] = -1.0;
                payer_[1] = 1.0;
            }
        }