public virtual void test_presentValue_zspread() { CurrencyAmount pvComputed = PRICER.presentValueWithZSpread(BILL, PROVIDER, Z_SPREAD, CompoundedRateType.CONTINUOUS, 0); double pvExpected = DSC_FACTORS_ISSUER.discountFactor(MATURITY_DATE) * NOTIONAL.Amount * Math.Exp(-Z_SPREAD * DSC_FACTORS_ISSUER.relativeYearFraction(MATURITY_DATE)); assertEquals(pvComputed.Currency, EUR); assertEquals(pvComputed.Amount, pvExpected, TOLERANCE_PV); }
//------------------------------------------------------------------------- public virtual void test_presentValueZSpread_settle_before_val() { CurrencyAmount pvComputed = PRICER_TRADE.presentValueWithZSpread(BILL_TRADE_SETTLE_BEFORE_VAL, PROVIDER, Z_SPREAD, CompoundedRateType.CONTINUOUS, 0); CurrencyAmount pvExpected = PRICER_PRODUCT.presentValueWithZSpread(BILL_PRODUCT.resolve(REF_DATA), PROVIDER, Z_SPREAD, CompoundedRateType.CONTINUOUS, 0).multipliedBy(QUANTITY); assertEquals(pvComputed.Currency, EUR); assertEquals(pvComputed.Amount, pvExpected.Amount, TOLERANCE_PV); MultiCurrencyAmount ceComputed = PRICER_TRADE.currencyExposureWithZSpread(BILL_TRADE_SETTLE_BEFORE_VAL, PROVIDER, Z_SPREAD, CompoundedRateType.CONTINUOUS, 0); assertEquals(ceComputed.Currencies.size(), 1); assertTrue(ceComputed.contains(EUR)); assertEquals(ceComputed.getAmount(EUR).Amount, pvExpected.Amount, TOLERANCE_PV); }
/// <summary> /// Calculates the present value of a bill trade with z-spread. /// <para> /// If the settlement details are provided, the present value is the sum of the underlying product's present value /// multiplied by the quantity and the present value of the settlement payment if still due at the valuation date. /// If not it is the underlying product's present value multiplied by the quantity. /// </para> /// <para> /// The z-spread is a parallel shift applied to continuously compounded rates or periodic compounded rates of /// the issuer discounting curve. The z-spread is applied only on the legal entity curve, not on the repo curve used /// for the settlement amount. /// /// </para> /// </summary> /// <param name="trade"> the trade </param> /// <param name="provider"> the discounting provider </param> /// <param name="zSpread"> the z-spread </param> /// <param name="compoundedRateType"> the compounded rate type </param> /// <param name="periodsPerYear"> the number of periods per year </param> /// <returns> the present value </returns> public virtual CurrencyAmount presentValueWithZSpread(ResolvedBillTrade trade, LegalEntityDiscountingProvider provider, double zSpread, CompoundedRateType compoundedRateType, int periodsPerYear) { if (provider.ValuationDate.isAfter(trade.Product.Notional.Date)) { return(CurrencyAmount.of(trade.Product.Currency, 0.0d)); } CurrencyAmount pvProduct = productPricer.presentValueWithZSpread(trade.Product, provider, zSpread, compoundedRateType, periodsPerYear).multipliedBy(trade.Quantity); if (trade.Settlement.Present) { RepoCurveDiscountFactors repoDf = DiscountingBillProductPricer.repoCurveDf(trade.Product, provider); CurrencyAmount pvSettle = paymentPricer.presentValue(trade.Settlement.get(), repoDf.DiscountFactors); return(pvProduct.plus(pvSettle)); } return(pvProduct); }