private void calibration_market_quote_sensitivity_check(
      Function<MarketData, ImmutableRatesProvider> calibrator, double shift) {

    double notional = 100_000_000.0;
    double fx = 1.1111;
    double fxPts = 0.0012;
    FxSwapTrade trade =
        EUR_USD.toTrade(
            VAL_DATE, Period.ofWeeks(6), Period.ofMonths(5), BuySell.BUY, notional, fx, fxPts);
    ImmutableRatesProvider result =
        CALIBRATOR.calibrate(CURVE_GROUP_CONFIG, VAL_DATE, ALL_QUOTES, TS);
    PointSensitivities pts = FX_PRICER.presentValueSensitivity(trade.getProduct(), result);
    CurveCurrencyParameterSensitivities ps = result.curveParameterSensitivity(pts);
    CurveCurrencyParameterSensitivities mqs = MQC.sensitivity(ps, result);
    double pvUsd = FX_PRICER.presentValue(trade.getProduct(), result).getAmount(USD).getAmount();
    double pvEur = FX_PRICER.presentValue(trade.getProduct(), result).getAmount(EUR).getAmount();
    double[] mqsUsd1Computed =
        mqs.getSensitivity(USD_DSCON_CURVE_NAME, USD).getSensitivity().toArray();
    for (int i = 0; i < USD_DSC_NB_NODES; i++) {
      Map<MarketDataKey<?>, Object> map = new HashMap<>(ALL_QUOTES.getValues());
      map.put(
          QuoteKey.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[i])),
          USD_DSC_MARKET_QUOTES[i] + shift);
      ImmutableMarketData marketData = ImmutableMarketData.of(map);
      ImmutableRatesProvider rpShifted = calibrator.apply(marketData);
      double pvS = FX_PRICER.presentValue(trade.getProduct(), rpShifted).getAmount(USD).getAmount();
      assertEquals(mqsUsd1Computed[i], (pvS - pvUsd) / shift, TOLERANCE_PV_DELTA);
    }
    double[] mqsUsd2Computed =
        mqs.getSensitivity(USD_DSCON_CURVE_NAME, EUR).getSensitivity().toArray();
    for (int i = 0; i < USD_DSC_NB_NODES; i++) {
      Map<MarketDataKey<?>, Object> map = new HashMap<>(ALL_QUOTES.getValues());
      map.put(
          QuoteKey.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[i])),
          USD_DSC_MARKET_QUOTES[i] + shift);
      ImmutableMarketData ov = ImmutableMarketData.of(map);
      ImmutableRatesProvider rpShifted = calibrator.apply(ov);
      double pvS = FX_PRICER.presentValue(trade.getProduct(), rpShifted).getAmount(EUR).getAmount();
      assertEquals(mqsUsd2Computed[i], (pvS - pvEur) / shift, TOLERANCE_PV_DELTA);
    }
    double[] mqsEur1Computed =
        mqs.getSensitivity(EUR_DSC_CURVE_NAME, USD).getSensitivity().toArray();
    for (int i = 0; i < EUR_DSC_NB_NODES; i++) {
      assertEquals(mqsEur1Computed[i], 0.0, TOLERANCE_PV_DELTA);
    }
    double[] mqsEur2Computed =
        mqs.getSensitivity(EUR_DSC_CURVE_NAME, EUR).getSensitivity().toArray();
    for (int i = 0; i < EUR_DSC_NB_NODES; i++) {
      Map<MarketDataKey<?>, Object> map = new HashMap<>(ALL_QUOTES.getValues());
      map.put(
          QuoteKey.of(StandardId.of(SCHEME, EUR_DSC_ID_VALUE[i])),
          EUR_DSC_MARKET_QUOTES[i] + shift);
      ImmutableMarketData marketData = ImmutableMarketData.of(map);
      ImmutableRatesProvider rpShifted = calibrator.apply(marketData);
      double pvS = FX_PRICER.presentValue(trade.getProduct(), rpShifted).getAmount(EUR).getAmount();
      assertEquals(mqsEur2Computed[i], (pvS - pvEur) / shift, TOLERANCE_PV_DELTA, "Node " + i);
    }
  }
 /** Test par spread sensitivity for ISDA FRA Discounting method. */
 public void test_parSpreadSensitivity_ISDA() {
   PointSensitivities sensi = DEFAULT_PRICER.parSpreadSensitivity(FRA, IMM_PROV);
   CurveCurrencyParameterSensitivities sensiComputed = IMM_PROV.curveParameterSensitivity(sensi);
   CurveCurrencyParameterSensitivities sensiExpected =
       CAL_FD.sensitivity(
           IMM_PROV,
           (p) -> CurrencyAmount.of(FRA.getCurrency(), DEFAULT_PRICER.parSpread(FRA, (p))));
   assertTrue(sensiComputed.equalWithTolerance(sensiExpected, EPS_FD));
 }
 public void test_currencyExposure() {
   MultiCurrencyAmount computed1 =
       TRADE_PRICER.currencyExposure(CMS_TRADE_PREMIUM, RATES_PROVIDER);
   MultiCurrencyAmount computed2 = TRADE_PRICER.currencyExposure(CMS_TRADE, RATES_PROVIDER);
   MultiCurrencyAmount pv1 = TRADE_PRICER.presentValue(CMS_TRADE_PREMIUM, RATES_PROVIDER);
   PointSensitivities pt1 =
       TRADE_PRICER.presentValueSensitivity(CMS_TRADE_PREMIUM, RATES_PROVIDER);
   MultiCurrencyAmount expected1 = RATES_PROVIDER.currencyExposure(pt1).plus(pv1);
   MultiCurrencyAmount pv2 = TRADE_PRICER.presentValue(CMS_TRADE, RATES_PROVIDER);
   PointSensitivities pt2 = TRADE_PRICER.presentValueSensitivity(CMS_TRADE, RATES_PROVIDER);
   MultiCurrencyAmount expected2 = RATES_PROVIDER.currencyExposure(pt2).plus(pv2);
   assertEquals(
       computed1.getAmount(EUR).getAmount(),
       expected1.getAmount(EUR).getAmount(),
       NOTIONAL_VALUE * TOL);
   assertEquals(
       computed2.getAmount(EUR).getAmount(),
       expected2.getAmount(EUR).getAmount(),
       NOTIONAL_VALUE * TOL);
 }
  /** Test parameter sensitivity with finite difference sensitivity calculator. No cutoff period. */
  public void rateChfNoCutOffParameterSensitivity() {
    LocalDate[] valuationDate = {date(2015, 1, 1), date(2015, 1, 8)};
    double[] time = new double[] {0.0, 0.5, 1.0, 2.0, 5.0, 10.0};
    double[] rate = new double[] {0.0100, 0.0110, 0.0115, 0.0130, 0.0135, 0.0135};

    for (int loopvaldate = 0; loopvaldate < 2; loopvaldate++) {
      Curve onCurve =
          InterpolatedNodalCurve.of(Curves.zeroRates("ON", ACT_ACT_ISDA), time, rate, INTERPOLATOR);
      ImmutableRatesProvider prov =
          ImmutableRatesProvider.builder()
              .valuationDate(valuationDate[loopvaldate])
              .indexCurves(ImmutableMap.of(CHF_TOIS, onCurve))
              .timeSeries(ImmutableMap.of(CHF_TOIS, TIME_SERIES_BUILDER.build()))
              .build();
      OvernightAveragedRateObservation ro =
          OvernightAveragedRateObservation.of(CHF_TOIS, FIXING_START_DATE, FIXING_END_DATE, 0);
      ForwardOvernightAveragedRateObservationFn obsFn =
          ForwardOvernightAveragedRateObservationFn.DEFAULT;

      PointSensitivityBuilder sensitivityBuilderComputed =
          obsFn.rateSensitivity(ro, DUMMY_ACCRUAL_START_DATE, DUMMY_ACCRUAL_END_DATE, prov);
      CurveCurrencyParameterSensitivities parameterSensitivityComputed =
          prov.curveParameterSensitivity(sensitivityBuilderComputed.build());

      CurveCurrencyParameterSensitivities parameterSensitivityExpected =
          CAL_FD.sensitivity(
              prov,
              (p) ->
                  CurrencyAmount.of(
                      CHF_TOIS.getCurrency(),
                      obsFn.rate(ro, DUMMY_ACCRUAL_START_DATE, DUMMY_ACCRUAL_END_DATE, (p))));
      assertTrue(
          parameterSensitivityComputed.equalWithTolerance(
              parameterSensitivityExpected, EPS_FD * 10.0));
    }
  }
 static {
   CurveInterpolator interp = CurveInterpolators.DOUBLE_QUADRATIC;
   DoubleArray time_gbp = DoubleArray.of(0.0, 0.1, 0.25, 0.5, 0.75, 1.0, 2.0);
   DoubleArray rate_gbp = DoubleArray.of(0.0160, 0.0165, 0.0155, 0.0155, 0.0155, 0.0150, 0.014);
   InterpolatedNodalCurve dscCurve =
       InterpolatedNodalCurve.of(
           Curves.zeroRates("GBP-Discount", DAY_COUNT), time_gbp, rate_gbp, interp);
   DoubleArray time_index = DoubleArray.of(0.0, 0.25, 0.5, 1.0);
   DoubleArray rate_index = DoubleArray.of(0.0180, 0.0180, 0.0175, 0.0165);
   InterpolatedNodalCurve indexCurve =
       InterpolatedNodalCurve.of(
           Curves.zeroRates("GBP-GBPIBOR3M", DAY_COUNT), time_index, rate_index, interp);
   IMM_PROV =
       ImmutableRatesProvider.builder()
           .valuationDate(VAL_DATE)
           .discountCurves(ImmutableMap.of(GBP, dscCurve))
           .indexCurves(ImmutableMap.of(GBP_LIBOR_3M, indexCurve))
           .build();
 }
  // -------------------------------------------------------------------------
  public void test_cashFlowEquivalentAndSensitivity() {
    Swap swap = Swap.builder().legs(IBOR_LEG, FIXED_LEG).build();
    ImmutableMap<NotionalExchange, PointSensitivityBuilder> computedFull =
        CashFlowEquivalentCalculator.cashFlowEquivalentAndSensitivitySwap(swap.expand(), PROVIDER);
    ImmutableList<NotionalExchange> keyComputedFull = computedFull.keySet().asList();
    ImmutableList<PointSensitivityBuilder> valueComputedFull = computedFull.values().asList();
    ImmutableMap<NotionalExchange, PointSensitivityBuilder> computedIborLeg =
        CashFlowEquivalentCalculator.cashFlowEquivalentAndSensitivityIborLeg(
            IBOR_LEG.expand(), PROVIDER);
    ImmutableMap<NotionalExchange, PointSensitivityBuilder> computedFixedLeg =
        CashFlowEquivalentCalculator.cashFlowEquivalentAndSensitivityFixedLeg(
            FIXED_LEG.expand(), PROVIDER);
    assertEquals(computedFixedLeg.keySet().asList(), keyComputedFull.subList(0, 2));
    assertEquals(computedIborLeg.keySet().asList(), keyComputedFull.subList(2, 6));
    assertEquals(computedFixedLeg.values().asList(), valueComputedFull.subList(0, 2));
    assertEquals(computedIborLeg.values().asList(), valueComputedFull.subList(2, 6));

    double eps = 1.0e-7;
    RatesFiniteDifferenceSensitivityCalculator calc =
        new RatesFiniteDifferenceSensitivityCalculator(eps);
    int size = keyComputedFull.size();
    for (int i = 0; i < size; ++i) {
      final int index = i;
      CurveCurrencyParameterSensitivities expected =
          calc.sensitivity(
              PROVIDER,
              p ->
                  ((NotionalExchange)
                          CashFlowEquivalentCalculator.cashFlowEquivalentSwap(swap.expand(), p)
                              .getPaymentEvents()
                              .get(index))
                      .getPaymentAmount());
      PointSensitivityBuilder point =
          computedFull.get(
              CashFlowEquivalentCalculator.cashFlowEquivalentSwap(swap.expand(), PROVIDER)
                  .getPaymentEvents()
                  .get(index));
      CurveCurrencyParameterSensitivities computed =
          PROVIDER.curveParameterSensitivity(point.build());
      assertTrue(computed.equalWithTolerance(expected, eps * NOTIONAL));
    }
  }
Esempio n. 7
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  /**
   * Creates a rates provider from a set of market data containing a single discounting curve, and
   * forward curves and fixing series for a given set of indices. All curves are overridden by a
   * given replacement.
   *
   * @param marketData the market data
   * @param currency the currency of the discounting curve
   * @param indices the indices
   * @param curveOverride the curve override
   * @return the rates provider
   */
  public static RatesProvider toSingleCurveRatesProvider(
      SingleCalculationMarketData marketData,
      Currency currency,
      Set<? extends Index> indices,
      NodalCurve curveOverride) {

    // TODO - we should be able to replace curves more easily than having to pick out all the
    // market data into a new rates provider.

    return ImmutableRatesProvider.builder()
        .valuationDate(marketData.getValuationDate())
        .discountCurves(ImmutableMap.of(currency, curveOverride))
        .indexCurves(
            indices.stream().collect(toImmutableMap(Function.identity(), k -> curveOverride)))
        .timeSeries(
            indices
                .stream()
                .collect(
                    toImmutableMap(
                        Function.identity(), k -> marketData.getTimeSeries(IndexRateKey.of(k)))))
        .build();
  }
  public void test_cashFlowEquivalent() {
    Swap swap = Swap.builder().legs(IBOR_LEG, FIXED_LEG).build();
    ExpandedSwapLeg computed =
        CashFlowEquivalentCalculator.cashFlowEquivalentSwap(swap.expand(), PROVIDER);
    ExpandedSwapLeg computedIborLeg =
        CashFlowEquivalentCalculator.cashFlowEquivalentIborLeg(IBOR_LEG.expand(), PROVIDER);
    ExpandedSwapLeg computedFixedLeg =
        CashFlowEquivalentCalculator.cashFlowEquivalentFixedLeg(FIXED_LEG.expand(), PROVIDER);
    assertEquals(computedFixedLeg.getPaymentEvents(), computed.getPaymentEvents().subList(0, 2));
    assertEquals(computedIborLeg.getPaymentEvents(), computed.getPaymentEvents().subList(2, 6));

    // expected payments from fixed leg
    NotionalExchange fixedPayment1 =
        NotionalExchange.of(PAYMENT1, CurrencyAmount.of(GBP, NOTIONAL * RATE * PAY_YC1));
    NotionalExchange fixedPayment2 =
        NotionalExchange.of(PAYMENT2, CurrencyAmount.of(GBP, NOTIONAL * RATE * PAY_YC2));
    // expected payments from ibor leg
    LocalDate fixingSTART1 = GBP_LIBOR_3M.calculateEffectiveFromFixing(FIXING1);
    double fixedYearFraction1 =
        GBP_LIBOR_3M
            .getDayCount()
            .relativeYearFraction(
                fixingSTART1, GBP_LIBOR_3M.calculateMaturityFromEffective(fixingSTART1));
    double beta1 =
        (1d + fixedYearFraction1 * PROVIDER.iborIndexRates(GBP_LIBOR_3M).rate(FIXING1))
            * PROVIDER.discountFactor(GBP, PAYMENT1)
            / PROVIDER.discountFactor(GBP, fixingSTART1);
    NotionalExchange iborPayment11 =
        NotionalExchange.of(
            fixingSTART1, CurrencyAmount.of(GBP, -NOTIONAL * beta1 * PAY_YC1 / fixedYearFraction1));
    NotionalExchange iborPayment12 =
        NotionalExchange.of(
            PAYMENT1, CurrencyAmount.of(GBP, NOTIONAL * PAY_YC1 / fixedYearFraction1));
    LocalDate fixingSTART2 = GBP_LIBOR_3M.calculateEffectiveFromFixing(FIXING2);
    double fixedYearFraction2 =
        GBP_LIBOR_3M
            .getDayCount()
            .relativeYearFraction(
                fixingSTART2, GBP_LIBOR_3M.calculateMaturityFromEffective(fixingSTART2));
    double beta2 =
        (1d + fixedYearFraction2 * PROVIDER.iborIndexRates(GBP_LIBOR_3M).rate(FIXING2))
            * PROVIDER.discountFactor(GBP, PAYMENT2)
            / PROVIDER.discountFactor(GBP, fixingSTART2);
    NotionalExchange iborPayment21 =
        NotionalExchange.of(
            fixingSTART2, CurrencyAmount.of(GBP, -NOTIONAL * beta2 * PAY_YC2 / fixedYearFraction2));
    NotionalExchange iborPayment22 =
        NotionalExchange.of(
            PAYMENT2, CurrencyAmount.of(GBP, NOTIONAL * PAY_YC2 / fixedYearFraction2));

    ExpandedSwapLeg expected =
        ExpandedSwapLeg.builder()
            .type(OTHER)
            .payReceive(RECEIVE)
            .paymentEvents(
                fixedPayment1,
                fixedPayment2,
                iborPayment11,
                iborPayment12,
                iborPayment21,
                iborPayment22)
            .build();

    double eps = 1.0e-12;
    assertEquals(computed.getPaymentEvents().size(), expected.getPaymentEvents().size());
    for (int i = 0; i < 6; ++i) {
      NotionalExchange payCmp = (NotionalExchange) computed.getPaymentEvents().get(i);
      NotionalExchange payExp = (NotionalExchange) expected.getPaymentEvents().get(i);
      assertEquals(payCmp.getCurrency(), payExp.getCurrency());
      assertEquals(payCmp.getPaymentDate(), payExp.getPaymentDate());
      assertTrue(
          DoubleMath.fuzzyEquals(
              payCmp.getPaymentAmount().getAmount(),
              payExp.getPaymentAmount().getAmount(),
              NOTIONAL * eps));
    }
  }