Exemple #1
0
        static CalibrationZeroRateUsdEur2OisFxTest()
        {
            DSC_NAMES[USD_DSCON_CURVE_NAME] = USD;
            ISet <Index> usdFedFundSet = new HashSet <Index>();

            usdFedFundSet.Add(USD_FED_FUND);
            IDX_NAMES[USD_DSCON_CURVE_NAME] = usdFedFundSet;
            USD_DSC_NODES[0] = TermDepositCurveNode.of(TermDepositTemplate.of(Period.ofDays(1), USD_SHORT_DEPOSIT_T0), QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[0])));
            USD_DSC_NODES[1] = TermDepositCurveNode.of(TermDepositTemplate.of(Period.ofDays(1), USD_SHORT_DEPOSIT_T1), QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[1])));
            for (int i = 0; i < USD_DSC_NB_OIS_NODES; i++)
            {
                USD_DSC_NODES[USD_DSC_NB_DEPO_NODES + i] = FixedOvernightSwapCurveNode.of(FixedOvernightSwapTemplate.of(Period.ZERO, Tenor.of(USD_DSC_OIS_TENORS[i]), USD_FIXED_1Y_FED_FUND_OIS), QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[USD_DSC_NB_DEPO_NODES + i])));
            }
            for (int i = 0; i < EUR_DSC_NB_FX_NODES; i++)
            {
                EUR_DSC_NODES[i] = FxSwapCurveNode.of(FxSwapTemplate.of(EUR_DSC_FX_TENORS[i], EUR_USD), QuoteId.of(StandardId.of(SCHEME, EUR_DSC_ID_VALUE[i])));
            }
            ImmutableMarketDataBuilder builder = ImmutableMarketData.builder(VAL_DATE);

            for (int i = 0; i < USD_DSC_NB_NODES; i++)
            {
                builder.addValue(QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[i])), USD_DSC_MARKET_QUOTES[i]);
            }
            for (int i = 0; i < EUR_DSC_NB_NODES; i++)
            {
                builder.addValue(QuoteId.of(StandardId.of(SCHEME, EUR_DSC_ID_VALUE[i])), EUR_DSC_MARKET_QUOTES[i]);
            }
            builder.addValue(FxRateId.of(EUR, USD), FX_RATE_EUR_USD);
            ALL_QUOTES = builder.build();
        }
        static CalibrationZeroRateUsdOisIrsEurFxXCcyIrsTest()
        {
            USD_DSC_NODES[0] = TermDepositCurveNode.of(TermDepositTemplate.of(Period.ofDays(1), USD_SHORT_DEPOSIT_T0), QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[0])));
            USD_DSC_NODES[1] = TermDepositCurveNode.of(TermDepositTemplate.of(Period.ofDays(1), USD_SHORT_DEPOSIT_T1), QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[1])));
            for (int i = 0; i < USD_DSC_NB_OIS_NODES; i++)
            {
                USD_DSC_NODES[2 + i] = FixedOvernightSwapCurveNode.of(FixedOvernightSwapTemplate.of(Period.ZERO, Tenor.of(USD_DSC_OIS_TENORS[i]), USD_FIXED_1Y_FED_FUND_OIS), QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[2 + i])));
            }
            USD_FWD3_NODES[0] = IborFixingDepositCurveNode.of(IborFixingDepositTemplate.of(USD_LIBOR_3M), QuoteId.of(StandardId.of(SCHEME, USD_FWD3_ID_VALUE[0])));
            for (int i = 0; i < USD_FWD3_NB_FRA_NODES; i++)
            {
                USD_FWD3_NODES[i + 1] = FraCurveNode.of(FraTemplate.of(USD_FWD3_FRA_TENORS[i], USD_LIBOR_3M), QuoteId.of(StandardId.of(SCHEME, USD_FWD3_ID_VALUE[i + 1])));
            }
            for (int i = 0; i < USD_FWD3_NB_IRS_NODES; i++)
            {
                USD_FWD3_NODES[i + 1 + USD_FWD3_NB_FRA_NODES] = FixedIborSwapCurveNode.of(FixedIborSwapTemplate.of(Period.ZERO, Tenor.of(USD_FWD3_IRS_TENORS[i]), USD_FIXED_6M_LIBOR_3M), QuoteId.of(StandardId.of(SCHEME, USD_FWD3_ID_VALUE[i + 1 + USD_FWD3_NB_FRA_NODES])));
            }
            for (int i = 0; i < EUR_DSC_NB_FX_NODES; i++)
            {
                EUR_DSC_NODES[i] = FxSwapCurveNode.of(FxSwapTemplate.of(EUR_DSC_FX_TENORS[i], EUR_USD), QuoteId.of(StandardId.of(SCHEME, EUR_DSC_ID_VALUE[i])));
            }
            for (int i = 0; i < EUR_DSC_NB_XCCY_NODES; i++)
            {
                EUR_DSC_NODES[EUR_DSC_NB_FX_NODES + i] = XCcyIborIborSwapCurveNode.of(XCcyIborIborSwapTemplate.of(Tenor.of(EUR_DSC_XCCY_TENORS[i]), EUR_EURIBOR_3M_USD_LIBOR_3M), QuoteId.of(StandardId.of(SCHEME, EUR_DSC_ID_VALUE[EUR_DSC_NB_FX_NODES + i])));
            }
            EUR_FWD3_NODES[0] = IborFixingDepositCurveNode.of(IborFixingDepositTemplate.of(EUR_EURIBOR_3M), QuoteId.of(StandardId.of(SCHEME, EUR_FWD3_ID_VALUE[0])));
            for (int i = 0; i < EUR_FWD3_NB_FRA_NODES; i++)
            {
                EUR_FWD3_NODES[i + 1] = FraCurveNode.of(FraTemplate.of(EUR_FWD3_FRA_TENORS[i], EUR_EURIBOR_3M), QuoteId.of(StandardId.of(SCHEME, EUR_FWD3_ID_VALUE[i + 1])));
            }
            for (int i = 0; i < EUR_FWD3_NB_IRS_NODES; i++)
            {
                EUR_FWD3_NODES[i + 1 + EUR_FWD3_NB_FRA_NODES] = FixedIborSwapCurveNode.of(FixedIborSwapTemplate.of(Period.ZERO, Tenor.of(EUR_FWD3_IRS_TENORS[i]), EUR_FIXED_1Y_EURIBOR_3M), QuoteId.of(StandardId.of(SCHEME, EUR_FWD3_ID_VALUE[i + 1 + EUR_FWD3_NB_FRA_NODES])));
            }
            ImmutableMarketDataBuilder builder = ImmutableMarketData.builder(VAL_DATE);

            for (int i = 0; i < USD_DSC_NB_NODES; i++)
            {
                builder.addValue(QuoteId.of(StandardId.of(SCHEME, USD_DSC_ID_VALUE[i])), USD_DSC_MARKET_QUOTES[i]);
            }
            for (int i = 0; i < USD_FWD3_NB_NODES; i++)
            {
                builder.addValue(QuoteId.of(StandardId.of(SCHEME, USD_FWD3_ID_VALUE[i])), USD_FWD3_MARKET_QUOTES[i]);
            }
            for (int i = 0; i < EUR_DSC_NB_NODES; i++)
            {
                builder.addValue(QuoteId.of(StandardId.of(SCHEME, EUR_DSC_ID_VALUE[i])), EUR_DSC_MARKET_QUOTES[i]);
            }
            for (int i = 0; i < EUR_FWD3_NB_NODES; i++)
            {
                builder.addValue(QuoteId.of(StandardId.of(SCHEME, EUR_FWD3_ID_VALUE[i])), EUR_FWD3_MARKET_QUOTES[i]);
            }
            builder.addValue(QuoteId.of(StandardId.of(SCHEME, EUR_USD_ID_VALUE)), FX_RATE_EUR_USD);
            builder.addValue(FxRateId.of(EUR, USD), FxRate.of(EUR, USD, FX_RATE_EUR_USD));
            ALL_QUOTES = builder.build();
        }
Exemple #3
0
        private static CurveNode curveFxSwapCurveNode(string conventionStr, string timeStr, string label, QuoteId quoteId, double spread, CurveNodeDate date, CurveNodeDateOrder order)
        {
            if (!DoubleMath.fuzzyEquals(spread, 0d, 1e-10d))
            {
                throw new System.ArgumentException("Additional spread must be zero for FX swaps");
            }
            Matcher matcher = SIMPLE_YMD_TIME_REGEX.matcher(timeStr.ToUpper(Locale.ENGLISH));

            if (!matcher.matches())
            {
                throw new System.ArgumentException(Messages.format("Invalid time format for FX swap: {}", timeStr));
            }
            Period           periodToEnd = Period.parse("P" + matcher.group(1));
            FxSwapConvention convention  = FxSwapConvention.of(conventionStr);
            FxSwapTemplate   template    = FxSwapTemplate.of(periodToEnd, convention);

            return(FxSwapCurveNode.builder().template(template).farForwardPointsId(quoteId).label(label).date(date).dateOrder(order).build());
        }
        //-------------------------------------------------------------------------
        public virtual void duplicateInputDataKeys()
        {
            FxSwapTemplate  template1               = FxSwapTemplate.of(Period.ofMonths(1), FxSwapConventions.EUR_USD);
            FxSwapTemplate  template2               = FxSwapTemplate.of(Period.ofMonths(2), FxSwapConventions.EUR_USD);
            QuoteId         pointsKey1a             = QuoteId.of(StandardId.of("test", "1a"));
            QuoteId         pointsKey1b             = QuoteId.of(StandardId.of("test", "1b"));
            QuoteId         pointsKey2a             = QuoteId.of(StandardId.of("test", "2a"));
            QuoteId         pointsKey2b             = QuoteId.of(StandardId.of("test", "2b"));
            FxSwapCurveNode node1a                  = FxSwapCurveNode.of(template1, pointsKey1a);
            FxSwapCurveNode node1b                  = FxSwapCurveNode.of(template2, pointsKey1b);
            FxSwapCurveNode node2                   = FxSwapCurveNode.of(template1, pointsKey2a);
            FxSwapCurveNode node2b                  = FxSwapCurveNode.of(template2, pointsKey2b);
            CurveName       curveName1              = CurveName.of("curve1");
            InterpolatedNodalCurveDefinition curve1 = InterpolatedNodalCurveDefinition.builder().name(curveName1).nodes(node1a, node1b).xValueType(ValueType.YEAR_FRACTION).yValueType(ValueType.ZERO_RATE).dayCount(ACT_360).interpolator(CurveInterpolators.LINEAR).extrapolatorLeft(CurveExtrapolators.LINEAR).extrapolatorRight(CurveExtrapolators.LINEAR).build();
            CurveName curveName2 = CurveName.of("curve2");
            InterpolatedNodalCurveDefinition curve2   = InterpolatedNodalCurveDefinition.builder().name(curveName2).nodes(node2, node2b).xValueType(ValueType.YEAR_FRACTION).yValueType(ValueType.ZERO_RATE).dayCount(ACT_360).interpolator(CurveInterpolators.LINEAR).extrapolatorLeft(CurveExtrapolators.LINEAR).extrapolatorRight(CurveExtrapolators.LINEAR).build();
            CurveGroupName            curveGroupName  = CurveGroupName.of("group");
            RatesCurveGroupDefinition groupDefinition = RatesCurveGroupDefinition.builder().name(curveGroupName).addDiscountCurve(curve1, Currency.EUR).addDiscountCurve(curve2, Currency.USD).build();

            RatesCurveGroupMarketDataFunction fn = new RatesCurveGroupMarketDataFunction();
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: java.util.Map<com.opengamma.strata.data.MarketDataId<?>, Object> marketDataMap1 = com.google.common.collect.ImmutableMap.of(com.opengamma.strata.data.FxRateId.of(com.opengamma.strata.basics.currency.Currency.EUR, com.opengamma.strata.basics.currency.Currency.USD), com.opengamma.strata.basics.currency.FxRate.of(com.opengamma.strata.basics.currency.Currency.EUR, com.opengamma.strata.basics.currency.Currency.USD, 1.01), pointsKey1a, 0.1d, pointsKey1b, 0.2d);
            IDictionary <MarketDataId <object>, object> marketDataMap1 = ImmutableMap.of(FxRateId.of(Currency.EUR, Currency.USD), FxRate.of(Currency.EUR, Currency.USD, 1.01), pointsKey1a, 0.1d, pointsKey1b, 0.2d);
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: java.util.Map<com.opengamma.strata.data.MarketDataId<?>, Object> marketDataMap2 = com.google.common.collect.ImmutableMap.of(com.opengamma.strata.data.FxRateId.of(com.opengamma.strata.basics.currency.Currency.EUR, com.opengamma.strata.basics.currency.Currency.USD), com.opengamma.strata.basics.currency.FxRate.of(com.opengamma.strata.basics.currency.Currency.EUR, com.opengamma.strata.basics.currency.Currency.USD, 1.01), pointsKey2a, 0.1d, pointsKey2b, 0.2d);
            IDictionary <MarketDataId <object>, object> marketDataMap2 = ImmutableMap.of(FxRateId.of(Currency.EUR, Currency.USD), FxRate.of(Currency.EUR, Currency.USD, 1.01), pointsKey2a, 0.1d, pointsKey2b, 0.2d);
            RatesCurveInputs            curveInputs1 = RatesCurveInputs.of(marketDataMap1, DefaultCurveMetadata.of("curve1"));
            RatesCurveInputs            curveInputs2 = RatesCurveInputs.of(marketDataMap2, DefaultCurveMetadata.of("curve2"));
            ImmutableScenarioMarketData marketData   = ImmutableScenarioMarketData.builder(LocalDate.of(2011, 3, 8)).addValue(RatesCurveInputsId.of(curveGroupName, curveName1, ObservableSource.NONE), curveInputs1).addValue(RatesCurveInputsId.of(curveGroupName, curveName2, ObservableSource.NONE), curveInputs2).build();

            fn.buildCurveGroup(groupDefinition, CALIBRATOR, marketData, REF_DATA, ObservableSource.NONE);

            // This has a duplicate key with a different value which should fail
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: java.util.Map<com.opengamma.strata.data.MarketDataId<?>, Object> badMarketDataMap = com.google.common.collect.ImmutableMap.of(com.opengamma.strata.data.FxRateId.of(com.opengamma.strata.basics.currency.Currency.EUR, com.opengamma.strata.basics.currency.Currency.USD), com.opengamma.strata.basics.currency.FxRate.of(com.opengamma.strata.basics.currency.Currency.EUR, com.opengamma.strata.basics.currency.Currency.USD, 1.02), pointsKey2a, 0.2d);
            IDictionary <MarketDataId <object>, object> badMarketDataMap = ImmutableMap.of(FxRateId.of(Currency.EUR, Currency.USD), FxRate.of(Currency.EUR, Currency.USD, 1.02), pointsKey2a, 0.2d);
            RatesCurveInputs   badCurveInputs = RatesCurveInputs.of(badMarketDataMap, DefaultCurveMetadata.of("curve2"));
            ScenarioMarketData badMarketData  = ImmutableScenarioMarketData.builder(LocalDate.of(2011, 3, 8)).addValue(RatesCurveInputsId.of(curveGroupName, curveName1, ObservableSource.NONE), curveInputs1).addValue(RatesCurveInputsId.of(curveGroupName, curveName2, ObservableSource.NONE), badCurveInputs).build();
            string             msg            = "Multiple unequal values found for identifier .*\\. Values: .* and .*";

            assertThrowsIllegalArg(() => fn.buildCurveGroup(groupDefinition, CALIBRATOR, badMarketData, REF_DATA, ObservableSource.NONE), msg);
        }
Exemple #5
0
        static FxOptionVolatilitiesMarketDataFunctionTest()
        {
            ImmutableList.Builder <FxOptionVolatilitiesNode>        volNodeBuilder             = ImmutableList.builder();
            ImmutableMap.Builder <QuoteId, double>                  marketQuoteBuilder         = ImmutableMap.builder();
            ImmutableMap.Builder <QuoteId, MarketDataBox <double> > scenarioMarketQuoteBuilder = ImmutableMap.builder();
            ImmutableList.Builder <FixedOvernightSwapCurveNode>     usdNodeBuilder             = ImmutableList.builder();
            ImmutableList.Builder <FxSwapCurveNode>                 gbpNodeBuilder             = ImmutableList.builder();
            for (int i = 0; i < VOL_TENORS.Count; ++i)
            {
                for (int j = 0; j < STRIKES.Count; ++j)
                {
                    QuoteId quoteId = QuoteId.of(StandardId.of("OG", VOL_TENORS[i].ToString() + "_" + STRIKES[j].Label + "_" + VALUE_TYPES[j].ToString()));
                    volNodeBuilder.add(FxOptionVolatilitiesNode.of(GBP_USD, SPOT_OFFSET, BDA, VALUE_TYPES[j], quoteId, VOL_TENORS[i], STRIKES[j]));
                    marketQuoteBuilder.put(quoteId, VOL_QUOTES[i][j]);
                    scenarioMarketQuoteBuilder.put(quoteId, MarketDataBox.ofScenarioValues(VOL_QUOTES[i][j], VOL_QUOTES_1[i][j]));
                }
            }
            for (int i = 0; i < USD_QUOTES.Count; ++i)
            {
                QuoteId quoteId = QuoteId.of(StandardId.of("OG", USD.ToString() + "-OIS-" + USD_TENORS[i].ToString()));
                usdNodeBuilder.add(FixedOvernightSwapCurveNode.of(FixedOvernightSwapTemplate.of(USD_TENORS[i], FixedOvernightSwapConventions.USD_FIXED_TERM_FED_FUND_OIS), quoteId));
                marketQuoteBuilder.put(quoteId, USD_QUOTES[i]);
                scenarioMarketQuoteBuilder.put(quoteId, MarketDataBox.ofScenarioValues(USD_QUOTES[i], USD_QUOTES_1[i]));
            }
            for (int i = 0; i < GBP_QUOTES.Count; ++i)
            {
                QuoteId quoteId = QuoteId.of(StandardId.of("OG", GBP_USD.ToString() + "-FX-" + GBP_PERIODS[i].ToString()));
                gbpNodeBuilder.add(FxSwapCurveNode.of(FxSwapTemplate.of(GBP_PERIODS[i], FxSwapConventions.GBP_USD), quoteId));
                marketQuoteBuilder.put(quoteId, GBP_QUOTES[i]);
                scenarioMarketQuoteBuilder.put(quoteId, MarketDataBox.ofScenarioValues(GBP_QUOTES[i], GBP_QUOTES_1[i]));
            }
            VOL_NODES              = volNodeBuilder.build();
            USD_NODES              = usdNodeBuilder.build();
            GBP_NODES              = gbpNodeBuilder.build();
            MARKET_QUOTES          = marketQuoteBuilder.build();
            SCENARIO_MARKET_QUOTES = scenarioMarketQuoteBuilder.build();
            IList <double> expiry  = VOL_TENORS.Select(t => ACT_365F.relativeYearFraction(VALUATION_DATE, BDA.adjust(SPOT_OFFSET.adjust(VALUATION_DATE, REF_DATA).plus(t), REF_DATA))).ToList();
            int            nSmiles = expiry.Count;

            double[] atm = new double[nSmiles];
//JAVA TO C# CONVERTER NOTE: The following call to the 'RectangularArrays' helper class reproduces the rectangular array initialization that is automatic in Java:
//ORIGINAL LINE: double[][] rr = new double[nSmiles][2];
            double[][] rr = RectangularArrays.ReturnRectangularDoubleArray(nSmiles, 2);
//JAVA TO C# CONVERTER NOTE: The following call to the 'RectangularArrays' helper class reproduces the rectangular array initialization that is automatic in Java:
//ORIGINAL LINE: double[][] str = new double[nSmiles][2];
            double[][] str = RectangularArrays.ReturnRectangularDoubleArray(nSmiles, 2);
            for (int i = 0; i < nSmiles; ++i)
            {
                atm[i]    = VOL_QUOTES[i][0];
                rr[i][0]  = VOL_QUOTES[i][1];
                rr[i][1]  = VOL_QUOTES[i][3];
                str[i][0] = VOL_QUOTES[i][2];
                str[i][1] = VOL_QUOTES[i][4];
            }
            InterpolatedStrikeSmileDeltaTermStructure term = InterpolatedStrikeSmileDeltaTermStructure.of(DoubleArray.copyOf(expiry), DoubleArray.of(0.1, 0.25), DoubleArray.copyOf(atm), DoubleMatrix.copyOf(rr), DoubleMatrix.copyOf(str), ACT_365F, LINEAR, FLAT, FLAT, PCHIP, FLAT, FLAT);

            EXP_VOLS = BlackFxOptionSmileVolatilities.of(VOL_NAME, GBP_USD, VALUATION_DATE.atTime(VALUATION_TIME).atZone(ZONE), term);
            for (int i = 0; i < nSmiles; ++i)
            {
                atm[i]    = VOL_QUOTES_1[i][0];
                rr[i][0]  = VOL_QUOTES_1[i][1];
                rr[i][1]  = VOL_QUOTES_1[i][3];
                str[i][0] = VOL_QUOTES_1[i][2];
                str[i][1] = VOL_QUOTES_1[i][4];
            }
            InterpolatedStrikeSmileDeltaTermStructure term1 = InterpolatedStrikeSmileDeltaTermStructure.of(DoubleArray.copyOf(expiry), DoubleArray.of(0.1, 0.25), DoubleArray.copyOf(atm), DoubleMatrix.copyOf(rr), DoubleMatrix.copyOf(str), ACT_365F, LINEAR, FLAT, FLAT, PCHIP, FLAT, FLAT);

            EXP_VOLS_1 = BlackFxOptionSmileVolatilities.of(VOL_NAME, GBP_USD, VALUATION_DATE_1.atTime(VALUATION_TIME_1).atZone(ZONE), term1);
            ImmutableList.Builder <FxOptionVolatilitiesNode> nodeBuilder  = ImmutableList.builder();
            ImmutableMap.Builder <QuoteId, double>           quoteBuilder = ImmutableMap.builder();
            for (int i = 0; i < SURFACE_TENORS.Count; ++i)
            {
                for (int j = 0; j < SURFACE_STRIKES.Count; ++j)
                {
                    QuoteId quoteId = QuoteId.of(StandardId.of("OG", GBP_USD.ToString() + "_" + SURFACE_TENORS[i].ToString() + "_" + SURFACE_STRIKES[j]));
                    quoteBuilder.put(quoteId, SURFACE_VOL_QUOTES[i][j]);
                    nodeBuilder.add(FxOptionVolatilitiesNode.of(GBP_USD, SPOT_OFFSET, BDA, ValueType.BLACK_VOLATILITY, quoteId, SURFACE_TENORS[i], SimpleStrike.of(SURFACE_STRIKES[j])));
                }
            }
            SURFACE_NODES  = nodeBuilder.build();
            SURFACE_QUOTES = quoteBuilder.build();
            IList <double> expiry = new List <double>();
            IList <double> strike = new List <double>();
            IList <double> vols   = new List <double>();

            for (int i = 0; i < SURFACE_TENORS.Count; ++i)
            {
                for (int j = 0; j < SURFACE_STRIKES.Count; ++j)
                {
                    double yearFraction = ACT_365F.relativeYearFraction(VALUATION_DATE, BDA.adjust(SPOT_OFFSET.adjust(VALUATION_DATE, REF_DATA).plus(SURFACE_TENORS[i]), REF_DATA));
                    expiry.Add(yearFraction);
                    strike.Add(SURFACE_STRIKES[j]);
                    vols.Add(SURFACE_VOL_QUOTES[i][j]);
                }
            }
            SurfaceInterpolator      interp  = GridSurfaceInterpolator.of(LINEAR, PCHIP);
            InterpolatedNodalSurface surface = InterpolatedNodalSurface.ofUnsorted(Surfaces.blackVolatilityByExpiryStrike(VOL_NAME.Name, ACT_365F), DoubleArray.copyOf(expiry), DoubleArray.copyOf(strike), DoubleArray.copyOf(vols), interp);

            SURFACE_EXP_VOLS = BlackFxOptionSurfaceVolatilities.of(VOL_NAME, GBP_USD, VALUATION_DATE.atTime(VALUATION_TIME).atZone(ZONE), surface);
        }