/**
* Copyright (C) 2013 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.strata.pricer.impl.credit.isda;
import static com.opengamma.strata.pricer.impl.credit.isda.ImmDateLogic.getIMMDateSet;
import static com.opengamma.strata.pricer.impl.credit.isda.ImmDateLogic.getNextIMMDate;
import static com.opengamma.strata.pricer.impl.credit.isda.ImmDateLogic.getPrevIMMDate;
import static org.testng.AssertJUnit.assertEquals;
import java.time.LocalDate;
import java.time.Month;
import java.time.Period;
import java.util.Arrays;
import org.testng.annotations.Test;
import com.opengamma.strata.market.ShiftType;
/**
* Test.
*/
@Test
public class IndexCdsTest extends IsdaBaseTest {
private static final MarketQuoteConverter PUF_CONVERTER = new MarketQuoteConverter();
//the buckets
private static final Period[] TENORS = new Period[] {Period.ofMonths(6), Period.ofYears(1), Period.ofYears(2), Period.ofYears(3), Period.ofYears(4), Period.ofYears(5), Period.ofYears(7),
Period.ofYears(10), Period.ofYears(15), Period.ofYears(20), Period.ofYears(30) };
private static final double COUPON = 0.01;
private static final double NOTIONAL = 1e16; //ten quadrillion notional (to get more dp from Markit)
/**
* Test of CDX.NA.IG.20-v1 5Y from Markit website
*/
@Test
public void test() {
//expected values (user)
final double mCleanPrice = 100.3;
final double mCashSettle = -43750455922031.0;
final int mAccDays = 49;
final double mAccAmt = 13611111111111.11;
final double mCreditDV01 = 4647028138242.0;
//transformed
final double mCashSettleTransformed = -43757966062423.0;
final double mCreditDV01Transformed = 4646838148143.0;
final double tradeLevel = 0.00935;
final LocalDate tradeDate = LocalDate.of(2013, Month.AUGUST, 7);
final LocalDate stepinDate = tradeDate.plusDays(1); // AKA stepin date
final LocalDate cashSettleDate = DEFAULT_CALENDAR.shift(tradeDate, 3); // AKA valuation date
final LocalDate startDate = getPrevIMMDate(tradeDate);
final LocalDate maturity = LocalDate.of(2018, Month.JUNE, 20);
//yield curve
final LocalDate spotDate = DEFAULT_CALENDAR.shift(tradeDate.minusDays(1), 3);
final String[] yieldCurvePoints = new String[] {"1M", "2M", "3M", "6M", "1Y", "2Y", "3Y", "4Y", "5Y", "6Y", "7Y", "8Y", "9Y", "10Y", "12Y", "15Y", "20Y", "25Y", "30Y" };
final String[] yieldCurveInstruments = new String[] {"M", "M", "M", "M", "M", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S" };
final double[] rates = new double[] {0.00185, 0.00227, 0.002664, 0.003955, 0.006654, 0.004845, 0.00784, 0.011725, 0.0157, 0.01919, 0.02219, 0.024565, 0.02657, 0.02825, 0.03095, 0.033495,
0.035505, 0.036425, 0.036915 };
final IsdaCompliantYieldCurve yieldCurve = makeYieldCurve(tradeDate, spotDate, yieldCurvePoints, yieldCurveInstruments, rates, ACT360, D30360, Period.ofMonths(6));
final LocalDate nextIMM = getNextIMMDate(tradeDate);
final LocalDate[] pillarDates = getIMMDateSet(nextIMM, TENORS);
final int nPillars = pillarDates.length;
final double[] flatSpreads = new double[nPillars];
Arrays.fill(flatSpreads, tradeLevel);
final CdsAnalytic[] calibrationCDS = new CdsAnalytic[nPillars];
for (int i = 0; i < nPillars; i++) {
calibrationCDS[i] = new CdsAnalytic(tradeDate, stepinDate, cashSettleDate, startDate, pillarDates[i], PAY_ACC_ON_DEFAULT, PAYMENT_INTERVAL, STUB, PROCTECTION_START, RECOVERY_RATE);
}
final CdsAnalytic pointCDS = new CdsAnalytic(tradeDate, stepinDate, cashSettleDate, startDate, maturity, PAY_ACC_ON_DEFAULT, PAYMENT_INTERVAL, STUB, PROCTECTION_START, RECOVERY_RATE);
final CdsQuotedSpread qSpread = new CdsQuotedSpread(COUPON, tradeLevel);
final double puf = PUF_CONVERTER.convert(pointCDS, qSpread, yieldCurve).getPointsUpFront();
final double price = (1 - puf) * 100;
final double accAmt = NOTIONAL * pointCDS.getAccruedPremium(COUPON);
final double cashSettle = puf * NOTIONAL - accAmt;
final double cs01 = NOTIONAL * ONE_BP * CS01_CAL.parallelCS01(pointCDS, qSpread, yieldCurve, ONE_BP);
assertEquals("price", mCleanPrice, price, 1e-1); //only 1dp of percentage given
assertEquals("Cash Settlement", mCashSettle, cashSettle, 1e-15 * NOTIONAL);
assertEquals("Accured Days", mAccDays, pointCDS.getAccuredDays());
assertEquals("Accured Amt", mAccAmt, accAmt, 1e-18 * NOTIONAL);
assertEquals("Credit DV01", mCreditDV01, cs01, 1e-15 * NOTIONAL);
//flat spread term structure (transformed)
final IsdaCompliantCreditCurve creditCurve = CREDIT_CURVE_BUILDER.calibrateCreditCurve(calibrationCDS, flatSpreads, yieldCurve);
final double cashSettleTrans = NOTIONAL * PRICER.pv(pointCDS, yieldCurve, creditCurve, COUPON, CdsPriceType.DIRTY);
final double cs01Trans = NOTIONAL * ONE_BP * CS01_CAL.parallelCS01FromParSpreads(
pointCDS, COUPON, yieldCurve, calibrationCDS, flatSpreads, ONE_BP, ShiftType.ABSOLUTE);
assertEquals("Cash Settlement (trans)", mCashSettleTransformed, cashSettleTrans, 1e-15 * NOTIONAL);
assertEquals("Credit DV01 (Trans)", mCreditDV01Transformed, cs01Trans, 1e-15 * NOTIONAL);
}
/**
* iTraxx Europe Series 20 Version 1 5Y
*/
@Test
public void test2() {
final double coupon = 0.01;
final CdsAnalyticFactory factory = new CdsAnalyticFactory();
final LocalDate tradeDate = LocalDate.of(2014, 1, 15);
final LocalDate ycSpotDate = LocalDate.of(2014, 1, 17);
final String[] yieldCurvePoints = new String[] {"1M", "2M", "3M", "6M", "9M", "1Y", "2Y", "3Y", "4Y", "5Y", "6Y", "7Y", "8Y", "9Y", "10Y", "12Y", "15Y", "20Y", "30Y" };
final String[] yieldCurveInstruments = new String[] {"M", "M", "M", "M", "M", "M", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S", "S" };
final double[] rates = new double[] {0.00208, 0.00247, 0.00282, 0.0039, 0.00482, 0.00557, 0.00522, 0.00705, 0.00942, 0.01182, 0.01405, 0.01607, 0.01788, 0.01948, 0.02088, 0.02315, 0.02537,
0.02686, 0.02724 };
final IsdaCompliantYieldCurve yieldCurve = makeYieldCurve(tradeDate, ycSpotDate, yieldCurvePoints, yieldCurveInstruments, rates, ACT360, D30360, Period.ofYears(1));
//TODO have explicit index methods in CDSAnalyticFactory [PLAT-5564]
final CdsAnalytic cds = factory.makeImmCds(tradeDate, Period.of(4, 9, 0)); //Index maturity is 20-Dec-2018
final int mAccDays = 27;
final double mAccAmount = 7.5e-4;
assertEquals(mAccDays, cds.getAccuredDays());
assertEquals(mAccAmount, cds.getAccruedPremium(coupon));
final double df = yieldCurve.getDiscountFactor(cds.getCashSettleTime());
//these are Markit 'user' values (calculated from constant hazard rate)
IsdaCompliantCreditCurve cc = CREDIT_CURVE_BUILDER.calibrateCreditCurve(cds, 0.012, yieldCurve);
double marketValue = PRICER.pv(cds, yieldCurve, cc, coupon, CdsPriceType.DIRTY, 0.0);
double cashSettlement = marketValue / df;
double mMarketValue = 0.008568684437956;
double mCashSettlement = 0.008568931959138;
assertEquals(mMarketValue, marketValue, 1e-15);
assertEquals(mCashSettlement, cashSettlement, 1e-15);
//now use clear price of 99.07% (note index quoted as 1-puf)
final double puf = 0.0093;
cc = CREDIT_CURVE_BUILDER.calibrateCreditCurve(cds, coupon, yieldCurve, puf);
marketValue = PRICER.pv(cds, yieldCurve, cc, coupon, CdsPriceType.DIRTY, 0.0);
cashSettlement = marketValue / df;
mMarketValue = 0.008549753025685;
mCashSettlement = 0.00855;
assertEquals(mMarketValue, marketValue, 1e-15);
assertEquals(mCashSettlement, cashSettlement, 1e-15);
}
}