def simpleToContinuousRates(self, simpleRates, dates, day_counter=ql.Actual360()):
continousRates = simpleRates.copy()
for i in range(len(simpleRates) - 1):
r_simple = ql.InterestRate(
simpleRates[i + 1], ql.Actual360(), ql.Simple, ql.Once
)
t = day_counter.yearFraction(dates[i], dates[i + 1])
r_continuous = r_simple.equivalentRate(ql.Continuous, ql.NoFrequency, t)
continousRates[i + 1] = r_continuous.rate()
return continousRates
def create_swaption_helpers(data, index, term_structure, engine):
swaptions = []
fixed_leg_tenor = ql.Period(1, ql.Years)
fixed_leg_daycounter = ql.Actual360()
floating_leg_daycounter = ql.Actual360()
for d in data:
vol_handle = ql.QuoteHandle(ql.SimpleQuote(d.volatility))
helper = ql.SwaptionHelper(ql.Period(d.start, ql.Years),
ql.Period(d.length,
ql.Years), vol_handle, index,
fixed_leg_tenor, fixed_leg_daycounter,
floating_leg_daycounter, term_structure)
helper.setPricingEngine(engine)
swaptions.append(helper)
return swaptions
def build_volatility_curve(volatility):
"""Create volatility curve"""
volatility = ql.SimpleQuote(volatility)
volatility_curve = ql.BlackConstantVol(0, ql.TARGET(),
ql.QuoteHandle(volatility),
ql.Actual360())
return volatility, volatility_curve
def to_ql_day_counter(arg):
"""Converts a string with day_counter name to the corresponding QuantLib object.
Parameters
----------
arg: str
Returns
-------
QuantLib.DayCounter
"""
if arg.upper() == "THIRTY360E":
return ql.Thirty360(ql.Thirty360.European)
elif arg.upper() == "THIRTY360":
return ql.Thirty360()
elif arg.upper() == "ACTUAL360":
return ql.Actual360()
elif arg.upper() == "ACTUAL365":
return ql.Actual365Fixed()
elif arg.upper() == "ACTUALACTUAL":
return ql.ActualActual(ql.ActualActual.ISMA)
elif arg.upper() == "ACTUALACTUALISMA":
return ql.ActualActual(ql.ActualActual.ISMA)
elif arg.upper() == "ACTUALACTUALISDA":
return ql.ActualActual(ql.ActualActual.ISDA)
elif arg.upper() == "BUSINESS252":
return ql.Business252()
else:
raise ValueError(
"Unable to convert {} to a QuantLib day counter".format(arg))
def testPiecewiseeFlatForwardCurve(asOfDate, basis, curveId):
curve = builder.PiecewiseFlatForwardCurve(asOfDate, basis, curveId)
# print(curve.dayCounter())
today = curve.referenceDate()
end = today + ql.Period(2, ql.Years)
dates = [
ql.Date(serial) for serial in range(today.serialNumber(),
end.serialNumber() + 1)
]
rates_c = [
curve.forwardRate(d,
ql.TARGET().advance(d, 1, ql.Days), ql.Actual360(),
ql.Simple).rate() for d in dates
]
pydt = [
datetime.datetime(d.year(), d.month(), d.dayOfMonth()) for d in dates
]
fig, ax = plt.subplots()
fig.set_size_inches(10.5, 9.5)
ax.yaxis.set_major_formatter(
FuncFormatter(lambda r, pos: '{:.2%}'.format(r)))
plt.subplots_adjust(bottom=0.2)
l, = plt.plot(pydt, rates_c)
plt.show()
def make_swap(start,
maturity,
notional,
fixed_rate,
index,
typ=Qlb.VanillaSwap.Payer):
end = Qlb.TARGET().advance(start, maturity)
fixed_leg_tenor = Qlb.Period('6m')
fixed_leg_bdc = Qlb.ModifiedFollowing
fixed_leg_dc = Qlb.Actual360()
spread = 0.0
fixed_leg_schedule = Qlb.Schedule(start, end, fixed_leg_tenor,
index.fixingCalendar(), fixed_leg_bdc,
fixed_leg_bdc,
Qlb.DateGeneration.Backward, False)
floater_leg_schedule = Qlb.Schedule(start, end, index.tenor(),
index.fixingCalendar(),
index.businessDayConvention(),
index.businessDayConvention(),
Qlb.DateGeneration.Backward, False)
swap = Qlb.VanillaSwap(typ, notional, fixed_leg_schedule, fixed_rate,
fixed_leg_dc, floater_leg_schedule, index, spread,
index.dayCounter())
return swap, [index.fixingDate(x) for x in floater_leg_schedule][:-1]
def jpy_3m_example():
calendar = objects.get('JAPAN')
start = ql.Date(15, 3, 2020)
maturity = ql.Date(15, 6, 2020)
fixedSchedule = ql.MakeSchedule(start,
maturity,
ql.Period('3M'),
calendar=calendar)
floatSchedule = ql.MakeSchedule(start,
maturity,
ql.Period('3M'),
calendar=calendar)
jpy_3m_crv = curves.get('JPY.3M')
jpy_3m_yts = ql.YieldTermStructureHandle(jpy_3m_crv)
jpy_libor_3m = objects.get('JPY.3M').clone(jpy_3m_yts)
jpy_yts = ql.YieldTermStructureHandle(curves.get('JPY.OIS'))
engine = ql.DiscountingSwapEngine(jpy_yts)
swap = ql.VanillaSwap(ql.VanillaSwap.Receiver, 1e9, fixedSchedule,
-0.15 / 100, ql.Actual365Fixed(), floatSchedule,
jpy_libor_3m, 0, ql.Actual360())
swap.setPricingEngine(engine)
print(f"Swap NPV : {swap.NPV():,.2f}")
print(f"Swap Rate : {swap.fairRate() * 100:,.6f}")
def uf_list(date_dt, infla, yieldcurve_clp, yieldcurve_uf):
#Quantlib day_count, compounding and frequency convention
day_count = ql.Actual360()
compounding = ql.Simple
freq = ql.Annual
#Todays UF
actual_uf = infla[infla['Dates'] == date_dt]['UF'].iloc[0]
#Today date in quantlib format from datetime format
today_date_ql = ql.Date(date_dt.day, date_dt.month, date_dt.year)
size = len(infla)
dates = []
ufs = []
i = 0
for i in range(7300 - size):
#next date to calculate UF
i += 1
calc_date = infla['Dates'].iloc[-1] + Day(i, normalize=True)
aux_date_ql = ql.Date(calc_date.day, calc_date.month, calc_date.year)
yrs = day_count.yearFraction(today_date_ql, aux_date_ql)
rate_uf = yieldcurve_uf.zeroRate(yrs, compounding, freq).rate()
rate_clp = yieldcurve_clp.zeroRate(yrs, compounding, freq).rate()
next_uf = (1 + rate_clp * yrs) * actual_uf / (1 + rate_uf * yrs)
dates.append(calc_date)
ufs.append(next_uf)
tmp = pd.DataFrame.from_dict({'Dates': dates, 'UF': ufs})
final = pd.concat([infla, tmp], ignore_index=True)
return final
def usd_1m_example():
calendar = ql.UnitedStates()
start = ql.Date(17, 11, 2019)
maturity = calendar.advance(start, ql.Period('5y'))
fixedSchedule = ql.MakeSchedule(start, maturity, ql.Period('6M'))
floatSchedule = ql.MakeSchedule(start, maturity, ql.Period('1M'))
usd_1m_crv = curves['USD.1M']
usd_1m_yts = ql.YieldTermStructureHandle(usd_1m_crv)
usd_libor_1m = ql.USDLibor(ql.Period('1M'), usd_1m_yts)
usd_yts = ql.YieldTermStructureHandle(curves['USD.OIS'])
engine = ql.DiscountingSwapEngine(usd_yts)
fixedRate = 0.354500 / 100
swap = ql.VanillaSwap(ql.VanillaSwap.Receiver, 10e6, fixedSchedule,
fixedRate, ql.Thirty360(), floatSchedule,
usd_libor_1m, 0, ql.Actual360())
swap.setPricingEngine(engine)
bbg_mtm = -573192.53
print(f"Swap NPV : {swap.NPV():,.2f}")
print(f"BBG NPV : {bbg_mtm:,.2f}")
print(f"Swap PV01 : {swap.fixedLegBPS():,.2f}")
dif = bbg_mtm - swap.NPV()
print(f"Diff : {dif:,.2f}")
print(f"Diff (bps): {dif / swap.fixedLegBPS():,.2f}")
def day_count_fraction(self, dcf):
"""
day_count_fraction takes a string that is used in the
conventions DataFrame, and returns the QuantLib-equivalent
day-count object. This function takes all day-counters that are
currently allowed in QuantLib.
Currently, the function takes the following strings:
Act360, Act365Fixed, ActAct, Bus252, 30360
Args:
dcf (str): day count fraction string
Returns:
object: QuantLib day-count-fraction object
"""
if dcf == 'Act360':
return qlib.Actual360()
elif dcf == 'Act365Fixed':
return qlib.Actual365Fixed()
elif dcf == 'ActAct':
return qlib.ActualActual()
elif dcf == 'Bus252':
return qlib.Business252()
elif dcf == '30360':
return qlib.Thirty360()
def CURVE(today, ticker, quote):
depo = quote[quote['InstType'] == 'CASH']
futures = quote[quote['InstType'] == 'FUTURE']
swap = quote[quote['InstType'] == 'SWAP']
todays_date = ql.Date(today.day, today.month, today.year)
ql.Settings.instance().evaluationDate = todays_date
if ticker == 'USDIRS':
calendar = ql.UnitedStates()
dayCounter = ql.Actual360()
adjustment = ql.ModifiedFollowing
settlementDays = 2
frequency = ql.Semiannual
elif ticker == 'KRWIRS':
calendar = ql.SouthKorea()
dayCounter = ql.Actual365Fixed()
adjustment = ql.ModifiedFollowing
settlementDays = 2
frequency = ql.Quarterly
# Build Rate Helpers
# 1. Deposit Rate Helper
depositHelpers = [
ql.DepositRateHelper(ql.QuoteHandle(ql.SimpleQuote(rate / 100)),
ql.Period(int(day), ql.Days), settlementDays,
calendar, adjustment, False, dayCounter)
for day, rate in zip(depo['DaysToMaturity'], depo['Market.Mid'])
]
# 2. Fra Rate Helper
futuresHelpers = []
for i, price in enumerate(futures['Market.Mid']):
iborStartDate = ql.Date(futures['Maturity'][i].day,
futures['Maturity'][i].month,
futures['Maturity'][i].year)
futuresHelper = ql.FuturesRateHelper(
ql.QuoteHandle(ql.SimpleQuote(price)), iborStartDate, 3, calendar,
adjustment, False, dayCounter)
futuresHelpers.append(futuresHelper)
# 3. Swap Rate Helper
swapHelpers = [
ql.SwapRateHelper(ql.QuoteHandle(ql.SimpleQuote(rate / 100)),
ql.Period(int(day), ql.Days), calendar, frequency,
adjustment, dayCounter, ql.Euribor3M())
for day, rate in zip(swap['DaysToMaturity'], swap['Market.Mid'])
]
# Curve Construction
helpers = depositHelpers + futuresHelpers + swapHelpers
depoFuturesSwapCurve = ql.PiecewiseLinearZero(todays_date, helpers,
dayCounter)
return depoFuturesSwapCurve
def Hazard_Rate_Ex2(interest_rate, matrix, LGD, Maturity):
"""
Purpose:
Compute the expected hazard rate through Stripping
Input:
interest_rate compound interest rates
matrix the matrix of maturity and CDS Spread
LGD Loss Given Default
Maturity Vector of the CDS Maturities
Return value:
Fwd The forward hazard rate
"""
recoveryRate = 1 - LGD
settlementDate = ql.Date().todaysDate()
yts = ql.FlatForward(2, ql.TARGET(), interest_rate,
ql.Actual360()) #Rate of changing
#Maturities
CDS_tenors = [ql.Period(1, ql.Years), ql.Period(3, ql.Years), ql.Period(5, ql.Years), ql.Period(7, ql.Years), \
ql.Period(10, ql.Years)]
#Spread
Spread = [160, 180, 200, 210, 250]
CDSHelpers_ctpy = [ql.SpreadCdsHelper((CDS_spread / 10000.0), CDS_tenor, 0, ql.TARGET(), ql.Quarterly, ql.Following, \
ql.DateGeneration.TwentiethIMM, ql.Actual360(), recoveryRate, ql.YieldTermStructureHandle(yts))
for CDS_spread, CDS_tenor in zip(Spread, CDS_tenors)]
Fwd_Hazard_rate = ql.PiecewiseFlatHazardRate(settlementDate,
CDSHelpers_ctpy,
ql.Thirty360())
#pd_curve are tuples
print("Calibrated hazard rate values: ")
for x in Fwd_Hazard_rate.nodes():
print("fwd hazard rate on %s is %.7f" % x)
test = list(Fwd_Hazard_rate.nodes())
Fwd = []
for i in range(len(test)):
Fwd.append(list(test[i]))
Fwd.pop(0)
Fwd = np.array(Fwd)
return Fwd
def build_interest_curve(rate_risk_free):
"""Create interest curve"""
rate_risk_free = ql.SimpleQuote(rate_risk_free)
rate_risk_free_curve = ql.FlatForward(0, ql.TARGET(),
ql.QuoteHandle(rate_risk_free),
ql.Actual360())
return rate_risk_free_curve
def testOrStmt():
basis = 'Act/360'
# basis = ql.Actual360()
day_count = None
print(day_count, type(day_count))
day_count = basis if isinstance(basis, ql.DayCounter) else ql.Actual360()
print(day_count, type(day_count))
print(isinstance(day_count, ql.DayCounter))
class DayCount:
ACT360 = ql.Actual360()
ACT365Fixed = ql.Actual365Fixed()
_30360BB = ql.Thirty360(ql.Thirty360.BondBasis)
_30E360 = ql.Thirty360(ql.Thirty360.EurobondBasis)
_30360US = ql.Thirty360(ql.Thirty360.USA)
ACT365NL = ql.Actual365NoLeap()
ACTACT = ql.ActualActual()
def to_dayCounter(s):
if (s.upper() == 'ACTUAL360'): return ql.Actual360()
if (s.upper() == 'ACTUAL365FIXED'): return ql.Actual365Fixed()
if (s.upper() == 'ACTUALACTUAL'): return ql.ActualActual()
if (s.upper() == 'ACTUAL365NOLEAP'): return ql.Actual365NoLeap()
if (s.upper() == 'BUSINESS252'): return ql.Business252()
if (s.upper() == 'ONEDAYCOUNTER'): return ql.OneDayCounter()
if (s.upper() == 'SIMPLEDAYCOUNTER'): return ql.SimpleDayCounter()
if (s.upper() == 'THIRTY360'): return ql.Thirty360()
def makeInstrument(self, swapType, notional, start, maturity, index1,
index2, spread):
schedule1 = ql.MakeSchedule(start, maturity, index1.tenor())
leg1 = ql.IborLeg([notional], schedule1, index1)
schedule2 = ql.MakeSchedule(start, maturity, index1.tenor())
leg2 = ql.OvernightLeg([notional], schedule2, index2, ql.Actual360(),
ql.Following, [1], [spread], True)
return ql.Swap(leg1, leg2)
def defineParameters(self):
self.calendar = CalendarCl(2001,50)
self.day_counter = ql.Actual360()
self.settlement_days = 2
self.fixing_days = 0
self.ICP = ql.OvernightIndex("ICP",
self.settlement_days,
ql.CLPCurrency(),
self.calendar,
self.day_counter)
def __init__(self, ccy):
self.ccy = ccy
if self.ccy == 'USD':
self.calendar = ql.UnitedStates()
self.dayCounter = ql.Actual360()
self.depo = {
'settlementDays': 2,
'dayCounterConvention': ql.Actual360(),
'businessDayConvention': ql.ModifiedFollowing,
'EOM': False
}
self.futures = {
'settlementDays': 2,
'months': 3,
'dayCounterConvention': ql.Actual360(),
'businessDayConvention': ql.ModifiedFollowing,
'EOM': True
}
self.swap = {
'settlementDays': 2,
'fixedLegFrequency': ql.Semiannual,
'fixedLegTenor': ql.Period(6, ql.Months),
'fixedLegAdjustment': ql.Unadjusted,
'fixedLegDayCounter': ql.Actual360(),
'floatingLegFrequency': ql.Quarterly,
'floatingLegTenor': ql.Period(3, ql.Months),
'floatingLegAdjustment': ql.ModifiedFollowing,
'index': ql.USDLibor(ql.Period(3, ql.Months)),
'EOM': False
}
self.swaption = {
'fittable': [('1Y', '1Y'), ('1Y', '2Y'), ('1Y', '5Y'),
('1Y', '10Y'), ('1Y', '20Y'), ('2Y', '1Y'),
('2Y', '2Y'), ('2Y', '5Y'), ('2Y', '10Y'),
('2Y', '20Y'), ('5Y', '1Y'), ('5Y', '2Y'),
('5Y', '5Y'), ('5Y', '10Y'), ('5Y', '20Y'),
('10Y', '1Y'), ('10Y', '2Y'), ('10Y', '5Y'),
('10Y', '10Y'), ('10Y', '15Y'), ('20Y', '1Y'),
('20Y', '2Y'), ('20Y', '5Y'), ('15Y', '10Y')]
}
def timesteps(self):
if self._timesteps is None:
months = range(3, 12 * self.nb_years + 1, 3)
s_periods = [str(month) + "m" for month in months]
dates = [as_of_date
] + [as_of_date + ql.Period(s) for s in s_periods]
T = [0] + [
ql.Actual360().yearFraction(as_of_date, dates[i])
for i in range(1, len(dates))
]
self._timesteps = np.array(T)
return self._timesteps
def setUp(self):
self.calendar = ql.TARGET()
today = self.calendar.adjust(ql.Date.todaysDate())
self.settlementDays = 2
settlement = self.calendar.advance(today, self.settlementDays, ql.Days)
deposits = [
ql.DepositRateHelper(
ql.QuoteHandle(ql.SimpleQuote(rate / 100)),
ql.Period(n, units),
self.settlementDays,
self.calendar,
ql.ModifiedFollowing,
False,
ql.Actual360(),
) for (n, units, rate) in [
(1, ql.Months, 4.581),
(2, ql.Months, 4.573),
(3, ql.Months, 4.557),
(6, ql.Months, 4.496),
(9, ql.Months, 4.490),
]
]
swaps = [
ql.SwapRateHelper(
ql.QuoteHandle(ql.SimpleQuote(rate / 100)),
ql.Period(years, ql.Years),
self.calendar,
ql.Annual,
ql.Unadjusted,
ql.Thirty360(),
ql.Euribor6M(),
) for (years,
rate) in [(1, 4.54), (5, 4.99), (10,
5.47), (20,
5.89), (30, 5.96)]
]
self.termStructure = ql.PiecewiseFlatForward(settlement,
deposits + swaps,
ql.Actual360())
def str2dc(s):
s = s.lower()
if s=="actual365fixed" or s=="act365":
return ql.Actual365Fixed()
elif s=="actualactual" or s=="actact":
return ql.ActualActual()
elif s=="actual360" or s=="act360":
return ql.Actual360()
elif s=="Thirty360" or s=="30360":
return ql.Thirty360()
else:
print("Period String Error")
def plot(curve):
today = curve.referenceDate()
end = today + ql.Period(2, ql.Years)
dates = [
ql.Date(serial) for serial in range(today.serialNumber(),
end.serialNumber() + 1)
]
rates = [
curve.forwardRate(d,
ql.TARGET().advance(d, 1, ql.Days), ql.Actual360(),
ql.Simple).rate() for d in dates
]
plotCurve(dates, rates)
def _calculate_cc(self, date, spot_price, currency_curve, di_curve):
maturity_date = self._maturity_on_the_run(date)
future_price = currency_curve.exchange_rate_to_date(
date, maturity_date)
di = di_curve.zero_rate_to_date(date, maturity_date, ql.Compounded,
ql.Annual)
di_rate = ql.InterestRate(di, ql.Business252(), ql.Compounded,
ql.Annual)
date = to_ql_date(date)
compound = spot_price * di_rate.compoundFactor(
date, maturity_date) / future_price
rate = ql.InterestRate.impliedRate(compound, ql.Actual360(), ql.Simple,
ql.Annual, date, maturity_date)
return rate.rate()
def Prepare_BSM_Option(spot,
strike,
rd,
rf,
vol,
init_date,
exp_date,
type='call'):
today = qt.Date(init_date.day, init_date.month, init_date.year)
qt.Settings.instance().evaluationDate = today
if type == 'call':
option = qt.EuropeanOption(
qt.PlainVanillaPayoff(qt.Option.Call, strike),
qt.EuropeanExercise(
qt.Date(exp_date.day, exp_date.month, exp_date.year)))
else:
option = qt.EuropeanOption(
qt.PlainVanillaPayoff(qt.Option.Put, strike),
qt.EuropeanExercise(
qt.Date(exp_date.day, exp_date.month, exp_date.year)))
u = qt.SimpleQuote(spot)
rd = qt.SimpleQuote(rd)
rf = qt.SimpleQuote(rf)
sigma = qt.SimpleQuote(vol)
rf = qt.FlatForward(0, qt.TARGET(), qt.QuoteHandle(rf), qt.Actual360())
rd = qt.FlatForward(0, qt.TARGET(), qt.QuoteHandle(rd), qt.Actual360())
volatility = qt.BlackConstantVol(0, qt.TARGET(), qt.QuoteHandle(sigma),
qt.Actual360())
process = qt.GarmanKohlagenProcess(
qt.QuoteHandle(u), qt.YieldTermStructureHandle(rf),
qt.YieldTermStructureHandle(rd),
qt.BlackVolTermStructureHandle(volatility))
engine = qt.AnalyticEuropeanEngine(process)
option.setPricingEngine(engine)
return option
def plot3(curve):
today = curve.referenceDate()
dates = [today + ql.Period(i, ql.Months) for i in range(0, 12 * 60 + 1)]
rates = [
curve.forwardRate(d,
ql.TARGET().advance(d, 1, ql.Days), ql.Actual360(),
ql.Simple).rate() for d in dates
]
pydt = [
datetime.datetime(d.year(), d.month(), d.dayOfMonth()) for d in dates
]
fig, ax = plt.subplots()
fig.set_size_inches(12.5, 10.5)
l, = plt.plot(pydt, rates, '.', lw=2)
plt.show()
def testPiecewiseLinearZeroCurve(asOfDate, basis, curveId):
crv = builder.PiecewiseLinearZeroCurve(asOfDate, basis, curveId)
print(crv.dayCounter())
for node in crv.nodes():
print(node)
dates, rates = zip(*crv.nodes())
crv2 = ql.ZeroCurve(dates, rates, ql.Actual360())
spot = crv.referenceDate()
sample_dates = [spot + ql.Period(i, ql.Weeks) for i in range(15 * 52)]
z1 = [
crv.zeroRate(d, ql.Actual360(), ql.Continuous).rate()
for d in sample_dates
]
z2 = [
crv2.zeroRate(d, ql.Actual360(), ql.Continuous).rate()
for d in sample_dates
]
fig = plt.figure(figsize=(12, 6))
ax = fig.add_subplot(1, 1, 1)
ax.plot_date([d.to_date() for d in sample_dates], z1, '.')
ax.plot_date([d.to_date() for d in sample_dates], z2, '-')
plt.show()
def testPiecewiseLogCubicCurve(asOfDate, basis, curveId):
curve = builder.PiecewiseLogCubicDiscountCurve(asOfDate, basis, curveId)
today = curve.referenceDate()
end = today + ql.Period(2, ql.Years)
dates = [
ql.Date(serial) for serial in range(today.serialNumber(),
end.serialNumber() + 1)
]
rates = [
curve.forwardRate(d,
ql.TARGET().advance(d, 1, ql.Days), ql.Actual360(),
ql.Simple).rate() for d in dates
]
plotCurve(dates, rates, '.')
def makeSwap(self,
optionTenor,
swapTenor,
swapRate=None,
spread=0.0,
notional=1.0,
fixedLegTenor=ql.Period('6M'),
fixedLegDayCounter=ql.Actual360(),
endOfMonth=False):
self.optionTenor = optionTenor
self.swapTenor = swapTenor
self.notional = notional
self.strike = swapRate
self.fixedLegTenor = fixedLegTenor
self.fixedLegDayCounter = fixedLegDayCounter
self.endOfMonth = endOfMonth
self.exerciseDate = self.cal.advance(self.baseDate, optionTenor)
self.effectiveDate = self.cal.advance(self.exerciseDate,
self.settlementDays)
self.maturity = self.cal.advance(self.effectiveDate, swapTenor)
# schedule generation
self.fixedSchedule = ql.Schedule(self.effectiveDate, self.maturity,
self.fixedLegTenor, self.cal,
ql.ModifiedFollowing,
ql.ModifiedFollowing,
ql.DateGeneration.Forward, endOfMonth)
self.floatSchedule = ql.Schedule(self.effectiveDate, self.maturity,
self.iborIndex.tenor(), self.cal,
ql.ModifiedFollowing,
ql.ModifiedFollowing,
ql.DateGeneration.Forward, endOfMonth)
# make vanilla swap
self.payerSwap = ql.VanillaSwap(ql.VanillaSwap.Payer, notional,
self.fixedSchedule, swapRate,
self.fixedLegDayCounter,
self.floatSchedule, self.iborIndex,
spread, self.iborIndex.dayCounter())
self.receiverSwap = ql.VanillaSwap(ql.VanillaSwap.Receiver, notional,
self.fixedSchedule, swapRate,
self.fixedLegDayCounter,
self.floatSchedule, self.iborIndex,
spread, self.iborIndex.dayCounter())
swapEngine = ql.DiscountingSwapEngine(self.discountTermStructure)
self.payerSwap.setPricingEngine(swapEngine)
self.receiverSwap.setPricingEngine(swapEngine)
self.fairRate = self.payerSwap.fairRate()
def getForwardCurve(spotCurve):
today = spotCurve.referenceDate()
end = today + ql.Period(50, ql.Years)
dates = [
ql.Date(serial) for serial in range(today.serialNumber(),
end.serialNumber() + 1)
]
rates_c = [
spotCurve.forwardRate(d,
ql.TARGET().advance(d, 1, ql.Days),
ql.Actual360(), ql.Simple).rate()
for d in dates
]
return rates_c