BlackVarianceCurve¶
- class BlackVarianceCurve(Date reference_date, list dates, vector[Volatility] black_vols, DayCounter day_counter, bool force_monotone_variance=True)¶
Bases:
BlackVarianceTermStructure
Black volatility curve modelled as variance curve
This class calculates time-dependent Black volatilities using as input a vector of (ATM) Black volatilities observed in the market.
The calculation is performed interpolating on the variance curve. Linear interpolation is used as default; this can be changed by the set_interpolation() method.
For strike dependence, see BlackVarianceSurface.
- Parameters:
- reference_dateDate
- dateslist of Date
- black_volslist of Volatility
- day_counter: DayCounter
- force_monotone_variance: bool
- Attributes:
- calendar
- extrapolation
- max_strike
- min_strike
- reference_date
- settlement_days
Methods
blackForwardVariance
(self, time_1, time_2, ...)forward (at-the-money) variance
blackForwardVol
(self, time_1, time_2, ...)forward (at-the-money) volatility
blackVariance
(self, maturity, Real strike, ...)spot variance
blackVol
(self, maturity, Real strike, ...)spot volatility
option_date_from_tenor
(self, Period period)time_from_reference
(self, Date date)