| public impliedVolatility ( double targetValue, QLNet.GeneralizedBlackScholesProcess process, double accuracy, int maxEvaluations, double minVol, double maxVol ) : double | ||
| targetValue | double | |
| process | QLNet.GeneralizedBlackScholesProcess | |
| accuracy | double | |
| maxEvaluations | int | |
| minVol | double | |
| maxVol | double | |
| return | double | |
public static Greeks GetOptionOnFutureGreeks(double underlyingPrice, double strike, double riskFreeRate,
DateTime expirationDate, DateTime calculationDate, string optionType, string exerciseType,
double optionPrice = double.NaN, double impliedVol = 0.15, string engineName = "baw")
{
QLNet.Date ExpirationDateObj = new QLNet.Date(expirationDate.Day, expirationDate.Month, expirationDate.Year);
QLNet.Date CalculationDateObj = new QLNet.Date(calculationDate.Day, calculationDate.Month, calculationDate.Year);
QLNet.DayCounter DayCountObj = new QLNet.Actual365Fixed();
QLNet.Calendar CalendarObj = new QLNet.UnitedStates();
Greeks GreeksOutput = new Greeks();
QLNet.Option.Type OptionTypeObj;
QLNet.Exercise ExerciseObj;
double ImpliedVol;
double OptionPrice;
int CalDte = DayCountObj.dayCount(CalculationDateObj, ExpirationDateObj);
GreeksOutput.CalDte = CalDte;
if (!double.IsNaN(optionPrice))
{
if (optionType.ToUpper() == "C")
{
if (optionPrice + strike - underlyingPrice <= 1.0e-12)
{
GreeksOutput.Delta = 1;
return(GreeksOutput);
}
}
else if (optionType.ToUpper() == "P")
{
if (optionPrice - strike + underlyingPrice <= 1.0e-12)
{
GreeksOutput.Delta = -1;
return(GreeksOutput);
}
}
}
if (CalDte == 0)
{
if (optionType.ToUpper() == "C")
{
if (strike <= underlyingPrice)
{
GreeksOutput.Delta = 1;
}
else
{
GreeksOutput.Delta = 0;
}
}
else if (optionType.ToUpper() == "P")
{
if (strike >= underlyingPrice)
{
GreeksOutput.Delta = -1;
}
else
{
GreeksOutput.Delta = 0;
}
}
return(GreeksOutput);
}
if (optionType.ToUpper() == "C")
{
OptionTypeObj = QLNet.Option.Type.Call;
}
else if (optionType.ToUpper() == "P")
{
OptionTypeObj = QLNet.Option.Type.Put;
}
else
{
return(GreeksOutput);
}
if (exerciseType.ToUpper() == "E")
{
ExerciseObj = new QLNet.EuropeanExercise(ExpirationDateObj);
}
else if (exerciseType.ToUpper() == "A")
{
ExerciseObj = new QLNet.AmericanExercise(CalculationDateObj, ExpirationDateObj);
}
else
{
return(GreeksOutput);
}
QLNet.Settings.setEvaluationDate(CalculationDateObj);
QLNet.Handle <Quote> UnderlyingObj = new QLNet.Handle <Quote>(new QLNet.SimpleQuote(underlyingPrice));
QLNet.Handle <YieldTermStructure> FlatRateObj = new QLNet.Handle <YieldTermStructure>(new QLNet.FlatForward(CalculationDateObj, riskFreeRate, DayCountObj));
QLNet.Handle <BlackVolTermStructure> FlatVolTsObj = new QLNet.Handle <BlackVolTermStructure>(new QLNet.BlackConstantVol(CalculationDateObj, CalendarObj, impliedVol, DayCountObj));
QLNet.BlackProcess BlackProc = new QLNet.BlackProcess(UnderlyingObj, FlatRateObj, FlatVolTsObj);
QLNet.PlainVanillaPayoff PayoffObj = new QLNet.PlainVanillaPayoff(OptionTypeObj, strike);
QLNet.VanillaOption OptionObj = new QLNet.VanillaOption(PayoffObj, ExerciseObj);
if (engineName == "baw")
{
OptionObj.setPricingEngine(new QLNet.BaroneAdesiWhaleyApproximationEngine(BlackProc));
}
else if (engineName == "fda")
{
OptionObj.setPricingEngine(new QLNet.FDAmericanEngine(BlackProc, 100, 100));
}
else
{
return(GreeksOutput);
}
if (!double.IsNaN(optionPrice))
{
try
{
ImpliedVol = OptionObj.impliedVolatility(targetValue: optionPrice, process: BlackProc, accuracy: 1e-5);
}
catch
{
return(GreeksOutput);
}
FlatVolTsObj = new QLNet.Handle <BlackVolTermStructure>(new QLNet.BlackConstantVol(CalculationDateObj, CalendarObj, ImpliedVol, DayCountObj));
BlackProc = new QLNet.BlackProcess(UnderlyingObj, FlatRateObj, FlatVolTsObj);
if (engineName == "baw")
{
OptionObj.setPricingEngine(new QLNet.BaroneAdesiWhaleyApproximationEngine(BlackProc));
}
else if (engineName == "fda")
{
OptionObj.setPricingEngine(new QLNet.FDAmericanEngine(BlackProc, 100, 100));
}
OptionPrice = optionPrice;
}
else
{
OptionPrice = OptionObj.NPV();
ImpliedVol = impliedVol;
}
OptionObj = new QLNet.VanillaOption(PayoffObj, new QLNet.EuropeanExercise(ExpirationDateObj));
OptionObj.setPricingEngine(new QLNet.AnalyticEuropeanEngine(BlackProc));
GreeksOutput.Delta = OptionObj.delta();
GreeksOutput.Vega = OptionObj.vega();
GreeksOutput.Theta = OptionObj.thetaPerDay();
GreeksOutput.Gamma = OptionObj.gamma();
GreeksOutput.OptionPrice = OptionPrice;
GreeksOutput.ImpliedVol = ImpliedVol;
return(GreeksOutput);
}
public static Greeks GetOptionOnFutureGreeks(double underlyingPrice,double strike,double riskFreeRate,
DateTime expirationDate, DateTime calculationDate, string optionType, string exerciseType,
double optionPrice=double.NaN,double impliedVol=0.15,string engineName="baw")
{
QLNet.Date ExpirationDateObj = new QLNet.Date(expirationDate.Day, expirationDate.Month, expirationDate.Year);
QLNet.Date CalculationDateObj = new QLNet.Date(calculationDate.Day, calculationDate.Month, calculationDate.Year);
QLNet.DayCounter DayCountObj = new QLNet.Actual365Fixed();
QLNet.Calendar CalendarObj = new QLNet.UnitedStates();
Greeks GreeksOutput = new Greeks();
QLNet.Option.Type OptionTypeObj;
QLNet.Exercise ExerciseObj;
double ImpliedVol;
double OptionPrice;
int CalDte = DayCountObj.dayCount(CalculationDateObj, ExpirationDateObj);
GreeksOutput.CalDte = CalDte;
if (!double.IsNaN(optionPrice))
{
if (optionType.ToUpper() == "C")
{
if (optionPrice + strike - underlyingPrice <= 1.0e-12)
{
GreeksOutput.Delta = 1;
return GreeksOutput;
}
}
else if (optionType.ToUpper() == "P")
{
if (optionPrice - strike + underlyingPrice <= 1.0e-12)
{
GreeksOutput.Delta = -1;
return GreeksOutput;
}
}
}
if (CalDte == 0)
{
if (optionType.ToUpper() == "C")
{
if (strike <= underlyingPrice)
{
GreeksOutput.Delta = 1;
}
else
{
GreeksOutput.Delta = 0;
}
}
else if (optionType.ToUpper() == "P")
{
if (strike >= underlyingPrice)
{
GreeksOutput.Delta = -1;
}
else
{
GreeksOutput.Delta = 0;
}
}
return GreeksOutput;
}
if (optionType.ToUpper() == "C")
{
OptionTypeObj = QLNet.Option.Type.Call;
}
else if (optionType.ToUpper() == "P")
{
OptionTypeObj = QLNet.Option.Type.Put;
}
else
{
return GreeksOutput;
}
if (exerciseType.ToUpper() == "E")
{
ExerciseObj = new QLNet.EuropeanExercise(ExpirationDateObj);
}
else if (exerciseType.ToUpper() == "A")
{
ExerciseObj = new QLNet.AmericanExercise(CalculationDateObj, ExpirationDateObj);
}
else
{
return GreeksOutput;
}
QLNet.Settings.setEvaluationDate(CalculationDateObj);
QLNet.Handle<Quote> UnderlyingObj = new QLNet.Handle<Quote>(new QLNet.SimpleQuote(underlyingPrice));
QLNet.Handle<YieldTermStructure> FlatRateObj = new QLNet.Handle<YieldTermStructure>(new QLNet.FlatForward(CalculationDateObj, riskFreeRate, DayCountObj));
QLNet.Handle<BlackVolTermStructure> FlatVolTsObj = new QLNet.Handle<BlackVolTermStructure>(new QLNet.BlackConstantVol(CalculationDateObj, CalendarObj, impliedVol, DayCountObj));
QLNet.BlackProcess BlackProc = new QLNet.BlackProcess(UnderlyingObj, FlatRateObj, FlatVolTsObj);
QLNet.PlainVanillaPayoff PayoffObj = new QLNet.PlainVanillaPayoff(OptionTypeObj, strike);
QLNet.VanillaOption OptionObj = new QLNet.VanillaOption(PayoffObj, ExerciseObj);
if (engineName == "baw")
{
OptionObj.setPricingEngine(new QLNet.BaroneAdesiWhaleyApproximationEngine(BlackProc));
}
else if (engineName == "fda")
{
OptionObj.setPricingEngine(new QLNet.FDAmericanEngine(BlackProc, 100, 100));
}
else
{
return GreeksOutput;
}
if (!double.IsNaN(optionPrice))
{
try
{
ImpliedVol = OptionObj.impliedVolatility(targetValue:optionPrice, process:BlackProc,accuracy:1e-5);
}
catch
{
return GreeksOutput;
}
FlatVolTsObj = new QLNet.Handle<BlackVolTermStructure>(new QLNet.BlackConstantVol(CalculationDateObj, CalendarObj, ImpliedVol, DayCountObj));
BlackProc = new QLNet.BlackProcess(UnderlyingObj, FlatRateObj, FlatVolTsObj);
if (engineName == "baw")
{
OptionObj.setPricingEngine(new QLNet.BaroneAdesiWhaleyApproximationEngine(BlackProc));
}
else if (engineName == "fda")
{
OptionObj.setPricingEngine(new QLNet.FDAmericanEngine(BlackProc, 100, 100));
}
OptionPrice = optionPrice;
}
else
{
OptionPrice = OptionObj.NPV();
ImpliedVol = impliedVol;
}
OptionObj = new QLNet.VanillaOption(PayoffObj, new QLNet.EuropeanExercise(ExpirationDateObj));
OptionObj.setPricingEngine(new QLNet.AnalyticEuropeanEngine(BlackProc));
GreeksOutput.Delta = OptionObj.delta();
GreeksOutput.Vega = OptionObj.vega();
GreeksOutput.Theta = OptionObj.thetaPerDay();
GreeksOutput.Gamma = OptionObj.gamma();
GreeksOutput.OptionPrice = OptionPrice;
GreeksOutput.ImpliedVol = ImpliedVol;
return GreeksOutput;
}
