public InteractiveSeries Execute(double price, double time, InteractiveSeries smile, IOptionSeries optSer, double ratePct, int barNum)
{
int barsCount = ContextBarsCount;
if ((barNum < barsCount - 1) || (smile == null) || (optSer == null))
{
return(Constants.EmptySeries);
}
SmileInfo oldInfo = smile.GetTag <SmileInfo>();
if ((oldInfo == null) ||
(oldInfo.ContinuousFunction == null) || (oldInfo.ContinuousFunctionD1 == null))
{
return(Constants.EmptySeries);
}
int lastBarIndex = optSer.UnderlyingAsset.Bars.Count - 1;
DateTime now = optSer.UnderlyingAsset.Bars[Math.Min(barNum, lastBarIndex)].Date;
bool wasInitialized = HandlerInitializedToday(now);
double futPx = price;
double dT = time;
if (Double.IsNaN(dT) || (dT < Double.Epsilon))
{
// [{0}] Time to expiry must be positive value. dT:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.TimeMustBePositive", GetType().Name, dT);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, true);
}
return(Constants.EmptySeries);
}
if (Double.IsNaN(futPx) || (futPx < Double.Epsilon))
{
// [{0}] Base asset price must be positive value. F:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.FutPxMustBePositive", GetType().Name, futPx);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, true);
}
return(Constants.EmptySeries);
}
if (Double.IsNaN(ratePct))
{
//throw new ScriptException("Argument 'ratePct' contains NaN for some strange reason. rate:" + rate);
return(Constants.EmptySeries);
}
double ivAtm, slopeAtm;
if ((!oldInfo.ContinuousFunction.TryGetValue(futPx, out ivAtm)) ||
(!oldInfo.ContinuousFunctionD1.TryGetValue(futPx, out slopeAtm)))
{
return(Constants.EmptySeries);
}
if (m_setIvByHands)
{
ivAtm = m_ivAtmPct.Value / Constants.PctMult;
}
if (m_setSlopeByHands)
{
slopeAtm = m_internalSlopePct.Value / Constants.PctMult;
slopeAtm = slopeAtm / futPx / Math.Sqrt(dT);
}
if (Double.IsNaN(ivAtm) || (ivAtm < Double.Epsilon))
{
// [{0}] ivAtm must be positive value. ivAtm:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.IvAtmMustBePositive", GetType().Name, ivAtm);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, true);
}
return(Constants.EmptySeries);
}
if (Double.IsNaN(slopeAtm))
{
// [{0}] Smile skew at the money must be some number. skewAtm:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.SkewAtmMustBeNumber", GetType().Name, slopeAtm);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Error, true);
}
return(Constants.EmptySeries);
}
//{
// string msg = String.Format("[DEBUG:{0}] ivAtm:{1}; shift:{2}; depth:{3}; F:{4}; dT:{5}; ",
// GetType().Name, ivAtm, shift, depth, F, dT);
// context.Log(msg, MessageType.Info, true);
//}
SmileFunction3 tempFunc = new SmileFunction3(ivAtm, m_shift, 0.5, futPx, dT);
double depth = tempFunc.GetDepthUsingSlopeATM(slopeAtm);
SmileFunction3 smileFunc = new SmileFunction3(ivAtm, m_shift, depth, futPx, dT);
if (!m_setIvByHands)
{
m_ivAtmPct.Value = ivAtm * Constants.PctMult;
}
m_depthPct.Value = depth * Constants.PctMult;
if (!m_setSlopeByHands)
{
double dSigmaDx = slopeAtm * futPx * Math.Sqrt(dT);
m_internalSlopePct.Value = dSigmaDx * Constants.PctMult;
}
List <double> xs = new List <double>();
List <double> ys = new List <double>();
IOptionStrikePair[] pairs = optSer.GetStrikePairs().ToArray();
if (pairs.Length < 2)
{
string msg = String.Format("[{0}] optSer must contain few strike pairs. pairs.Length:{1}", GetType().Name, pairs.Length);
if (wasInitialized)
{
m_context.Log(msg, MessageType.Warning, true);
}
return(Constants.EmptySeries);
}
double minK = pairs[0].Strike;
double dK = pairs[1].Strike - pairs[0].Strike;
double width = (SigmaMult * ivAtm * Math.Sqrt(dT)) * futPx;
width = Math.Max(width, 2 * dK);
// Generate left invisible tail
if (m_generateTails)
{
GaussSmile.AppendLeftTail(smileFunc, xs, ys, minK, dK, false);
}
List <InteractiveObject> controlPoints = new List <InteractiveObject>();
for (int j = 0; j < pairs.Length; j++)
{
bool showPoint = true;
IOptionStrikePair pair = pairs[j];
// Сверхдалекие страйки игнорируем
if ((pair.Strike < futPx - width) || (futPx + width < pair.Strike))
{
showPoint = false;
}
double k = pair.Strike;
double sigma = smileFunc.Value(k);
double vol = sigma;
if (Double.IsNaN(sigma) || Double.IsInfinity(sigma) || (sigma < Double.Epsilon))
{
continue;
}
InteractivePointActive ip = new InteractivePointActive(k, vol);
//ip.Color = (optionPxMode == OptionPxMode.Ask) ? Colors.DarkOrange : Colors.DarkCyan;
//ip.DragableMode = DragableMode.None;
//ip.Geometry = Geometries.Rect; // (optionPxMode == OptionPxMode.Ask) ? Geometries.Rect : Geometries.Rect;
// Иначе неправильно выставляются координаты???
//ip.Tooltip = String.Format("K:{0}; IV:{1:0.00}", k, PctMult * sigma);
if (showPoint)
{
if (k <= futPx) // Puts
{
FillNodeInfo(ip, futPx, dT, pair, StrikeType.Put, OptionPxMode.Mid, sigma, false, m_isVisiblePoints, ratePct);
}
else // Calls
{
FillNodeInfo(ip, futPx, dT, pair, StrikeType.Call, OptionPxMode.Mid, sigma, false, m_isVisiblePoints, ratePct);
}
}
InteractiveObject obj = new InteractiveObject(ip);
if (showPoint)
{
controlPoints.Add(obj);
}
xs.Add(k);
ys.Add(vol);
}
// ReSharper disable once UseObjectOrCollectionInitializer
InteractiveSeries res = new InteractiveSeries();
res.ControlPoints = new ReadOnlyCollection <InteractiveObject>(controlPoints);
double maxK = pairs[pairs.Length - 1].Strike;
// Generate right invisible tail
if (m_generateTails)
{
GaussSmile.AppendRightTail(smileFunc, xs, ys, maxK, dK, false);
}
var baseSec = optSer.UnderlyingAsset;
DateTime scriptTime = baseSec.Bars[baseSec.Bars.Count - 1].Date;
// ReSharper disable once UseObjectOrCollectionInitializer
SmileInfo info = new SmileInfo();
info.F = futPx;
info.dT = dT;
info.Expiry = optSer.ExpirationDate;
info.ScriptTime = scriptTime;
info.RiskFreeRate = ratePct;
info.BaseTicker = baseSec.Symbol;
info.ContinuousFunction = smileFunc;
info.ContinuousFunctionD1 = smileFunc.DeriveD1();
res.Tag = info;
SetHandlerInitialized(now);
return(res);
}
public InteractiveSeries Execute(double price, double time, IOptionSeries optSer, int barNum)
{
int barsCount = ContextBarsCount;
if (barNum < barsCount - 1)
{
return(Constants.EmptySeries);
}
double f = price;
double dT = time;
if (Double.IsNaN(dT) || (dT < Double.Epsilon))
{
// [{0}] Time to expiry must be positive value. dT:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.TimeMustBePositive", GetType().Name, dT);
m_context.Log(msg, MessageType.Error, true);
return(Constants.EmptySeries);
}
if (Double.IsNaN(f) || (f < Double.Epsilon))
{
// [{0}] Base asset price must be positive value. F:{1}
string msg = RM.GetStringFormat("OptHandlerMsg.FutPxMustBePositive", GetType().Name, f);
m_context.Log(msg, MessageType.Error, true);
return(Constants.EmptySeries);
}
//{
// string msg = String.Format("[DEBUG:{0}] ivAtm:{1}; shift:{2}; depth:{3}; F:{4}; dT:{5}; ",
// GetType().Name, ivAtm, shift, depth, F, dT);
// context.Log(msg, MessageType.Info, true);
//}
SmileFunction3 smileFunc = new SmileFunction3(m_ivAtm, m_shift, m_depth, f, dT);
List <double> xs = new List <double>();
List <double> ys = new List <double>();
IOptionStrikePair[] pairs = optSer.GetStrikePairs().ToArray();
if (pairs.Length < 2)
{
string msg = String.Format("[WARNING:{0}] optSer must contain few strike pairs. pairs.Length:{1}", GetType().Name, pairs.Length);
m_context.Log(msg, MessageType.Warning, true);
return(Constants.EmptySeries);
}
double minK = pairs[0].Strike;
double dK = pairs[1].Strike - pairs[0].Strike;
// Generate left invisible tail
if (m_generateTails)
{
AppendLeftTail(smileFunc, xs, ys, minK, dK, false);
}
List <InteractiveObject> controlPoints = new List <InteractiveObject>();
for (int j = 0; j < pairs.Length; j++)
{
bool showPoint = true;
IOptionStrikePair pair = pairs[j];
// Сверхдалекие страйки игнорируем
if ((pair.Strike < m_minStrike) || (m_maxStrike < pair.Strike))
{
showPoint = false;
}
double k = pair.Strike;
double sigma = smileFunc.Value(k);
double vol = sigma;
InteractivePointActive ip = new InteractivePointActive(k, vol);
//ip.Color = (optionPxMode == OptionPxMode.Ask) ? Colors.DarkOrange : Colors.DarkCyan;
//ip.DragableMode = DragableMode.None;
//ip.Geometry = Geometries.Rect; // (optionPxMode == OptionPxMode.Ask) ? Geometries.Rect : Geometries.Rect;
// Иначе неправильно выставляются координаты???
//ip.Tooltip = String.Format("K:{0}; IV:{1:0.00}", k, PctMult * sigma);
if (showPoint)
{
if (k <= f) // Puts
{
FillNodeInfo(ip, f, dT, pair, StrikeType.Put, OptionPxMode.Mid, sigma, false, m_isVisiblePoints);
}
else // Calls
{
FillNodeInfo(ip, f, dT, pair, StrikeType.Call, OptionPxMode.Mid, sigma, false, m_isVisiblePoints);
}
}
InteractiveObject obj = new InteractiveObject(ip);
if (showPoint)
{
controlPoints.Add(obj);
}
xs.Add(k);
ys.Add(vol);
}
// ReSharper disable once UseObjectOrCollectionInitializer
InteractiveSeries res = new InteractiveSeries(); // Здесь так надо -- мы делаем новую улыбку
res.ControlPoints = new ReadOnlyCollection <InteractiveObject>(controlPoints);
double maxK = pairs[pairs.Length - 1].Strike;
// Generate right invisible tail
if (m_generateTails)
{
AppendRightTail(smileFunc, xs, ys, maxK, dK, false);
}
// ReSharper disable once UseObjectOrCollectionInitializer
SmileInfo info = new SmileInfo();
info.F = f;
info.dT = dT;
info.RiskFreeRate = 0;
info.ContinuousFunction = smileFunc;
info.ContinuousFunctionD1 = smileFunc.DeriveD1();
res.Tag = info;
return(res);
}