public static void CorrelateExposureBars(this PortfolioSimulation sim, Correlation c)
{
double count = c.Component1.LongExposureBars.Count;
if (c.Component1.LongExposureBars.Count != count)
{
throw new Exception($"Mismatched number of bars between {c.Component2.ComponentId} ({count}) and {c.Component2.ComponentId} ({c.Component1.LongExposureBars.Count})");
}
double highSum = 0;
double lowSum = 0;
//double pow = 2;
for (int i = 0; i < count; i++)
{
//highSum += Math.Pow(Math.Abs(c.Component1.LongExposureBars[i].High - c.Component2.LongExposureBars[i].High), pow);
//lowSum += Math.Pow(Math.Abs(c.Component1.LongExposureBars[i].Low - c.Component2.LongExposureBars[i].Low), pow);
highSum += Math.Abs(c.Component1.LongExposureBars[i].High - c.Component2.LongExposureBars[i].High);
lowSum += Math.Abs(c.Component1.LongExposureBars[i].Low - c.Component2.LongExposureBars[i].Low);
//weightedSum += Math.Pow(Math.Abs(c.Component1.LongExposureBars[i].Low - c.Component2.LongExposureBars[i].Low), pow);
}
//c.HighScore = Math.Sqrt(highSum);
//c.LowScore = Math.Sqrt(highSum);
c.HighScore = highSum / count;
c.LowScore = lowSum / count;
}
public static void WriteLineVerbosity(this PortfolioSimulation sim, string msg, int verbosityLevel = 1)
{
if (sim.Options.Verbosity >= verbosityLevel)
{
WriteLine(msg);
}
}
public static async Task <PortfolioSimulation> Simulate(Portfolio portfolio, PortfolioAnalysisOptions options, CancellationToken?token = null)
{
var sim = new PortfolioSimulation(portfolio, options);
await new PortfolioSimulator(sim).Simulate(token);
return(sim);
}
public static Correlation GetCorrelation(this PortfolioSimulation sim, string correlationId)
{
var chunks = correlationId.Split('|');
var c = new Correlation(sim.Portfolio.FindComponent(chunks[0]), sim.Portfolio.FindComponent(chunks[1]));
foreach (var component in c.Components)
{
if (!component.NormalizationMultiplier.HasValue)
{
component.UpdateComponentNormalizationMultiplier(sim);
}
}
return(c);
}
public PortfolioSimulator(PortfolioSimulation sim)
{
this.Sim = sim;
if (Sim == null)
{
throw new ArgumentNullException("Sim must be set");
}
this.Options = sim.Options;
if (sim.Options == null)
{
throw new ArgumentNullException("Sim.Options must be set");
}
//this.log = Log.Get();
this.log = this.GetLogger();
}
private static double NormalizeVolumeSource(PortfolioSimulation sim, PortfolioComponent component, double unnormalizedVolume)
{
double value = unnormalizedVolume * component.NormalizationMultiplier.Value;
#if DEBUG
if (sim.Options.VolumeNormalization.MaxSourceValue.HasValue && value > sim.Options.VolumeNormalization.MaxSourceValue.Value)
{
if (sim.Options.Verbosity >= 6)
{
Console.WriteLine($"Capping normalized volume of {value} to max: {sim.Options.VolumeNormalization.MaxSourceValue.Value}");
}
}
#endif
value = Math.Min(value, sim.Options.VolumeNormalization.MaxSourceValue.Value);
return(value);
}
public static void CorrelateTimeInMarket(this PortfolioSimulation sim, Correlation c)
{
IEnumerable <PortfolioHistoricalTradeVM> AllTrades = c.Components
.Select(b => b.Trades.OfType <_HistoricalTrade>().Select(t => new PortfolioHistoricalTradeVM {
Trade = t, Component = b
}))
.SelectMany(v => v);
var tradeEvents = AllTrades.Select(t => new TradeEnterExitEvent {
Enter = true, Time = t.Trade.EntryTime, Trade = t
})
.Concat(AllTrades.Select(t => new TradeEnterExitEvent {
Enter = false, Time = t.Trade.ClosingTime, Trade = t
}))
.OrderBy(e => e.Time);
//var TradesByEntryTime = AllTrades
// .OrderBy(t => t.Trade.EntryTime)
// .ToList();
// TODO: Normalized versions of these that are rated versus the max normalized score (which should be 1)
TimeSpan BothLong = TimeSpan.Zero;
TimeSpan BothShort = TimeSpan.Zero;
TimeSpan OppositeDirection = TimeSpan.Zero;
TimeSpan OffsettingNonZero = TimeSpan.Zero;
TimeSpan BothFlat = TimeSpan.Zero;
TimeSpan OneOpen = TimeSpan.Zero;
// Not sure if this is useful yet.
double MultipliedByDifference = 0;
var openTrades = new List <PortfolioHistoricalTradeVM>();
double netVolume1 = 0;
double netVolume2 = 0;
double normalizedNetVolume1 = 0;
double normalizedNetVolume2 = 0;
double delta = normalizedNetVolume2 - normalizedNetVolume1;
DateTime simTime = sim.Portfolio.Start.Value;
TimeSpan totalTime;
foreach (var e in tradeEvents)
{
#region Time Delta
TimeSpan timeDelta;
if (sim.Options.StartTime != default && e.Time < sim.Options.StartTime)
{
timeDelta = e.Time - sim.Options.StartTime;
}
else if (sim.Options.EndTime != default && e.Time > sim.Options.EndTime)
{
timeDelta = sim.Options.StartTime - e.Time;
}
else
{
timeDelta = e.Time - simTime;
}
if (timeDelta < TimeSpan.Zero)
{
continue; // If equal to zero, keep going, since there may be multiple events at the same bar opens.
}
totalTime += timeDelta;
#endregion
#region Collect stats from previous time delta
#if DEBUG
if (sim.Options.Verbosity >= 5)
{
WriteLine($"1: {normalizedNetVolume1} 2: {normalizedNetVolume2}");
}
#endif
// TODO NEXT: for the period of time between simTime and trade entry time (timeDelta), multiply this period of time by the volume delta over that time.
if (normalizedNetVolume2 > 0 && normalizedNetVolume1 > 0)
{
BothLong += timeDelta;
}
else if (normalizedNetVolume2 < 0 && normalizedNetVolume1 < 0)
{
BothShort += timeDelta;
}
else if (normalizedNetVolume2 == 0 && normalizedNetVolume1 == 0)
{
BothFlat += timeDelta;
}
if (normalizedNetVolume2 < 0 && normalizedNetVolume1 > 0 ||
normalizedNetVolume2 < 0 && normalizedNetVolume1 > 0)
{
OppositeDirection += timeDelta;
}
else if (normalizedNetVolume2 != 0 && normalizedNetVolume1 == 0 ||
normalizedNetVolume2 == 0 && normalizedNetVolume1 != 0)
{
OneOpen += timeDelta;
}
// Another idea: non-zero, offsetting
if (normalizedNetVolume2 != 0 && normalizedNetVolume1 == -normalizedNetVolume2)
{
OffsettingNonZero += timeDelta;
}
// These two normalized volumes should be normalized to -1 to +1.
//MillisecondsMultipliedByDifference += timeDelta.TotalMilliseconds * (normalizedNetVolume2 - normalizedNetVolume1);
MultipliedByDifference += timeDelta.TotalMilliseconds * Math.Pow(normalizedNetVolume2 - normalizedNetVolume1, 2);
#endregion
if (sim.Options.EndTime != default && simTime >= sim.Options.EndTime)
{
break;
}
#region Process the trade open/close event
if (e.Enter)
{
sim.WriteLineVerbosity("OPEN trade:" + e.Trade.Trade.NetVolume, 5);
openTrades.Add(e.Trade);
}
else
{
sim.WriteLineVerbosity("CLOSE trade:" + e.Trade.Trade.NetVolume, 5);
if (!openTrades.Remove(e.Trade))
{
WriteLine("[correlation] Removing from open trades - NOT FOUND: " + e + $" (entry time: {e.Trade.Trade.EntryTime})");
}
}
#endregion
#region Set up state for the next trade:
netVolume1 = 0;
netVolume2 = 0;
normalizedNetVolume1 = 0;
normalizedNetVolume2 = 0;
foreach (var t in openTrades)
{
if (t.Component.ComponentId == c.Component1.ComponentId)
{
var volumeDelta = t.Trade.TradeType == TradeType.Buy ? t.Trade.Volume : -t.Trade.Volume;
netVolume1 += t.Trade.TradeType == TradeType.Buy ? t.Trade.Volume : -t.Trade.Volume;
normalizedNetVolume1 += PortfolioNormalization.NormalizeVolume(t, sim, CorrelationNormalizationOptions);
normalizedNetVolume1 = netVolume1;
}
else
{
#if DEBUG
if (t.Component.ComponentId != c.Component2.ComponentId)
{
throw new UnreachableCodeException();
}
#endif
netVolume2 += t.Trade.TradeType == TradeType.Buy ? t.Trade.Volume : -t.Trade.Volume;
normalizedNetVolume2 += PortfolioNormalization.NormalizeVolume(t, sim, CorrelationNormalizationOptions);
normalizedNetVolume2 = netVolume2;
}
}
delta = normalizedNetVolume2 - normalizedNetVolume1;
simTime = e.Time;
#endregion
}
//var PositionSimilarityScore = String.Format(sim.Options.NumberFormat, ((BothLong + BothShort) - Opposite).TotalMilliseconds / totalTime.TotalMilliseconds);
//var PositioningSimilarityScore = String.Format(sim.Options.NumberFormat, ((BothLong + BothShort + BothFlat) - Opposite).TotalMilliseconds / totalTime.TotalMilliseconds);
var SameDir = BothLong + BothShort;
var BothOpen = SameDir + OppositeDirection;
var BothSamePositioning = BothOpen + BothFlat;
WriteLine(new
{
TotalTime = totalTime,
BothFlat,
BothLong,
BothShort,
OppositeDirection,
BothOpen,
SameDir,
//OffsettingNonZero,
BothFlatPc = (BothFlat.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
BothLongPc = (BothLong.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
BothShortPc = (BothShort.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
SameDirPc = (SameDir.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
OppositeDirectionPc = (OppositeDirection.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
BothOpenPc = (BothOpen.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
OffsettingNonZeroPc = (OffsettingNonZero.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
//OppositePc = (Opposite.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
SameDirectionSimilarityPc = ((SameDir).TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString()
+ " / " + (BothOpen.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
OppositeDirectionSimilarityPc = ((OppositeDirection).TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString()
+ " / " + (BothOpen.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
OpenDirectionNetSimilarityPc = ((SameDir - OppositeDirection).TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString()
+ " / " + (BothOpen.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
// TODO: same as OpenDirectionNetSimilarityPc but use normalized volumes:
//NetAmplifyingOrHedgingPc = ((SameDir - OppositeDirection).TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString()
// + " / " + (BothOpen.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
SimilarityWhenSharedDirectionPc = ((BothSamePositioning - OppositeDirection).TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString()
+ " / " + (BothSamePositioning.TotalMilliseconds / totalTime.TotalMilliseconds).ToPercentString(),
DifferenceScore = Math.Sqrt(MultipliedByDifference / totalTime.TotalMilliseconds),
}.DumpProperties("Time in market"));
}
/// <summary>
/// Gets the multiplier by which all trade volumes from this component are multipied before using in portfolio and correlation analysis.
/// </summary>
public static void UpdateComponentNormalizationMultiplier(this PortfolioComponent component, PortfolioSimulation sim)
{
double multiplier = 1.0;
var minTradeVolumeForSymbol = component.SymbolHandle.GetMinTradeVolumeForSymbol();
if (sim.Options.VolumeNormalization.ReductionMode?.HasFlag(VolumeNormalizationReductionMode.DivideByMinimumsMultipleOfMinimumAllowedTradeSize) == true)
{
var min = component.MinAbsoluteVolume;
if (min > minTradeVolumeForSymbol)
{
multiplier *= minTradeVolumeForSymbol / min;
#if DEBUG
if (sim.Options.Verbosity >= 5)
{
Console.WriteLine($"[VolumeNormalize] component absolute min: {min}, min for symbol {component.BacktestResult.Symbol}: {minTradeVolumeForSymbol}, multiplier: {multiplier}");
}
#endif
}
}
if (sim.Options.VolumeNormalization.ReductionMode?.HasFlag(VolumeNormalizationReductionMode.DivideByMinimumAllowedTradeVolume) == true)
{
multiplier /= minTradeVolumeForSymbol;
}
component.NormalizationMultiplier = multiplier;
}
/// <param name="trade"></param>
/// <param name="sim"></param>
/// <returns>Returns negative numbers for Sell trades.</returns>
public static double NormalizeVolume(PortfolioHistoricalTradeVM trade, PortfolioSimulation sim, VolumeNormalizationOptions normalizationOptions = null)
{
// Note: Volume is used here instead of NetVolume, to have positive volumes for both buy and sell trades
var normalizedTradeVolume = NormalizeVolumeSource(sim, trade.Component, trade.Trade.Volume);
#if DEBUG
if (sim.Options.Verbosity >= 5)
{
Console.WriteLine($"[normalize] {trade.Trade.SymbolCode} normalized volume source from ({trade.Trade.TradeType.ToString()}) {trade.Trade.Volume} to {normalizedTradeVolume}");
}
#endif
if ((normalizationOptions?.MaxMode ?? sim.Options.VolumeNormalization.MaxMode).Value != VolumeNormalizationTargetMode.None)
{
double max = normalizationOptions?.Max ?? sim.Options.VolumeNormalization.Max ?? trade.Component.MaxAbsoluteVolume;
//switch (mode ?? sim.Options.VolumeNormalization.VolumeNormalizationTargetMax)
//{
// case PortfolioNormalizationTargetMaxMode.None:
// //var componentMaxNormalizedVolume = NormalizeVolumeSource(sim, trade.Component, trade.Component.MaxAbsoluteVolume);
// //max = componentMaxNormalizedVolume;
// //max =
// break;
// case PortfolioNormalizationTargetMaxMode.ToConstant:
// max = ;
// break;
// //case PortfolioNormalizationTargetMaxMode.
// //case PortfolioNormalizationTargetMaxMode.ScaleToMinTradeVolume:
// // max =
// // value =
// // if (trade.Trade.TradeType == TradeType.Sell) value *= -1;
// // break;
// //case PortfolioNormalizationTargetMaxMode.ToBacktestMaxTradeSize:
// // value = trade.Trade.Volume / trade.Component.MaxAbsoluteVolume;
// // if (trade.Trade.TradeType == TradeType.Sell) value *= -1;
// // break;
// ////case PortfolioNormalizationMode.ToBacktestConfiguredMaxTradeSize:
// //// throw new NotImplementedException();
// //// break;
// default:
// //case PortfolioNormalizationMode.Unspecified:
// throw new ArgumentException(nameof(sim.Options.VolumeNormalization.VolumeNormalizationTargetMax));
//}
switch (sim.Options.VolumeNormalization.Curve)
{
case PortfolioNormalizationCurveType.Linear:
normalizedTradeVolume = trade.Trade.TradeType == TradeType.Buy ? trade.Trade.Volume : -trade.Trade.Volume;
break;
case PortfolioNormalizationCurveType.Step:
normalizedTradeVolume = normalizedTradeVolume >= sim.Options.VolumeNormalization.StepThreshold ? max : 0;
break;
case PortfolioNormalizationCurveType.EaseIn:
{
double normalizedTo1 = normalizedTradeVolume / max;
normalizedTradeVolume = max * Math.Pow(normalizedTo1, sim.Options.VolumeNormalization.EasingExponent ?? VolumeNormalizationOptions.DefaultEasingExponent);
break;
}
case PortfolioNormalizationCurveType.EaseOut:
{
double normalizedTo1 = normalizedTradeVolume / max;
normalizedTradeVolume = max * Math.Pow(1 - (1 - normalizedTo1), sim.Options.VolumeNormalization.EasingExponent ?? VolumeNormalizationOptions.DefaultEasingExponent);
break;
}
//case PortfolioNormalizationCurveType.Unspecified:
default:
break;
}
}
if (trade.Trade.TradeType == TradeType.Sell)
{
normalizedTradeVolume *= -1;
}
#if DEBUG
if (sim.Options.Verbosity >= 0)
{
if (trade.Trade.Volume != 1)
{
Console.WriteLine($"[NORMALIZE] {trade.Trade.SymbolCode} normalized volume from ({trade.Trade.TradeType.ToString()}) {trade.Trade.Volume} to {normalizedTradeVolume} (final)");
}
}
#endif
return(normalizedTradeVolume);
}
