private bool TryOpenMoreDeals(double bottomAsk, double topBid, double spreadToOpen)
{
int zoneIndex = OrderGrid.GetZoneIndex(spreadToOpen);
if (zoneIndex == -1)
{
return(false);
}
double baseAmount = GetRemainAmountForZoneInBaseCurrency(zoneIndex);
if (baseAmount == 0)
{
return(false);
}
double buyAmount = CalculateLongBuyAmountByBaseAmount(baseAmount);
double actualBuyAmount = GetActualBottomAskAmount(bottomAsk);
double finalBuyAmount = Math.Min(buyAmount, actualBuyAmount);
double requiredShortSellAmount = CalculateRequiredShortAmount(finalBuyAmount, spreadToOpen);
double availableShortSellAmount = GetActualShortBidAmount(topBid);
double finalSellAmount = Math.Min(requiredShortSellAmount, availableShortSellAmount);
if (finalSellAmount < requiredShortSellAmount)
{
finalSellAmount = availableShortSellAmount;
finalBuyAmount = CalculateRequiredLongAmount(finalSellAmount, spreadToOpen);
}
MarketBuy(Long, bottomAsk, finalBuyAmount);
MarketSell(Short, topBid, finalSellAmount);
var order = new StatisticalArbitrageOrderInfo()
{
LongAmount = finalBuyAmount,
LongValue = bottomAsk,
ShortAmount = finalSellAmount,
ShortTotalAmount = finalSellAmount,
ShortValue = topBid,
ZoneIndex = zoneIndex,
SpentDeposit = Long.HighestBidInBaseCurrency() * finalBuyAmount,
Spread = spreadToOpen
};
LastItem = new StatisticalArbitrageHistoryItem();
LastItem.Time = DateTime.UtcNow;
LastItem.Earned = Earned;
LastItem.LongPrice = bottomAsk;
LastItem.ShortPrice = topBid;
LastItem.LongAmount = finalBuyAmount;
LastItem.ShortAmount = finalSellAmount;
LastItem.Open = true;
StrategyData.Add(LastItem);
//OpenedOrders.Add(order);
OnOrderOpened(LastItem);
return(true);
}
private double CalculateRequiredShortAmount(double buyAmount, double spread)
{
return((buyAmount * Long.HighestBidInBaseCurrency() + spread * buyAmount) / Short.LowestAskInBaseCurrency());
}
private double CalculateRequiredLongAmount(double sellAmount, double spread)
{
return(sellAmount * Short.LowestAskInBaseCurrency() / (Long.HighestBidInBaseCurrency() + spread));
}
private double CalculateLongBuyAmountByBaseAmount(double baseAmount)
{
return(baseAmount / Long.HighestBidInBaseCurrency());
}
private bool TryOpenMoreDeals(double bottomAsk, double topBid, double spreadToOpen)
{
if (spreadToOpen < SpreadOpenPosition)
{
return(false);
}
//int zoneIndex = OrderGrid.GetZoneIndex(spreadToOpen);
//if(zoneIndex == -1)
// return false;
//double baseAmount = GetRemainAmountForZoneInBaseCurrency(zoneIndex);
//if(baseAmount == 0)
// return false;
double baseAmount = MaxAllowedDeposit * 0.9;
double buyAmount = CalculateLongBuyAmountByBaseAmount(baseAmount);
double actualBuyAmount = GetActualBottomAskAmount(bottomAsk);
double finalBuyAmount = Math.Min(buyAmount, actualBuyAmount);
double requiredShortSellAmount = CalculateRequiredShortAmount(finalBuyAmount, spreadToOpen);
double availableShortSellAmount = GetActualShortBidAmount(topBid);
double finalSellAmount = Math.Min(requiredShortSellAmount, availableShortSellAmount);
if (finalSellAmount < requiredShortSellAmount)
{
finalSellAmount = availableShortSellAmount;
finalBuyAmount = CalculateRequiredLongAmount(finalSellAmount, spreadToOpen);
}
if (finalBuyAmount == 0 || finalSellAmount == 0 || finalBuyAmount * bottomAsk < MinDepositForOpenPosition)
{
return(false);
}
var order = new StatisticalArbitrageOrderInfo()
{
ShortValue = topBid,
SpentDeposit = Long.HighestBidInBaseCurrency() * finalBuyAmount,
Spread = spreadToOpen
};
if (Long.SpentInBaseCurrency(bottomAsk, finalBuyAmount) * 1.05 > MaxAllowedDeposit)
{
LogManager.Default.Add(LogType.Error, this, Name, "not enough deposit for open long position", "spent = " + Long.SpentInBaseCurrency(bottomAsk, finalBuyAmount) + " in " + Long.BaseCurrency + "; deposit = " + MaxAllowedDeposit);
return(false);
}
if (Short.SpentInBaseCurrency(topBid, finalSellAmount) * 1.05 > GetMaxAllowedShortDeposit())
{
LogManager.Default.Add(LogType.Error, this, Name, "not enough deposit for open long position", "spent = " + Short.SpentInBaseCurrency(topBid, finalSellAmount) + " in " + Short.BaseCurrency + "; deposit = " + GetMaxAllowedShortDeposit());
return(false);
}
OpenedPairs.Add(order);
OpenPositionInfo lp = OpenLongPosition(Long, "OL", bottomAsk, finalBuyAmount, 1000);
if (lp == null)
{
OpenedPairs.Remove(order);
LogManager.Default.Add(LogType.Error, this, Name, "failed open long position", "price = " + bottomAsk + "; amount = " + finalBuyAmount + "; spent = " + Long.SpentInBaseCurrency(bottomAsk, finalBuyAmount) + " in " + Long.BaseCurrency);
return(false);
}
OpenPositionInfo sp = OpenShortPosition(Short, "OS", topBid, finalSellAmount, 1000);
if (sp == null)
{
OpenedPairs.Remove(order);
LogManager.Default.Add(LogType.Error, this, Name, "failed open short position", "price = " + topBid + "; amount = " + finalSellAmount + "; spent = " + Short.SpentInBaseCurrency(topBid, finalSellAmount));
return(false);
}
order.LongPosition = lp;
order.ShortPosition = sp;
order.LongAmount = lp.OpenAmount;
order.LongValue = lp.OpenValue;
order.ShortAmount = sp.OpenAmount;
order.ShortTotalAmount = sp.OpenValue;
LastItem = new StatisticalArbitrageHistoryItem();
LastItem.OpenedPositions.Add(order.LongPosition);
LastItem.OpenedPositions.Add(order.ShortPosition);
LastItem.Time = DataProvider.CurrentTime;
LastItem.Earned = Earned;
LastItem.LongBid = Long.OrderBook.HighestBid;
LastItem.LongAsk = bottomAsk;
LastItem.ShortBid = topBid;
LastItem.ShortAsk = Short.OrderBook.LowestAsk;
LastItem.LongAmount = finalBuyAmount;
LastItem.ShortAmount = finalSellAmount;
LastItem.Open = true;
LastItem.Index = StrategyData.Count;
LastItem.Mark = "OPEN";
StrategyData.Add(LastItem);
//OpenedOrders.Add(order);
OnOrderOpened(LastItem);
return(true);
}
