/// <summary>
/// Get the maximum market order quantity to obtain a position with a given value in account currency
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The security to be traded</param>
/// <param name="targetPortfolioValue">The value in account currency that we want our holding to have</param>
/// <returns>Returns the maximum allowed market order quantity</returns>
public decimal GetMaximumOrderQuantityForTargetValue(SecurityPortfolioManager portfolio, Security security, decimal targetPortfolioValue)
{
// no shorting allowed
if (targetPortfolioValue < 0)
{
return(0);
}
var baseCurrency = security as IBaseCurrencySymbol;
if (baseCurrency == null)
{
return(0);
}
// if target value is zero, return amount of base currency available to sell
if (targetPortfolioValue == 0)
{
return(-portfolio.CashBook[baseCurrency.BaseCurrencySymbol].Amount);
}
// convert base currency cash to account currency
var baseCurrencyPosition = portfolio.CashBook.ConvertToAccountCurrency(
portfolio.CashBook[baseCurrency.BaseCurrencySymbol].Amount,
baseCurrency.BaseCurrencySymbol);
// convert quote currency cash to account currency
var quoteCurrencyPosition = portfolio.CashBook.ConvertToAccountCurrency(
portfolio.CashBook[security.QuoteCurrency.Symbol].Amount,
security.QuoteCurrency.Symbol);
// determine the unit price in terms of the account currency
var unitPrice = new MarketOrder(security.Symbol, 1, DateTime.UtcNow).GetValue(security);
if (unitPrice == 0)
{
return(0);
}
// remove directionality, we'll work in the land of absolutes
var targetOrderValue = Math.Abs(targetPortfolioValue - baseCurrencyPosition);
var direction = targetPortfolioValue > baseCurrencyPosition ? OrderDirection.Buy : OrderDirection.Sell;
// calculate the total cash available
var cashRemaining = direction == OrderDirection.Buy ? quoteCurrencyPosition : baseCurrencyPosition;
if (cashRemaining <= 0)
{
return(0);
}
// continue iterating while we do not have enough cash for the order
decimal cashRequired;
decimal orderValue;
decimal orderFees;
var feeToPriceRatio = 0m;
// compute the initial order quantity
var orderQuantity = targetOrderValue / unitPrice;
// rounding off Order Quantity to the nearest multiple of Lot Size
orderQuantity -= orderQuantity % security.SymbolProperties.LotSize;
do
{
// reduce order quantity by feeToPriceRatio, since it is faster than by lot size
// if it becomes nonpositive, return zero
orderQuantity -= feeToPriceRatio;
if (orderQuantity <= 0)
{
return(0);
}
// generate the order
var order = new MarketOrder(security.Symbol, orderQuantity, DateTime.UtcNow);
orderValue = order.GetValue(security);
orderFees = security.FeeModel.GetOrderFee(security, order);
// find an incremental delta value for the next iteration step
feeToPriceRatio = orderFees / unitPrice;
feeToPriceRatio -= feeToPriceRatio % security.SymbolProperties.LotSize;
if (feeToPriceRatio < security.SymbolProperties.LotSize)
{
feeToPriceRatio = security.SymbolProperties.LotSize;
}
// calculate the cash required for the order
cashRequired = orderValue;
} while (cashRequired > cashRemaining || orderValue + orderFees > targetOrderValue);
// add directionality back in
return((direction == OrderDirection.Sell ? -1 : 1) * orderQuantity);
}
/// <summary>
/// Get the maximum market order quantity to obtain a position with a given value in account currency. Will not take into account buying power.
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The security to be traded</param>
/// <param name="target">Target percentage holdings</param>
/// <returns>Returns the maximum allowed market order quantity and if zero, also the reason</returns>
public GetMaximumOrderQuantityForTargetValueResult GetMaximumOrderQuantityForTargetValue(SecurityPortfolioManager portfolio, Security security, decimal target)
{
var targetPortfolioValue = target * portfolio.TotalPortfolioValue;
// if targeting zero, simply return the negative of the quantity
if (targetPortfolioValue == 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(-security.Holdings.Quantity, string.Empty, false));
}
var currentHoldingsValue = security.Holdings.HoldingsValue;
// remove directionality, we'll work in the land of absolutes
var targetOrderValue = Math.Abs(targetPortfolioValue - currentHoldingsValue);
var direction = targetPortfolioValue > currentHoldingsValue ? OrderDirection.Buy : OrderDirection.Sell;
// determine the unit price in terms of the account currency
var unitPrice = new MarketOrder(security.Symbol, 1, DateTime.UtcNow).GetValue(security);
if (unitPrice == 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The price of the {security.Symbol.Value} security is zero because it does not have any market data yet. When the security price is set this security will be ready for trading."));
}
// calculate the total margin available
var marginRemaining = GetMarginRemaining(portfolio, security, direction);
if (marginRemaining <= 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The portfolio does not have enough margin available."));
}
// continue iterating while we do not have enough margin for the order
decimal orderValue = 0;
decimal orderFees = 0;
// compute the initial order quantity
var orderQuantity = targetOrderValue / unitPrice;
// rounding off Order Quantity to the nearest multiple of Lot Size
orderQuantity -= orderQuantity % security.SymbolProperties.LotSize;
if (orderQuantity == 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The order quantity is less than the lot size of {security.SymbolProperties.LotSize} and has been rounded to zero.", false));
}
var loopCount = 0;
// Just in case...
var lastOrderQuantity = 0m;
do
{
// Each loop will reduce the order quantity based on the difference between orderValue and targetOrderValue
if (orderValue > targetOrderValue)
{
var currentOrderValuePerUnit = orderValue / orderQuantity;
var amountOfOrdersToRemove = (orderValue - targetOrderValue) / currentOrderValuePerUnit;
if (amountOfOrdersToRemove < security.SymbolProperties.LotSize)
{
// we will always substract at leat 1 LotSize
amountOfOrdersToRemove = security.SymbolProperties.LotSize;
}
orderQuantity -= amountOfOrdersToRemove;
orderQuantity -= orderQuantity % security.SymbolProperties.LotSize;
}
if (orderQuantity <= 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The order quantity is less than the lot size of {security.SymbolProperties.LotSize} and has been rounded to zero." +
$"Target order value {targetOrderValue}. Order fees {orderFees}. Order quantity {orderQuantity}."));
}
// generate the order
var order = new MarketOrder(security.Symbol, orderQuantity, DateTime.UtcNow);
orderFees = security.FeeModel.GetOrderFee(security, order);
// The TPV, take out the fees(unscaled) => yields available value for trading(less fees) -- then scale that by the target
// finally remove currentHoldingsValue to get targetOrderValue
targetOrderValue = Math.Abs(target * (portfolio.TotalPortfolioValue - orderFees) - currentHoldingsValue);
// After the first loop we need to recalculate order quantity since now we have fees included
if (loopCount == 0)
{
// re compute the initial order quantity
orderQuantity = targetOrderValue / unitPrice;
orderQuantity -= orderQuantity % security.SymbolProperties.LotSize;
}
else
{
// Start safe check after first loop
if (lastOrderQuantity == orderQuantity)
{
throw new Exception($"GetMaximumOrderQuantityForTargetValue failed to converge to target order value {targetOrderValue}. " +
$"Current order value is {orderValue}. Order quantity {orderQuantity}. Lot size is " +
$"{security.SymbolProperties.LotSize}. Order fees {orderFees}. Security symbol {security.Symbol}");
}
lastOrderQuantity = orderQuantity;
}
orderValue = orderQuantity * unitPrice;
loopCount++;
// we always have to loop at least twice
} while (loopCount < 2 || orderValue > targetOrderValue);
// add directionality back in
return(new GetMaximumOrderQuantityForTargetValueResult((direction == OrderDirection.Sell ? -1 : 1) * orderQuantity));
}
/// <summary>
/// Gets the buying power available for a trade
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The security to be traded</param>
/// <param name="direction">The direction of the trade</param>
/// <returns>The buying power available for the trade</returns>
public decimal GetBuyingPower(SecurityPortfolioManager portfolio, Security security, OrderDirection direction)
{
return(GetMarginRemaining(portfolio, security, direction));
}
/// <summary>
/// Performs application of an OrderEvent to the portfolio
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The fill's security</param>
/// <param name="fill">The order event fill object to be applied</param>
public virtual void ProcessFill(SecurityPortfolioManager portfolio, Security security, OrderEvent fill)
{
var quoteCash = security.QuoteCurrency;
//Get the required information from the vehicle this order will affect
var isLong = security.Holdings.IsLong;
var isShort = security.Holdings.IsShort;
var closedPosition = false;
//Make local decimals to avoid any rounding errors from int multiplication
var quantityHoldings = (decimal)security.Holdings.Quantity;
var absoluteHoldingsQuantity = security.Holdings.AbsoluteQuantity;
var averageHoldingsPrice = security.Holdings.AveragePrice;
try
{
// apply sales value to holdings in the account currency
var saleValueInQuoteCurrency = fill.FillPrice * Convert.ToDecimal(fill.AbsoluteFillQuantity) * security.SymbolProperties.ContractMultiplier;
var saleValue = saleValueInQuoteCurrency * quoteCash.ConversionRate;
security.Holdings.AddNewSale(saleValue);
// subtract transaction fees from the portfolio
var feeInAccountCurrency = 0m;
if (fill.OrderFee != OrderFee.Zero
// this is for user friendliness because some
// Security types default to use 0 USD ConstantFeeModel
&& fill.OrderFee.Value.Amount != 0)
{
var feeThisOrder = fill.OrderFee.Value;
feeInAccountCurrency = portfolio.CashBook.ConvertToAccountCurrency(feeThisOrder).Amount;
security.Holdings.AddNewFee(feeInAccountCurrency);
fill.OrderFee.ApplyToPortfolio(portfolio, fill);
}
// apply the funds using the current settlement model
// we dont adjust funds for futures and CFDs: it is zero upfront payment derivative (margin applies though)
// We do however apply funds for futures options, since they affect our cash balance the moment they are purchased/sold.
if (security.Type != SecurityType.Future && security.Type != SecurityType.Cfd)
{
security.SettlementModel.ApplyFunds(portfolio, security, fill.UtcTime, quoteCash.Symbol, -fill.FillQuantity * fill.FillPrice * security.SymbolProperties.ContractMultiplier);
}
if (security.Type == SecurityType.Forex || security.Type == SecurityType.Crypto)
{
// model forex fills as currency swaps
var forex = (IBaseCurrencySymbol)security;
security.SettlementModel.ApplyFunds(portfolio, security, fill.UtcTime, forex.BaseCurrencySymbol, fill.FillQuantity);
}
// did we close or open a position further?
closedPosition = isLong && fill.Direction == OrderDirection.Sell ||
isShort && fill.Direction == OrderDirection.Buy;
// calculate the last trade profit
if (closedPosition)
{
// profit = (closed sale value - cost)*conversion to account currency
// closed sale value = quantity closed * fill price BUYs are deemed negative cash flow
// cost = quantity closed * average holdings price SELLS are deemed positive cash flow
var absoluteQuantityClosed = Math.Min(fill.AbsoluteFillQuantity, absoluteHoldingsQuantity);
var closedSaleValueInQuoteCurrency = Math.Sign(-fill.FillQuantity) * fill.FillPrice * absoluteQuantityClosed;
var closedCost = Math.Sign(-fill.FillQuantity) * absoluteQuantityClosed * averageHoldingsPrice;
var lastTradeProfit = (closedSaleValueInQuoteCurrency - closedCost)
* security.SymbolProperties.ContractMultiplier;
var lastTradeProfitInAccountCurrency = lastTradeProfit * security.QuoteCurrency.ConversionRate;
// Reflect account cash adjustment for futures/CFD position
if (security.Type == SecurityType.Future || security.Type == SecurityType.Cfd)
{
security.SettlementModel.ApplyFunds(portfolio, security, fill.UtcTime, quoteCash.Symbol, lastTradeProfit);
}
//Update Vehicle Profit Tracking:
security.Holdings.AddNewProfit(lastTradeProfitInAccountCurrency);
security.Holdings.SetLastTradeProfit(lastTradeProfitInAccountCurrency);
portfolio.AddTransactionRecord(security.LocalTime.ConvertToUtc(
security.Exchange.TimeZone),
lastTradeProfitInAccountCurrency - 2 * feeInAccountCurrency);
}
//UPDATE HOLDINGS QUANTITY, AVG PRICE:
//Currently NO holdings. The order is ALL our holdings.
if (quantityHoldings == 0)
{
//First transaction just subtract order from cash and set our holdings:
averageHoldingsPrice = fill.FillPrice;
quantityHoldings = fill.FillQuantity;
}
else if (isLong)
{
//If we're currently LONG on the stock.
switch (fill.Direction)
{
case OrderDirection.Buy:
//Update the Holding Average Price: Total Value / Total Quantity:
averageHoldingsPrice = ((averageHoldingsPrice * quantityHoldings) + (fill.FillQuantity * fill.FillPrice)) / (quantityHoldings + fill.FillQuantity);
//Add the new quantity:
quantityHoldings += fill.FillQuantity;
break;
case OrderDirection.Sell:
quantityHoldings += fill.FillQuantity; //+ a short = a subtraction
if (quantityHoldings < 0)
{
//If we've now passed through zero from selling stock: new avg price:
averageHoldingsPrice = fill.FillPrice;
}
else if (quantityHoldings == 0)
{
averageHoldingsPrice = 0;
}
break;
}
}
else if (isShort)
{
//We're currently SHORTING the stock: What is the new position now?
switch (fill.Direction)
{
case OrderDirection.Buy:
//Buying when we're shorting moves to close position:
quantityHoldings += fill.FillQuantity;
if (quantityHoldings > 0)
{
//If we were short but passed through zero, new average price is what we paid. The short position was closed.
averageHoldingsPrice = fill.FillPrice;
}
else if (quantityHoldings == 0)
{
averageHoldingsPrice = 0;
}
break;
case OrderDirection.Sell:
//We are increasing a Short position:
//E.g. -100 @ $5, adding -100 @ $10: Avg: $7.5
// dAvg = (-500 + -1000) / -200 = 7.5
averageHoldingsPrice = ((averageHoldingsPrice * quantityHoldings) + (fill.FillQuantity * fill.FillPrice)) / (quantityHoldings + fill.FillQuantity);
quantityHoldings += fill.FillQuantity;
break;
}
}
}
catch (Exception err)
{
Log.Error(err);
}
//Set the results back to the vehicle.
security.Holdings.SetHoldings(averageHoldingsPrice, quantityHoldings);
}
/// <summary>
/// Check if there is sufficient buying power to execute this order.
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The security to be traded</param>
/// <param name="order">The order to be checked</param>
/// <returns>Returns buying power information for an order</returns>
public HasSufficientBuyingPowerForOrderResult HasSufficientBuyingPowerForOrder(SecurityPortfolioManager portfolio, Security security, Order order)
{
// short circuit the div 0 case
if (order.Quantity == 0)
{
return(new HasSufficientBuyingPowerForOrderResult(true));
}
var ticket = portfolio.Transactions.GetOrderTicket(order.Id);
if (ticket == null)
{
var reason = $"Null order ticket for id: {order.Id}";
Log.Error($"SecurityMarginModel.HasSufficientBuyingPowerForOrder(): {reason}");
return(new HasSufficientBuyingPowerForOrderResult(false, reason));
}
if (order.Type == OrderType.OptionExercise)
{
// for option assignment and exercise orders we look into the requirements to process the underlying security transaction
var option = (Option.Option)security;
var underlying = option.Underlying;
if (option.IsAutoExercised(underlying.Close))
{
var quantity = option.GetExerciseQuantity(order.Quantity);
var newOrder = new LimitOrder
{
Id = order.Id,
Time = order.Time,
LimitPrice = option.StrikePrice,
Symbol = underlying.Symbol,
Quantity = option.Symbol.ID.OptionRight == OptionRight.Call ? quantity : -quantity
};
// we continue with this call for underlying
return(underlying.BuyingPowerModel.HasSufficientBuyingPowerForOrder(portfolio, underlying, newOrder));
}
return(new HasSufficientBuyingPowerForOrderResult(true));
}
// When order only reduces or closes a security position, capital is always sufficient
if (security.Holdings.Quantity * order.Quantity < 0 && Math.Abs(security.Holdings.Quantity) >= Math.Abs(order.Quantity))
{
return(new HasSufficientBuyingPowerForOrderResult(true));
}
var freeMargin = GetMarginRemaining(portfolio, security, order.Direction);
var initialMarginRequiredForOrder = GetInitialMarginRequiredForOrder(security, order);
// pro-rate the initial margin required for order based on how much has already been filled
var percentUnfilled = (Math.Abs(order.Quantity) - Math.Abs(ticket.QuantityFilled)) / Math.Abs(order.Quantity);
var initialMarginRequiredForRemainderOfOrder = percentUnfilled * initialMarginRequiredForOrder;
if (Math.Abs(initialMarginRequiredForRemainderOfOrder) > freeMargin)
{
var reason = $"Id: {order.Id}, Initial Margin: {initialMarginRequiredForRemainderOfOrder.Normalize()}, Free Margin: {freeMargin.Normalize()}";
Log.Error($"SecurityMarginModel.HasSufficientBuyingPowerForOrder(): {reason}");
return(new HasSufficientBuyingPowerForOrderResult(false, reason));
}
return(new HasSufficientBuyingPowerForOrderResult(true));
}
/// <summary>
/// Check if there is sufficient buying power to execute this order.
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The security to be traded</param>
/// <param name="order">The order to be checked</param>
/// <returns>Returns buying power information for an order</returns>
public HasSufficientBuyingPowerForOrderResult HasSufficientBuyingPowerForOrder(SecurityPortfolioManager portfolio, Security security, Order order)
{
var baseCurrency = security as IBaseCurrencySymbol;
if (baseCurrency == null)
{
return(new HasSufficientBuyingPowerForOrderResult(false, $"The '{security.Symbol.Value}' security is not supported by this cash model. Currently only SecurityType.Crypto and SecurityType.Forex are supported."));
}
decimal totalQuantity;
decimal orderQuantity;
if (order.Direction == OrderDirection.Buy)
{
// quantity available for buying in quote currency
totalQuantity = portfolio.CashBook[security.QuoteCurrency.Symbol].Amount;
orderQuantity = order.AbsoluteQuantity * GetOrderPrice(security, order);
}
else
{
// quantity available for selling in base currency
totalQuantity = portfolio.CashBook[baseCurrency.BaseCurrencySymbol].Amount;
orderQuantity = order.AbsoluteQuantity;
}
// calculate reserved quantity for open orders (in quote or base currency depending on direction)
var openOrdersReservedQuantity = GetOpenOrdersReservedQuantity(portfolio, security, order);
bool isSufficient;
var reason = string.Empty;
if (order.Direction == OrderDirection.Sell)
{
// can sell available and non-reserved quantities
isSufficient = orderQuantity <= totalQuantity - openOrdersReservedQuantity;
if (!isSufficient)
{
reason = $"Your portfolio holds {totalQuantity.Normalize()} {baseCurrency.BaseCurrencySymbol}, {openOrdersReservedQuantity.Normalize()} {baseCurrency.BaseCurrencySymbol} of which are reserved for open orders, but your Sell order is for {orderQuantity.Normalize()} {baseCurrency.BaseCurrencySymbol}. Cash Modeling trading does not permit short holdings so ensure you only sell what you have, including any additional open orders.";
}
return(new HasSufficientBuyingPowerForOrderResult(isSufficient, reason));
}
if (order.Type == OrderType.Market)
{
// include existing holdings (in quote currency)
var holdingsValue =
portfolio.CashBook.Convert(
portfolio.CashBook[baseCurrency.BaseCurrencySymbol].Amount, baseCurrency.BaseCurrencySymbol, security.QuoteCurrency.Symbol);
// find a target value in account currency for buy market orders
var targetValue =
portfolio.CashBook.ConvertToAccountCurrency(totalQuantity - openOrdersReservedQuantity + holdingsValue,
security.QuoteCurrency.Symbol);
// maximum quantity that can be bought (in quote currency)
var maximumQuantity =
GetMaximumOrderQuantityForTargetValue(portfolio, security, targetValue).Quantity *GetOrderPrice(security, order);
isSufficient = orderQuantity <= Math.Abs(maximumQuantity);
if (!isSufficient)
{
reason = $"Your portfolio holds {totalQuantity.Normalize()} {security.QuoteCurrency.Symbol}, {openOrdersReservedQuantity.Normalize()} {security.QuoteCurrency.Symbol} of which are reserved for open orders, but your Buy order is for {order.AbsoluteQuantity.Normalize()} {baseCurrency.BaseCurrencySymbol}. Your order requires a total value of {orderQuantity.Normalize()} {security.QuoteCurrency.Symbol}, but only a total value of {(Math.Abs(maximumQuantity) + holdingsValue).Normalize()} {security.QuoteCurrency.Symbol} is available.";
}
return(new HasSufficientBuyingPowerForOrderResult(isSufficient, reason));
}
// for limit orders, add fees to the order cost
var orderFee = 0m;
if (order.Type == OrderType.Limit)
{
orderFee = security.FeeModel.GetOrderFee(security, order);
orderFee = portfolio.CashBook.Convert(orderFee, CashBook.AccountCurrency, security.QuoteCurrency.Symbol);
}
isSufficient = orderQuantity <= totalQuantity - openOrdersReservedQuantity - orderFee;
if (!isSufficient)
{
reason = $"Your portfolio holds {totalQuantity.Normalize()} {security.QuoteCurrency.Symbol}, {openOrdersReservedQuantity.Normalize()} {security.QuoteCurrency.Symbol} of which are reserved for open orders, but your Buy order is for {order.AbsoluteQuantity.Normalize()} {baseCurrency.BaseCurrencySymbol}. Your order requires a total value of {orderQuantity.Normalize()} {security.QuoteCurrency.Symbol}, but only a total value of {(totalQuantity - openOrdersReservedQuantity - orderFee).Normalize()} {security.QuoteCurrency.Symbol} is available.";
}
return(new HasSufficientBuyingPowerForOrderResult(isSufficient, reason));
}
private static decimal GetOpenOrdersReservedQuantity(SecurityPortfolioManager portfolio, Security security, Order order)
{
var baseCurrency = security as IBaseCurrencySymbol;
if (baseCurrency == null)
{
return(0);
}
// find the target currency for the requested direction and the securities potentially involved
var targetCurrency = order.Direction == OrderDirection.Buy
? security.QuoteCurrency.Symbol
: baseCurrency.BaseCurrencySymbol;
var symbolDirectionPairs = new Dictionary <Symbol, OrderDirection>();
foreach (var portfolioSecurity in portfolio.Securities.Values)
{
var basePortfolioSecurity = portfolioSecurity as IBaseCurrencySymbol;
if (basePortfolioSecurity == null)
{
continue;
}
if (basePortfolioSecurity.BaseCurrencySymbol == targetCurrency)
{
symbolDirectionPairs.Add(portfolioSecurity.Symbol, OrderDirection.Sell);
}
else if (portfolioSecurity.QuoteCurrency.Symbol == targetCurrency)
{
symbolDirectionPairs.Add(portfolioSecurity.Symbol, OrderDirection.Buy);
}
}
// fetch open orders with matching symbol/side
var openOrders = portfolio.Transactions.GetOpenOrders(x =>
{
OrderDirection dir;
return(symbolDirectionPairs.TryGetValue(x.Symbol, out dir) &&
// same direction of our order
dir == x.Direction &&
// don't count our current order
x.Id != order.Id &&
// only count working orders
(x.Type == OrderType.Limit || x.Type == OrderType.StopMarket));
}
);
// calculate reserved quantity for selected orders
var openOrdersReservedQuantity = 0m;
foreach (var openOrder in openOrders)
{
var orderSecurity = portfolio.Securities[openOrder.Symbol];
var orderBaseCurrency = orderSecurity as IBaseCurrencySymbol;
if (orderBaseCurrency != null)
{
// convert order value to target currency
var quantityInTargetCurrency = openOrder.AbsoluteQuantity;
if (orderSecurity.QuoteCurrency.Symbol == targetCurrency)
{
quantityInTargetCurrency *= GetOrderPrice(security, openOrder);
}
openOrdersReservedQuantity += quantityInTargetCurrency;
}
}
return(openOrdersReservedQuantity);
}
/// <summary>
/// Get the maximum market order quantity to obtain a position with a given value in account currency
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The security to be traded</param>
/// <param name="targetPortfolioValue">The value in account currency that we want our holding to have</param>
/// <returns>Returns the maximum allowed market order quantity and if zero, also the reason</returns>
public GetMaximumOrderQuantityForTargetValueResult GetMaximumOrderQuantityForTargetValue(SecurityPortfolioManager portfolio, Security security, decimal targetPortfolioValue)
{
// no shorting allowed
if (targetPortfolioValue < 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, "The cash model does not allow shorting."));
}
var baseCurrency = security as IBaseCurrencySymbol;
if (baseCurrency == null)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, "The security type must be SecurityType.Crypto or SecurityType.Forex."));
}
// if target value is zero, return amount of base currency available to sell
if (targetPortfolioValue == 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(-portfolio.CashBook[baseCurrency.BaseCurrencySymbol].Amount));
}
// convert base currency cash to account currency
var baseCurrencyPosition = portfolio.CashBook.ConvertToAccountCurrency(
portfolio.CashBook[baseCurrency.BaseCurrencySymbol].Amount,
baseCurrency.BaseCurrencySymbol);
// convert quote currency cash to account currency
var quoteCurrencyPosition = portfolio.CashBook.ConvertToAccountCurrency(
portfolio.CashBook[security.QuoteCurrency.Symbol].Amount,
security.QuoteCurrency.Symbol);
// determine the unit price in terms of the account currency
var unitPrice = new MarketOrder(security.Symbol, 1, DateTime.UtcNow).GetValue(security);
if (unitPrice == 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The price of the {security.Symbol.Value} security is zero because it does not have any market data yet. When the security price is set this security will be ready for trading."));
}
// remove directionality, we'll work in the land of absolutes
var targetOrderValue = Math.Abs(targetPortfolioValue - baseCurrencyPosition);
var direction = targetPortfolioValue > baseCurrencyPosition ? OrderDirection.Buy : OrderDirection.Sell;
// calculate the total cash available
var cashRemaining = direction == OrderDirection.Buy ? quoteCurrencyPosition : baseCurrencyPosition;
var currency = direction == OrderDirection.Buy ? security.QuoteCurrency.Symbol : baseCurrency.BaseCurrencySymbol;
if (cashRemaining <= 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The portfolio does not hold any {currency} for the order."));
}
// continue iterating while we do not have enough cash for the order
decimal cashRequired;
decimal orderValue;
decimal orderFees;
var feeToPriceRatio = 0m;
// compute the initial order quantity
var orderQuantity = targetOrderValue / unitPrice;
// rounding off Order Quantity to the nearest multiple of Lot Size
orderQuantity -= orderQuantity % security.SymbolProperties.LotSize;
if (orderQuantity == 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The order quantity is less than the lot size of {security.SymbolProperties.LotSize} and has been rounded to zero.", false));
}
do
{
// reduce order quantity by feeToPriceRatio, since it is faster than by lot size
// if it becomes nonpositive, return zero
orderQuantity -= feeToPriceRatio;
if (orderQuantity <= 0)
{
return(new GetMaximumOrderQuantityForTargetValueResult(0, $"The portfolio does not hold enough {currency} including the order fees."));
}
// generate the order
var order = new MarketOrder(security.Symbol, orderQuantity, DateTime.UtcNow);
orderValue = order.GetValue(security);
orderFees = security.FeeModel.GetOrderFee(security, order);
// find an incremental delta value for the next iteration step
feeToPriceRatio = orderFees / unitPrice;
feeToPriceRatio -= feeToPriceRatio % security.SymbolProperties.LotSize;
if (feeToPriceRatio < security.SymbolProperties.LotSize)
{
feeToPriceRatio = security.SymbolProperties.LotSize;
}
// calculate the cash required for the order
cashRequired = orderValue;
} while (cashRequired > cashRemaining || orderValue + orderFees > targetOrderValue);
// add directionality back in
return(new GetMaximumOrderQuantityForTargetValueResult((direction == OrderDirection.Sell ? -1 : 1) * orderQuantity));
}
/// <summary>
/// Initializes a new instance of the <see cref="MarginCallModel"/> class
/// </summary>
/// <param name="portfolio">The portfolio object to receive margin calls</param>
public MarginCallModel(SecurityPortfolioManager portfolio)
{
Portfolio = portfolio;
}
/// <summary>
/// Initializes a new instance of the <see cref="HasSufficientBuyingPowerForOrderParameters"/> class
/// </summary>
/// <param name="portfolio">The algorithm's portfolio</param>
/// <param name="security">The security</param>
/// <param name="order">The order</param>
public HasSufficientBuyingPowerForOrderParameters(SecurityPortfolioManager portfolio, Security security, Order order)
{
Portfolio = portfolio;
Security = security;
Order = order;
}