C# SecurityPortfolioManager类代码示例

        /********************************************************
        * CLASS CONSTRUCTOR
        *********************************************************/
        /// <summary>
        /// Initialise the Algorithm
        /// </summary>
        public QCAlgorithm()
        {
            //Initialise the Algorithm Helper Classes:
            //- Note - ideally these wouldn't be here, but because of the DLL we need to make the classes shared across
            //  the Worker & Algorithm, limiting ability to do anything else.
            Securities = new SecurityManager();
            Transacions = new SecurityTransactionManager(Securities);
            Portfolio = new SecurityPortfolioManager(Securities, Transacions);

            //Initialise Data Manager
            DataManager = new DataManager();

            //Initialise Error and Order Holders:
            Errors = new List<string>();

            //Initialise Algorithm RunMode to Automatic:
            _runMode = RunMode.Automatic;

            //Initialise to unlocked:
            _locked = false;

            //Initialise Start and End Dates:
            _startDate = new DateTime();
            _endDate = new DateTime();
        }

        public void FundsAreSettledImmediately()
        {
            var securities = new SecurityManager(TimeKeeper);
            var transactions = new SecurityTransactionManager(securities);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            var model = new ImmediateSettlementModel();
            var config = CreateTradeBarConfig();
            var security = new Security(SecurityExchangeHoursTests.CreateUsEquitySecurityExchangeHours(), config);

            portfolio.SetCash(1000);
            Assert.AreEqual(1000, portfolio.Cash);
            Assert.AreEqual(0, portfolio.UnsettledCash);

            var timeUtc = Noon.ConvertToUtc(TimeZones.NewYork);
            model.ApplyFunds(portfolio, security, timeUtc, "USD", 1000);

            Assert.AreEqual(2000, portfolio.Cash);
            Assert.AreEqual(0, portfolio.UnsettledCash);

            model.ApplyFunds(portfolio, security, timeUtc, "USD", -500);

            Assert.AreEqual(1500, portfolio.Cash);
            Assert.AreEqual(0, portfolio.UnsettledCash);

            model.ApplyFunds(portfolio, security, timeUtc, "USD", 1000);

            Assert.AreEqual(2500, portfolio.Cash);
            Assert.AreEqual(0, portfolio.UnsettledCash);
        }

        /// <summary>
        /// Applies cash settlement rules
        /// </summary>
        /// <param name="portfolio">The algorithm's portfolio</param>
        /// <param name="security">The fill's security</param>
        /// <param name="applicationTimeUtc">The fill time (in UTC)</param>
        /// <param name="currency">The currency symbol</param>
        /// <param name="amount">The amount of cash to apply</param>
        public void ApplyFunds(SecurityPortfolioManager portfolio, Security security, DateTime applicationTimeUtc, string currency, decimal amount)
        {
            if (amount > 0)
            {
                // positive amount: sell order filled

                portfolio.UnsettledCashBook[currency].AddAmount(amount);

                // find the correct settlement date (usually T+3 or T+1)
                var settlementDate = applicationTimeUtc.ConvertFromUtc(security.Exchange.TimeZone).Date;
                for (var i = 0; i < _numberOfDays; i++)
                {
                    settlementDate = settlementDate.AddDays(1);

                    // only count days when market is open
                    if (!security.Exchange.Hours.IsDateOpen(settlementDate))
                        i--;
                }

                // use correct settlement time
                var settlementTimeUtc = settlementDate.Add(_timeOfDay).ConvertToUtc(security.Exchange.Hours.TimeZone);

                portfolio.AddUnsettledCashAmount(new UnsettledCashAmount(settlementTimeUtc, currency, amount));
            }
            else
            {
                // negative amount: buy order filled

                portfolio.CashBook[currency].AddAmount(amount);
            }
        }

        public void SellOnThursdaySettleOnTuesday()
        {
            var securities = new SecurityManager(TimeKeeper);
            var transactions = new SecurityTransactionManager(securities);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            // settlement at T+3, 8:00 AM
            var model = new DelayedSettlementModel(3, TimeSpan.FromHours(8));
            var config = CreateTradeBarConfig(Symbols.SPY);
            var security = new Security(SecurityExchangeHoursTests.CreateUsEquitySecurityExchangeHours(), config, new Cash(CashBook.AccountCurrency, 0, 1m), SymbolProperties.GetDefault(CashBook.AccountCurrency));

            portfolio.SetCash(3000);
            Assert.AreEqual(3000, portfolio.Cash);
            Assert.AreEqual(0, portfolio.UnsettledCash);

            // Sell on Thursday
            var timeUtc = Noon.AddDays(3).ConvertToUtc(TimeZones.NewYork);
            model.ApplyFunds(portfolio, security, timeUtc, "USD", 1000);
            portfolio.ScanForCashSettlement(timeUtc);
            Assert.AreEqual(3000, portfolio.Cash);
            Assert.AreEqual(1000, portfolio.UnsettledCash);

            // Friday, still unsettled
            timeUtc = timeUtc.AddDays(1);
            portfolio.ScanForCashSettlement(timeUtc);
            Assert.AreEqual(3000, portfolio.Cash);
            Assert.AreEqual(1000, portfolio.UnsettledCash);

            // Saturday, still unsettled
            timeUtc = timeUtc.AddDays(1);
            portfolio.ScanForCashSettlement(timeUtc);
            Assert.AreEqual(3000, portfolio.Cash);
            Assert.AreEqual(1000, portfolio.UnsettledCash);

            // Sunday, still unsettled
            timeUtc = timeUtc.AddDays(1);
            portfolio.ScanForCashSettlement(timeUtc);
            Assert.AreEqual(3000, portfolio.Cash);
            Assert.AreEqual(1000, portfolio.UnsettledCash);

            // Monday, still unsettled
            timeUtc = timeUtc.AddDays(1);
            portfolio.ScanForCashSettlement(timeUtc);
            Assert.AreEqual(3000, portfolio.Cash);
            Assert.AreEqual(1000, portfolio.UnsettledCash);

            // Tuesday at 7:55 AM, still unsettled
            timeUtc = timeUtc.AddDays(1).AddHours(-4).AddMinutes(-5);
            portfolio.ScanForCashSettlement(timeUtc);
            Assert.AreEqual(3000, portfolio.Cash);
            Assert.AreEqual(1000, portfolio.UnsettledCash);

            // Tuesday at 8 AM, now settled
            timeUtc = timeUtc.AddMinutes(5);
            portfolio.ScanForCashSettlement(timeUtc);
            Assert.AreEqual(4000, portfolio.Cash);
            Assert.AreEqual(0, portfolio.UnsettledCash);
        }

        public void TestCashFills()
        {
            // this test asserts the portfolio behaves according to the Test_Cash algo, see TestData\CashTestingStrategy.csv
            // also "https://www.dropbox.com/s/oiliumoyqqj1ovl/2013-cash.csv?dl=1"

            const string fillsFile = "TestData\\test_cash_fills.xml";
            const string equityFile = "TestData\\test_cash_equity.xml";

            var fills = XDocument.Load(fillsFile).Descendants("OrderEvent").Select(x => new OrderEvent(
                x.Get<int>("OrderId"),
                SymbolMap[x.Get<string>("Symbol")],
                DateTime.MinValue, 
                x.Get<OrderStatus>("Status"),
                x.Get<int>("FillQuantity") < 0 ? OrderDirection.Sell 
              : x.Get<int>("FillQuantity") > 0 ? OrderDirection.Buy 
                                               : OrderDirection.Hold,
                x.Get<decimal>("FillPrice"),
                x.Get<int>("FillQuantity"),
                0m)
                ).ToList();

            var equity = XDocument.Load(equityFile).Descendants("decimal")
                .Select(x => decimal.Parse(x.Value, CultureInfo.InvariantCulture))
                .ToList();

            Assert.AreEqual(fills.Count + 1, equity.Count);

            // we're going to process fills and very our equity after each fill
            var subscriptions = new SubscriptionManager(TimeKeeper);
            var securities = new SecurityManager(TimeKeeper);
            var security = new Security(SecurityExchangeHours, subscriptions.Add(CASH, Resolution.Daily, TimeZones.NewYork, TimeZones.NewYork));
            security.SetLeverage(10m);
            securities.Add(CASH, security);
            var transactions = new SecurityTransactionManager(securities);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            portfolio.SetCash(equity[0]);

            for (int i = 0; i < fills.Count; i++)
            {
                // before processing the fill we must deduct the cost
                var fill = fills[i];
                var time = DateTime.Today.AddDays(i);
                TimeKeeper.SetUtcDateTime(time.ConvertToUtc(TimeZones.NewYork));
                // the value of 'CASH' increments for each fill, the original test algo did this monthly
                // the time doesn't really matter though
                security.SetMarketPrice(new IndicatorDataPoint(CASH, time, i + 1));

                portfolio.ProcessFill(fill);
                Assert.AreEqual(equity[i + 1], portfolio.TotalPortfolioValue, "Failed on " + i);
            }
        }

        /// <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 (assumes in account currency)
                var feeThisOrder = Math.Abs(fill.OrderFee);
                security.Holdings.AddNewFee(feeThisOrder);
                portfolio.CashBook[CashBook.AccountCurrency].AddAmount(-feeThisOrder);

                // apply the funds using the current settlement model
                security.SettlementModel.ApplyFunds(portfolio, security, fill.UtcTime, quoteCash.Symbol, -fill.FillQuantity * fill.FillPrice * security.SymbolProperties.ContractMultiplier);
                if (security.Type == SecurityType.Forex)
                {
                    // model forex fills as currency swaps
                    var forex = (Forex.Forex) 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 conversionFactor = security.QuoteCurrency.ConversionRate*security.SymbolProperties.ContractMultiplier;
                    var lastTradeProfit = (closedSaleValueInQuoteCurrency - closedCost)*conversionFactor;

                    //Update Vehicle Profit Tracking:
                    security.Holdings.AddNewProfit(lastTradeProfit);
                    security.Holdings.SetLastTradeProfit(lastTradeProfit);
                    portfolio.AddTransactionRecord(security.LocalTime.ConvertToUtc(security.Exchange.TimeZone), lastTradeProfit - 2*feeThisOrder);
                }

                //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)
//.........这里部分代码省略.........

        /// <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 override void ProcessFill(SecurityPortfolioManager portfolio, Security security, OrderEvent fill)
        {
            var cfd = (Cfd) security;

            var quoteCurrency = cfd.QuoteCurrencySymbol;

            var quoteCash = portfolio.CashBook[quoteCurrency];

            //Get the required information from the vehicle this order will affect
            var closedPosition = false;
            var isLong = security.Holdings.IsLong;
            var isShort = security.Holdings.IsShort;

            //Make local decimals to avoid any rounding errors from int multiplication
            var averageHoldingsPrice = security.Holdings.AveragePrice;
            var quantityHoldings = (decimal)security.Holdings.Quantity;
            var absoluteHoldingsQuantity = security.Holdings.AbsoluteQuantity;

            var lastTradeProfit = 0m;

            try
            {
                //Update the Vehicle approximate total sales volume.
                var saleValueInQuoteCurrency = fill.FillPrice * Convert.ToDecimal(fill.AbsoluteFillQuantity) * cfd.ContractMultiplier;
                var saleValue = saleValueInQuoteCurrency * quoteCash.ConversionRate;
                security.Holdings.AddNewSale(saleValue);

                //Get the Fee for this Order - Update the Portfolio Cash Balance: Remove Transaction Fees.
                var feeThisOrder = Math.Abs(fill.OrderFee);
                security.Holdings.AddNewFee(feeThisOrder);
                portfolio.CashBook[CashBook.AccountCurrency].AddAmount(-feeThisOrder);

                // Apply the funds using the current settlement model
                security.SettlementModel.ApplyFunds(portfolio, security, fill.UtcTime, quoteCurrency, -fill.FillQuantity * fill.FillPrice * cfd.ContractMultiplier);

                //Calculate & Update the Last Trade Profit;
                if (isLong && fill.Direction == OrderDirection.Sell)
                {
                    //Closing up a long position
                    if (quantityHoldings >= fill.AbsoluteFillQuantity)
                    {
                        //Closing up towards Zero -- this is in the quote currency
                        lastTradeProfit = (fill.FillPrice - averageHoldingsPrice) * fill.AbsoluteFillQuantity * cfd.ContractMultiplier;
                    }
                    else
                    {
                        //Closing up to Neg/Short Position (selling more than we have) - Only calc profit on the stock we have to sell.
                        lastTradeProfit = (fill.FillPrice - averageHoldingsPrice) * quantityHoldings * cfd.ContractMultiplier;
                    }
                    closedPosition = true;
                }
                else if (isShort && fill.Direction == OrderDirection.Buy)
                {
                    //Closing up a short position.
                    if (absoluteHoldingsQuantity >= fill.FillQuantity)
                    {
                        //Reducing the stock we have, and enough stock on hand to process order.
                        lastTradeProfit = (averageHoldingsPrice - fill.FillPrice) * fill.AbsoluteFillQuantity * cfd.ContractMultiplier;
                    }
                    else
                    {
                        //Increasing stock holdings, short to positive through zero, but only calc profit on stock we Buy.
                        lastTradeProfit = (averageHoldingsPrice - fill.FillPrice) * absoluteHoldingsQuantity * cfd.ContractMultiplier;
                    }
                    closedPosition = true;
                }


                if (closedPosition)
                {
                    // convert the compute profit into the account currency
                    lastTradeProfit *= quoteCash.ConversionRate;

                    //Update Vehicle Profit Tracking:
                    security.Holdings.AddNewProfit(lastTradeProfit);
                    security.Holdings.SetLastTradeProfit(lastTradeProfit);
                    portfolio.AddTransactionRecord(security.LocalTime.ConvertToUtc(security.Exchange.TimeZone), lastTradeProfit - 2 * feeThisOrder);
                }


                //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:
//.........这里部分代码省略.........

        public void MarginComputesProperlyWithMultipleSecurities()
        {
            var securities = new SecurityManager(TimeKeeper);
            var transactions = new SecurityTransactionManager(securities);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            portfolio.CashBook["USD"].Quantity = 1000;
            portfolio.CashBook.Add("EUR",  1000, 1.1m);
            portfolio.CashBook.Add("GBP", -1000, 2.0m);

            var eurCash = portfolio.CashBook["EUR"];
            var gbpCash = portfolio.CashBook["GBP"];
            var usdCash = portfolio.CashBook["USD"];

            var time = DateTime.Now;
            var config1 = CreateTradeBarDataConfig(SecurityType.Equity, "AAPL");
            securities.Add(new Security(SecurityExchangeHours, config1, 2));
            securities["AAPL"].Holdings.SetHoldings(100, 100);
            securities["AAPL"].SetMarketPrice(new TradeBar{Time = time, Value = 100});
            //Console.WriteLine("AAPL TMU: " + securities["AAPL"].MarginModel.GetMaintenanceMargin(securities["AAPL"]));
            //Console.WriteLine("AAPL Value: " + securities["AAPL"].Holdings.HoldingsValue);

            //Console.WriteLine();

            var config2 = CreateTradeBarDataConfig(SecurityType.Forex, "EURUSD");
            securities.Add(new QuantConnect.Securities.Forex.Forex(SecurityExchangeHours, usdCash, config2, 100));
            securities["EURUSD"].Holdings.SetHoldings(1.1m, 1000);
            securities["EURUSD"].SetMarketPrice(new TradeBar { Time = time, Value = 1.1m });
            //Console.WriteLine("EURUSD TMU: " + securities["EURUSD"].MarginModel.GetMaintenanceMargin(securities["EURUSD"]));
            //Console.WriteLine("EURUSD Value: " + securities["EURUSD"].Holdings.HoldingsValue);

            //Console.WriteLine();

            var config3 = CreateTradeBarDataConfig(SecurityType.Forex, "EURGBP");
            securities.Add(new QuantConnect.Securities.Forex.Forex(SecurityExchangeHours, gbpCash, config3, 100));
            securities["EURGBP"].Holdings.SetHoldings(1m, 1000);
            securities["EURGBP"].SetMarketPrice(new TradeBar { Time = time, Value = 1m });
            //Console.WriteLine("EURGBP TMU: " + securities["EURGBP"].MarginModel.GetMaintenanceMargin(securities["EURGBP"]));
            //Console.WriteLine("EURGBP Value: " + securities["EURGBP"].Holdings.HoldingsValue);

            //Console.WriteLine();

            //Console.WriteLine(portfolio.CashBook["USD"]);
            //Console.WriteLine(portfolio.CashBook["EUR"]);
            //Console.WriteLine(portfolio.CashBook["GBP"]);
            //Console.WriteLine("CashBook: " + portfolio.CashBook.TotalValueInAccountCurrency);

            //Console.WriteLine();

            //Console.WriteLine("Total Margin Used: " + portfolio.TotalMarginUsed);
            //Console.WriteLine("Total Free Margin: " + portfolio.MarginRemaining);
            //Console.WriteLine("Total Portfolio Value: " + portfolio.TotalPortfolioValue);

            var acceptedOrder = new MarketOrder("AAPL", 101, DateTime.Now) {Price = 100};
            var sufficientCapital = transactions.GetSufficientCapitalForOrder(portfolio, acceptedOrder);
            Assert.IsTrue(sufficientCapital);

            var rejectedOrder = new MarketOrder("AAPL", 102, DateTime.Now) { Price = 100 };
            sufficientCapital = transactions.GetSufficientCapitalForOrder(portfolio, rejectedOrder);
            Assert.IsFalse(sufficientCapital);
        }

        public void SellingShortFromZeroAddsToCash()
        {
            var securities = new SecurityManager(TimeKeeper);
            var transactions = new SecurityTransactionManager(securities);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            portfolio.SetCash(0);

            securities.Add("AAPL", new Security(SecurityExchangeHours, CreateTradeBarDataConfig(SecurityType.Equity, "AAPL"), 1));

            var fill = new OrderEvent(1, "AAPL", DateTime.MinValue, OrderStatus.Filled, OrderDirection.Sell,  100, -100, 0);
            portfolio.ProcessFill(fill);

            Assert.AreEqual(100 * 100, portfolio.Cash);
            Assert.AreEqual(-100, securities["AAPL"].Holdings.Quantity);
        }

        public void ForexFillUpdatesCashCorrectly()
        {
            var securities = new SecurityManager(TimeKeeper);
            var transactions = new SecurityTransactionManager(securities);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            portfolio.SetCash(1000);
            portfolio.CashBook.Add("EUR", 0, 1.1000m);

            securities.Add(Symbols.EURUSD, new QuantConnect.Securities.Forex.Forex(SecurityExchangeHours, portfolio.CashBook["USD"], CreateTradeBarDataConfig(SecurityType.Forex, Symbols.EURUSD), SymbolProperties.GetDefault(CashBook.AccountCurrency)));
            var security = securities[Symbols.EURUSD];
            Assert.AreEqual(0, security.Holdings.Quantity);
            Assert.AreEqual(1000, portfolio.Cash);

            var orderFee = security.FeeModel.GetOrderFee(security, new MarketOrder(Symbols.EURUSD, 100, DateTime.MinValue));
            var fill = new OrderEvent(1, Symbols.EURUSD, DateTime.MinValue, OrderStatus.Filled, OrderDirection.Buy, 1.1000m, 100, orderFee);
            portfolio.ProcessFill(fill);
            Assert.AreEqual(100, security.Holdings.Quantity);
            Assert.AreEqual(998, portfolio.Cash);
            Assert.AreEqual(100, portfolio.CashBook["EUR"].Amount);
            Assert.AreEqual(888, portfolio.CashBook["USD"].Amount);
        }

 private Security InitializeTest(DateTime reference, out SecurityPortfolioManager portfolio)
 {
     var security = new Security(SecurityExchangeHours.AlwaysOpen(TimeZones.NewYork), CreateTradeBarConfig(), new Cash(CashBook.AccountCurrency, 0, 1m), SymbolProperties.GetDefault(CashBook.AccountCurrency));
     security.SetMarketPrice(new Tick { Value = 100 });
     var timeKeeper = new TimeKeeper(reference);
     var securityManager = new SecurityManager(timeKeeper);
     securityManager.Add(security);
     var transactionManager = new SecurityTransactionManager(securityManager);
     portfolio = new SecurityPortfolioManager(securityManager, transactionManager);
     portfolio.SetCash("USD", 100 * 1000m, 1m);
     Assert.AreEqual(0, security.Holdings.Quantity);
     Assert.AreEqual(100*1000m, portfolio.CashBook[CashBook.AccountCurrency].Amount);
     return security;
 }

        public void ComputeMarginProperlyAsSecurityPriceFluctuates()
        {
            const decimal leverage = 1m;
            const int quantity = (int) (1000*leverage);
            var securities = new SecurityManager(TimeKeeper);
            var transactions = new SecurityTransactionManager(securities);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            portfolio.CashBook["USD"].Quantity = quantity;

            var config = CreateTradeBarDataConfig(SecurityType.Equity, "AAPL");
            securities.Add(new Security(SecurityExchangeHours, config, leverage, false));

            var time = DateTime.Now;
            const decimal buyPrice = 1m;
            var security = securities["AAPL"];
            security.SetMarketPrice(new TradeBar(time, "AAPL", buyPrice, buyPrice, buyPrice, buyPrice, 1));

            var order = new MarketOrder("AAPL", quantity, time) {Price = buyPrice};
            var fill = new OrderEvent(order){FillPrice = buyPrice, FillQuantity = quantity};

            Assert.AreEqual(portfolio.CashBook["USD"].Quantity, fill.FillPrice*fill.FillQuantity);

            portfolio.ProcessFill(fill);

            Assert.AreEqual(0, portfolio.MarginRemaining);
            Assert.AreEqual(quantity, portfolio.TotalMarginUsed);
            Assert.AreEqual(quantity, portfolio.TotalPortfolioValue);

            // we shouldn't be able to place a trader
            var newOrder = new MarketOrder("AAPL", 1, time.AddSeconds(1)) {Price = buyPrice};
            bool sufficientCapital = transactions.GetSufficientCapitalForOrder(portfolio, newOrder);
            Assert.IsFalse(sufficientCapital);

            // now the stock doubles, so we should have margin remaining

            time = time.AddDays(1);
            const decimal highPrice = buyPrice * 2;
            security.SetMarketPrice(new TradeBar(time, "AAPL", highPrice, highPrice, highPrice, highPrice, 1));

            Assert.AreEqual(quantity, portfolio.MarginRemaining);
            Assert.AreEqual(quantity, portfolio.TotalMarginUsed);
            Assert.AreEqual(quantity * 2, portfolio.TotalPortfolioValue);

            // we shouldn't be able to place a trader
            var anotherOrder = new MarketOrder("AAPL", 1, time.AddSeconds(1)) { Price = highPrice };
            sufficientCapital = transactions.GetSufficientCapitalForOrder(portfolio, anotherOrder);
            Assert.IsTrue(sufficientCapital);

            // now the stock plummets, so we should have negative margin remaining

            time = time.AddDays(1);
            const decimal lowPrice = buyPrice/2;
            security.SetMarketPrice(new TradeBar(time, "AAPL", lowPrice, lowPrice, lowPrice, lowPrice, 1));

            Assert.AreEqual(-quantity/2m, portfolio.MarginRemaining);
            Assert.AreEqual(quantity, portfolio.TotalMarginUsed);
            Assert.AreEqual(quantity/2m, portfolio.TotalPortfolioValue);

            // this would not cause a margin call due to leverage = 1
            bool issueMarginCallWarning;
            var marginCallOrders = portfolio.ScanForMarginCall(out issueMarginCallWarning);
            Assert.AreEqual(0, marginCallOrders.Count);

            // now change the leverage and buy more and we'll get a margin call
            security.SetLeverage(leverage * 2);

            order = new MarketOrder("AAPL", quantity, time) { Price = buyPrice };
            fill = new OrderEvent(order) { FillPrice = buyPrice, FillQuantity = quantity };

            portfolio.ProcessFill(fill);

            Assert.AreEqual(0, portfolio.TotalPortfolioValue);

            marginCallOrders = portfolio.ScanForMarginCall(out issueMarginCallWarning);
            Assert.AreNotEqual(0, marginCallOrders.Count);
            Assert.AreEqual(-security.Holdings.Quantity, marginCallOrders[0].Quantity); // we bought twice
            Assert.GreaterOrEqual(-portfolio.MarginRemaining, security.Price * marginCallOrders[0].Quantity);
        }

        public void MarginComputesProperlyWithMultipleSecurities()
        {
            var securities = new SecurityManager(TimeKeeper);
            var transactions = new SecurityTransactionManager(securities);
            var orderProcessor = new OrderProcessor();
            transactions.SetOrderProcessor(orderProcessor);
            var portfolio = new SecurityPortfolioManager(securities, transactions);
            portfolio.CashBook["USD"].SetAmount(1000);
            portfolio.CashBook.Add("EUR",  1000, 1.1m);
            portfolio.CashBook.Add("GBP", -1000, 2.0m);

            var eurCash = portfolio.CashBook["EUR"];
            var gbpCash = portfolio.CashBook["GBP"];
            var usdCash = portfolio.CashBook["USD"];

            var time = DateTime.Now;
            var config1 = CreateTradeBarDataConfig(SecurityType.Equity, Symbols.AAPL);
            securities.Add(new Security(SecurityExchangeHours, config1, new Cash(CashBook.AccountCurrency, 0, 1m), SymbolProperties.GetDefault(CashBook.AccountCurrency)));
            securities[Symbols.AAPL].SetLeverage(2m);
            securities[Symbols.AAPL].Holdings.SetHoldings(100, 100);
            securities[Symbols.AAPL].SetMarketPrice(new TradeBar{Time = time, Value = 100});
            //Console.WriteLine("AAPL TMU: " + securities[Symbols.AAPL].MarginModel.GetMaintenanceMargin(securities[Symbols.AAPL]));
            //Console.WriteLine("AAPL Value: " + securities[Symbols.AAPL].Holdings.HoldingsValue);

            //Console.WriteLine();

            var config2 = CreateTradeBarDataConfig(SecurityType.Forex, Symbols.EURUSD);
            securities.Add(new QuantConnect.Securities.Forex.Forex(SecurityExchangeHours, usdCash, config2, SymbolProperties.GetDefault(CashBook.AccountCurrency)));
            securities[Symbols.EURUSD].SetLeverage(100m);
            securities[Symbols.EURUSD].Holdings.SetHoldings(1.1m, 1000);
            securities[Symbols.EURUSD].SetMarketPrice(new TradeBar { Time = time, Value = 1.1m });
            //Console.WriteLine("EURUSD TMU: " + securities[Symbols.EURUSD].MarginModel.GetMaintenanceMargin(securities[Symbols.EURUSD]));
            //Console.WriteLine("EURUSD Value: " + securities[Symbols.EURUSD].Holdings.HoldingsValue);

            //Console.WriteLine();

            var config3 = CreateTradeBarDataConfig(SecurityType.Forex, Symbols.EURGBP);
            securities.Add(new QuantConnect.Securities.Forex.Forex(SecurityExchangeHours, gbpCash, config3, SymbolProperties.GetDefault(gbpCash.Symbol)));
            securities[Symbols.EURGBP].SetLeverage(100m);
            securities[Symbols.EURGBP].Holdings.SetHoldings(1m, 1000);
            securities[Symbols.EURGBP].SetMarketPrice(new TradeBar { Time = time, Value = 1m });
            //Console.WriteLine("EURGBP TMU: " + securities[Symbols.EURGBP].MarginModel.GetMaintenanceMargin(securities[Symbols.EURGBP]));
            //Console.WriteLine("EURGBP Value: " + securities[Symbols.EURGBP].Holdings.HoldingsValue);

            //Console.WriteLine();

            //Console.WriteLine(portfolio.CashBook["USD"]);
            //Console.WriteLine(portfolio.CashBook["EUR"]);
            //Console.WriteLine(portfolio.CashBook["GBP"]);
            //Console.WriteLine("CashBook: " + portfolio.CashBook.TotalValueInAccountCurrency);

            //Console.WriteLine();

            //Console.WriteLine("Total Margin Used: " + portfolio.TotalMarginUsed);
            //Console.WriteLine("Total Free Margin: " + portfolio.MarginRemaining);
            //Console.WriteLine("Total Portfolio Value: " + portfolio.TotalPortfolioValue);


            var acceptedOrder = new MarketOrder(Symbols.AAPL, 101, DateTime.Now) { Price = 100 };
            orderProcessor.AddOrder(acceptedOrder);
            var request = new SubmitOrderRequest(OrderType.Market, acceptedOrder.SecurityType, acceptedOrder.Symbol, acceptedOrder.Quantity, 0, 0, acceptedOrder.Time, null);
            request.SetOrderId(0);
            orderProcessor.AddTicket(new OrderTicket(null, request));
            var sufficientCapital = transactions.GetSufficientCapitalForOrder(portfolio, acceptedOrder);
            Assert.IsTrue(sufficientCapital);

            var rejectedOrder = new MarketOrder(Symbols.AAPL, 102, DateTime.Now) { Price = 100 };
            sufficientCapital = transactions.GetSufficientCapitalForOrder(portfolio, rejectedOrder);
            Assert.IsFalse(sufficientCapital);
        }

        /// <summary>
        /// Gets the margin cash 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 margin available for the trade</returns>
        public virtual decimal GetMarginRemaining(SecurityPortfolioManager portfolio, Security security, OrderDirection direction)
        {
            var holdings = security.Holdings;

            if (direction == OrderDirection.Hold)
            {
                return portfolio.MarginRemaining;
            }

            //If the order is in the same direction as holdings, our remaining cash is our cash
            //In the opposite direction, our remaining cash is 2 x current value of assets + our cash
            if (holdings.IsLong)
            {
                switch (direction)
                {
                    case OrderDirection.Buy:
                        return portfolio.MarginRemaining;
                    case OrderDirection.Sell:
                        return security.MarginModel.GetMaintenanceMargin(security)*2 + portfolio.MarginRemaining;
                }
            }
            else if (holdings.IsShort)
            {
                switch (direction)
                {
                    case OrderDirection.Buy:
                        return security.MarginModel.GetMaintenanceMargin(security)*2 + portfolio.MarginRemaining;
                    case OrderDirection.Sell:
                        return portfolio.MarginRemaining;
                }
            }

            //No holdings, return cash
            return portfolio.MarginRemaining;
        }

        /// <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)
        {
            //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;

            var lastTradeProfit = 0m;

            try
            {
                //Update the Vehicle approximate total sales volume.
                security.Holdings.AddNewSale(fill.FillPrice * Convert.ToDecimal(fill.AbsoluteFillQuantity));

                //Get the Fee for this Order - Update the Portfolio Cash Balance: Remove Transacion Fees.
                var order = new MarketOrder(security.Symbol, fill.FillQuantity, security.LocalTime.ConvertToUtc(security.Exchange.TimeZone), type: security.Type) {Price = fill.FillPrice, Status = OrderStatus.Filled};
                var feeThisOrder = Math.Abs(security.TransactionModel.GetOrderFee(security, order));
                security.Holdings.AddNewFee(feeThisOrder);
                portfolio.CashBook[CashBook.AccountCurrency].Quantity -= feeThisOrder;

                //Calculate & Update the Last Trade Profit
                if (isLong && fill.Direction == OrderDirection.Sell)
                {
                    //Closing up a long position
                    if (quantityHoldings >= fill.AbsoluteFillQuantity)
                    {
                        //Closing up towards Zero.
                        lastTradeProfit = (fill.FillPrice - averageHoldingsPrice) * fill.AbsoluteFillQuantity;

                        //New cash += profitLoss + costOfAsset/leverage.
                        portfolio.CashBook[CashBook.AccountCurrency].Quantity += lastTradeProfit + ((averageHoldingsPrice * fill.AbsoluteFillQuantity));
                    }
                    else
                    {
                        //Closing up to Neg/Short Position (selling more than we have) - Only calc profit on the stock we have to sell.
                        lastTradeProfit = (fill.FillPrice - averageHoldingsPrice) * quantityHoldings;

                        //New cash += profitLoss + costOfAsset/leverage.
                        portfolio.CashBook[CashBook.AccountCurrency].Quantity += lastTradeProfit + ((averageHoldingsPrice * quantityHoldings));
                    }
                    closedPosition = true;
                }
                else if (isShort && fill.Direction == OrderDirection.Buy)
                {
                    //Closing up a short position.
                    if (absoluteHoldingsQuantity >= fill.FillQuantity)
                    {
                        //Reducing the stock we have, and enough stock on hand to process order.
                        lastTradeProfit = (averageHoldingsPrice - fill.FillPrice) * fill.AbsoluteFillQuantity;

                        //New cash += profitLoss + costOfAsset/leverage.
                        portfolio.CashBook[CashBook.AccountCurrency].Quantity += lastTradeProfit + ((averageHoldingsPrice * fill.AbsoluteFillQuantity));
                    }
                    else
                    {
                        //Increasing stock holdings, short to positive through zero, but only calc profit on stock we Buy.
                        lastTradeProfit = (averageHoldingsPrice - fill.FillPrice) * absoluteHoldingsQuantity;

                        //New cash += profitLoss + costOfAsset/leverage.
                        portfolio.CashBook[CashBook.AccountCurrency].Quantity += lastTradeProfit + ((averageHoldingsPrice * absoluteHoldingsQuantity));
                    }
                    closedPosition = true;
                }

                if (closedPosition)
                {
                    //Update Vehicle Profit Tracking:
                    security.Holdings.AddNewProfit(lastTradeProfit);
                    security.Holdings.SetLastTradeProfit(lastTradeProfit);
                    portfolio.AddTransactionRecord(security.LocalTime.ConvertToUtc(security.Exchange.TimeZone), lastTradeProfit - 2 * feeThisOrder);
                }

                //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;
                    portfolio.CashBook[CashBook.AccountCurrency].Quantity -= (fill.FillPrice * Convert.ToDecimal(fill.AbsoluteFillQuantity));
                }
                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 + (decimal)fill.FillQuantity);
                            //Add the new quantity:
//.........这里部分代码省略.........