Calculating cost of current holding

[gbajaj]

I want to calculate avg cost of my current holding/trades that i have longed.

is it right way to do it? is there any in built version of the api?

        private double CalculateAverageFillPrice(Account account)
        {

            double totalFillPrice = 0;
            int tradeCount = 0;
            lock (account.Executions){
                Print("CalculateAverageFillPrice " + account.Executions.Count);
                foreach (Execution execution in account.Executions)
                {
                    if (execution.Instrument.FullName != Instrument.FullName || execution.Order.OrderAction != OrderAction.Buy) {
                        continue;
                    }
                    Print("execution " + execution.Instrument.FullName + " " +  execution.Time.Date + " price " + execution.Price + " today " + DateTime.Now.Date);
                    DateTime executionTime = execution.Time;
                    if (executionTime.Date == DateTime.Now.Date)
                    {
                        totalFillPrice += execution.Price;
                        tradeCount++;
                    }
                }

                if (tradeCount > 0)
                {
                    return totalFillPrice / tradeCount;
                }
                else
                {
                    return 0.0;
                }
            }
            return 0.0;
        }​

[NinjaTrader_ChrisL]

Hello, thanks for writing in. This is already built into the scripting library, see the Position.AveragePrice property:

https://ninjatrader.com/support/helpGuides/nt8/NT%20HelpGuide%20English.html?position.htm

[gbajaj]

Does position represent overall average of the instrument? Lets say i have long term position of a stock which from $50 and i am also trading the stock today at $70? what would position return?
I want price from today's cost price

[QuantKey_Bruce]

The notional value of the position would be Position.Quantity * Instrument.MasterInstrument.PointValue * Close[0]... but if it's a futures position the margin requirements are not that high of course.

[NinjaTrader_ChrisL]

Hi, the Position.AveragePrice represents the total average position, so it will return the average between entry @50$ and entry @70$. If you need the position price for only the day trade, you will need to calculate this manually from within your script.

[QuantKey_Bruce]

I see you posted that this is an equity - if that's the case "point value" is 1 so it's just Position.Quantity * Close[0].