Stop trading after first [x] trades of a day result in a cumulative loss

[realblubb]

Hello,

I was trying to develop a simple script that is also based on the fact that on certain days, if eg. the first two trades result in a cumulative loss, or the first three trades are consecutive losses, the script stops all activity for the day, but resumes normal trading activity the next day.

thank you for your help.

[NinjaTrader_ChelseaB]

Hello realblubb,

Welcome to the NinjaTrader forums!

Below is a link to support article with helpful resources on getting started with C# and NinjaScript.

https://support.ninjatrader.com/s/article/Developer-Guide-Getting-Started-with-NinjaScript

You can check the SystemPerformance.AllTrades collection to see if the last trade.CumProft is less than 0, and then set a bool to stop trading.

https://ninjatrader.com/support/helpGuides/nt8/trade.htm

https://ninjatrader.com/support/helpGuides/nt8/systemperformance.htm

This example below has similar logic to stop trading, but after exceeding an amount of loss.

https://forum.ninjatrader.com/forum/ninjatrader-8/strategy-development/93881-daily-loss-limit-examples#post93881

[realblubb]

Thank you for your help. I tried the following approach:

protected override void OnPositionUpdate(Cbi.Position position, double averagePrice,
int quantity, Cbi.MarketPosition marketPosition)
{
if (SystemPerformance.AllTrades.Count > 1)
{

Trade lastTrade = SystemPerformance.AllTrades[SystemPerformance.AllTrades.Count - 1];
if(position.Instrument==this.Instrument)
{
if(Position.MarketPosition==MarketPosition.Flat)tr adecount++;
if(lastTrade.Entry.Instrument==this.Instrument)day profit+=lastTrade.ProfitCurrency;
if(tradecount>=maxtrades&&dayprofit<0)Pause=true;

}
Print (string.Format( "Dayprofit: {0}, Tradecount: {1}, Pause: {2}", dayprofit,tradecount,Pause));

}
}

In principle it works, but the day profit sometimes adds the same trade twice. I didnt find out exactly when (potentially when the trade stretches over one day), but it sometimes distorts the result.

[NinjaTrader_ChelseaB]

Hello realblubb,

It appears you are using the tradecount variable to set a bool named Pause to true. My guess is this bool is used in the condition that submits the entry, though that code was not included.

Where is tradecount being incremented each time SystemPerformance.AllTrades.Count, and where is this being reset on a new session?