Limit the number of Instrument

[Edward Kunafi]

Hello Support,

Strategy and indicator can be applied to as many chart as one's computer can handle. Is there a way for a strategy to limit the number of instruments it can trade ?

Thanks.

Regards,

Edward K.

[NinjaTrader_Bertrand]

Edward Kunafi, you could check which instrument(s) the strategy is run on via queries to the Instrument class in the code - http://www.ninjatrader-support.com/H...mentClass.html

[Edward Kunafi]

Hello Bertrand,

I read the links but still wondering how I can tell the total number of instruments on all the charts that use the strategy. Within the strategy Initialize, if I test the variable and it is non null, that would count one instrument? How do I know that instrument on chart just for indicators or with strategy ? If two other charts with two different instruments already uses the strategy how is it reflected ?
Do you have sample codes on Instrument?

Thanks.

Regards,
Edward K.

[NinjaTrader_Bertrand]

Edward, this is unfortunately not possible to limit the # of instances a strategy can be applied. I was referring to merely locking it on a # of instrument that you enabled it on to work on.

[Edward Kunafi]

Hello Bertrand,

Ok, let's forget about instrument. How can we tell the number of instances the strategy exists already on charts. NT should have this somewhere.

Thanks.

Regards,

Edward K.

[NinjaTrader_JoshP]

Edward,

There is no programmatic access to how many times a strategy is running. Each instance only knows about itself and nothing else. You can count how many there are running manually by looking at the Strategies tab of the Control Center.