Is it possible in Ninja Trader to put orders on chart trader on ES chart and then, when this order is triggered, it simultaneously executes market order on SPY.
For example, I put buy stop order ES at 1250.25. This order is triggered and then market order buys SPY at 125.04.
Can it be done with some indicator or strategy? I would like to have it so I could trade ETFs, while doing analysis on futures charts.
As I see it, indicator should have two entries - first is the ticker of the other instrument (in this case SPY) and quantity for the other instrument. Maybe someone already made something like that for pair trading.
I think it should be simple, but I don't have that kind of programming skills, so please help.