COBC = false and stops

[jrtrader]

I'm thinking about running a strategy with COBC = false.
What happens if my strategy is in a position and later in the trading session
my stop and a reversal in strategy position is called upon during the same tick?
Does the stop happen first and then a new strategy position taken?

I'm worried about multiple positions being taken.


Thanks

[NinjaTrader_Brett]

Hello,

This is a just worry to have.

This would be known as an over fill.

Over-Fills is a serious issue that can occur when using complex entry conditions that bracket the market in both directions end up with both entries being filled instead of one being cancelled. Over-Fills can also occur when you place a trade quickly hoping to close a position while a prior order to close the same position already had an in-flight execution. The exact scenarios in which an over-fill can occur is highly dependent on the specific strategy programming. By default, NinjaTrader will protect against over-fills even though you are using the Unmanaged approach by halting the strategy, but should you decide to custom program your own over-fill handling it is up to you to either prevent over-fills from being a possibility in your code or by introducing logic to address over-fills should one occur.


As a workaround you may want to make sure to cancel your stop before reversing your position. Or code your own ovefill handing in the case this was to occur:

http://www.ninjatrader.com/support/helpGuides/nt7/ignoreoverfill.htm?zoom_highlightsub=overfill

Let me know if I can be of further assistance.