OCO String

[boaza]

Hi,

In the unmanaged approach, when OCO linking two orders, what is the correct usage of the OCO string? Do I generated it by myself, and give it as an argument to all orders I wish to link? Are there any restrictions? Should it be unique across the platform?

Thanks,
Boaz

[NinjaTrader_Joydeep]

Hello Boaz,
Thanks for your post.
In oco order you have to assign the oco string. If one order is filled/cancelled it will cancel all order with the same oco id.
So say the current market price of any contract is $100 and you place one buy limit order at $99 and another buy stop order at $101 with an oco id as “buy”, like

this.SubmitOrder(0, OrderAction.Buy, OrderType.Stop, 1, 0, 101, "buy", "BuyStop");

this.SubmitOrder(0, OrderAction.Buy, OrderType.Limit, 1, 99, "buy", "BuyLmt");

Thus if the buy limit order is filled, the buy stop order will get cancelled.


Also OCO ids are not tied to a strategy instance.

Please do let me know if I can assist you any further.