Unmanaged One-Updates-Other

[Belcanto]

The unmanaged SubmitOrder(0 method has an "oco" string field, which is documented as "one-cancels-other".

Experimenting with the sim101 environment, I noticed that this is actually "one-updates-other", namely, it reduces order size on a partial-fill of the tied order.

This may sound silly, but can you acknowledge that this is indeed the case, and "OCO" is actually "OUO"?

Thanks,
Belcanto

[NinjaTrader_CalH]

Belcanto,

Thank you for your post.

This is part of the One cancels other function, as the OCO will cancel other working orders opposite.

Say you have a position of 10 and working stop and profit. Profit gets part filled for 4, this fill will cause the OCO to kick in for the stop to cancel 4 contracts. You could say it updates it but it is indeed cancelling 4 contracts.

Let me know if I can be of further assistance.