Thank you Peter, it's clear.

Can I place a limit combo order? Or it has to be market order for a combo?

Best

IBCS 2018/09/06 07:36:18
An order for a combo does not have to be a market order, the same order types that are supported on individual options are available on combos too, so yes, you can use limit orders.

Many thanks,
Peter C
Risk & Trade