Executes immediately at the best available prices until the full size is filled. If the order is larger than the entire book, or the matching price exceeds the price limit, the remaining quantity is canceled.
All-or-nothing. If the entire order can be filled at the specified price, it executes in full. Otherwise the entire order is canceled with no partial fill.
Guarantees you are the maker. If the order would match visible quantity
immediately upon placement, it is canceled instead. If it matches only hidden
quantity, the incoming Post Only order is marked as maker and the resting hidden
order is marked as taker.
Can only decrease an existing position. It will not open a new position or increase your current one. Useful for closing out a position without risk of accidentally flipping direction.
