# Order Options

* **Reduce Only**                                                                                                                                                                                                                                                                                                    An order that can only reduce an existing position, not increase it or open a new position.
* **Post Only**                                                                                                                                                                                                                                                                                                    An order that is added to the order book but doesn’t execute immediately
* **Fill or Kill**                                                                                                                                                                                                                                                                                                   An order that must be filled entirely or not at all
* **Immediate or Cancel**                                                                                                                                                                                                                                                                                           An order that will be canceled if not immediately filled
* **Take Profit**                                                                                                                                                                                                                                                                                           An order that automatically closes a position when the price reaches a specified profit target
* **Stop Loss**                                                                                                                                                                                                An order that automatically closes a position when the price reaches a specified loss threshold