Fill Order

This Issue in United States

Concept of Fill or Kill Order (FOK) in Futures Trading

In this context of financial law, the following is a definition of Fill or Kill Order (FOK): An order that demands immediate execution or cancellation. Typically involving a designation, added to an order, instructing the broker to offer or bid (as the case may be) one time only; if the order is not filled immediately, it is then automatically cancelled.