Fill-Or-Kill Parameters

Parameter

Fill-Or-Kill (FOK) parameters define the conditions under which an order is executed immediately and completely, or not at all. These parameters are crucial in high-frequency trading and order book dynamics, particularly within cryptocurrency derivatives markets where liquidity can be fragmented. They represent a commitment to immediate fulfillment, contrasting with market orders that accept partial fills or limit orders that wait for a specific price. Precise configuration of these parameters directly impacts order execution certainty and market impact.