Trading 101 - Order Types: Fill or Kill (FOK)

By TradingBull | TradingBull_articles | 21 Jan 2021


Fill or Kill (FOK) is a specific “Time in Force” order type that involves either the full and instant execution of a trade or its cancellation. It is typically used when traders try to fill large orders on the spot, at a specific price and are not interested in partial fills (= everything or nothing, right away).

Pros: Useful for large volume orders fulfillment (Institutions and Funds). Can trigger hidden orders from opposite side.

Cons: Risks of no execution for high volumes in low liquidity markets. Difficulty to control buy/sell price efficiently.

Fill or Kill can be used in combination with limit and stop orders. In such case, they trigger only when a threshold is met and have to execute fully and nearly instantly or be cancelled.

FOK orders pay taker fees.

How do you rate this article?



Cross Exchanges trading and Digital Assets management platform


TradingBull publications about specialized blockchain research, news and industry-related topics.

Send a $0.01 microtip in crypto to the author, and earn yourself as you read!

20% to author / 80% to me.
We pay the tips from our rewards pool.