FOK

abbreviation
Updated on: 26 Jul 2017

Definition of FOK

free of knots

There's more!

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!
Already a subscriber? Log in.

Financial Definition of FOK

FOK

What It Is

Fill or kill (FOK) is a client's instruction to his or her broker to either fill the entire order immediately or to cancel the order.

How It Works

Let's assume you want to purchase 1 million shares of Company XYZ at $20 per share. You might instruct your broker to "fill it or kill it," meaning that your broker should buy the entire one million shares at $20 a share within a few seconds or do nothing at all.

Why It Matters

When traders are aware of a big order, they will drive the price up, thinking that the big buyer will be willing to pay more. Fill or kill orders are useful in these circumstances because the investor can attempt to lock in a certain price.


Seen and Heard

What made you want to look up FOK? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

of yeast or being unsettled or frivolous

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!