Legal Definitions - fill-or-kill order

A fill-or-kill order is a type of stock market order that must be executed immediately or canceled. If the order cannot be filled immediately, it is automatically canceled. This type of order is used by investors who want to buy or sell a stock quickly and at a specific price.

For example, if an investor wants to buy 100 shares of XYZ stock at $50 per share, they can place a fill-or-kill order. If the order cannot be filled immediately at $50 per share, it will be canceled. This ensures that the investor does not end up buying the stock at a higher price than they intended.

Another example is if an investor wants to sell 500 shares of ABC stock at $75 per share. They can place a fill-or-kill order, and if the order cannot be filled immediately at $75 per share, it will be canceled. This ensures that the investor does not end up selling the stock at a lower price than they intended.