Kill

A kill is defined as a cancellation of an order that has already been placed but not yet executed. This term is typically associated with a "fill or kill" command, which is an order given to a broker that requires immediate action or it must be canceled, a kill. A fill or kill order is initiated by an investor who desires an immediate fill, but at a specific price. A fill or kill is typically requested for a larger quantity of stock. More often, institutions are concerned that a larger order may adversely impact the market and therefore utilize the fill or kill order option. A kill is the complete cancellation of an existing order, not to be confused with a separate order known as a stop. A stop order differs from a kill in that a stop is an order to buy or sell at a specified price. Examples of other fill or kill orders can include market or limit orders that require execution immediately. Fill and kill orders are not commonly used except under special circumstances.