Fill Or Kill - FOK

DEFINITION of 'Fill Or Kill - FOK'

A type of time-in-force designation used in securities trading that instructs a brokerage to execute a transaction immediately and completely or not at all. This type of order is most likely to be used by active traders and is usually for a large quantity of stock. The order must be filled in its entirety or canceled (killed). The purpose of a fill or kill order is to ensure that a position is entered at a desired price.

BREAKING DOWN 'Fill Or Kill - FOK'

Without a fill or kill designation, it might take a prolonged period of time to complete a large order. In reality, however, the fill-or-kill type of trade does not occur very often. Other methods of instructing a brokerage on the time frame in which a trade is to be executed include "immediate or cancel," which means to fill all or part of the order immediately, then cancel any part that cannot be filled, and "good ‘til canceled," which keeps an order open until it is able to be filled at a specified price.

RELATED TERMS
  1. Limit Order

    An order placed with a brokerage to buy or sell a set number ...
  2. At-Or-Better

    An order condition instructing a broker to only fill a transaction ...
  3. Time In Force

    A special instruction used when placing a trade to indicate how ...
  4. Stop-Limit Order

    An order placed with a broker that combines the features of stop ...
  5. Fill

    The action of completing or satisfying an order for a security ...
  6. Market Order

    An order that an investor makes through a broker or brokerage ...
Related Articles
  1. Investing Basics

    Principal Trading and Agency Trading

    Ever wonder what happens behind the scenes when you buy or sell a stock? Read on and find out!
  2. Investing Basics

    Understanding Order Execution

    Find out the various ways in which a broker can fill an order, which can affect costs.
  3. Active Trading Fundamentals

    The Basics Of Trading A Stock

    Taking control of your portfolio means knowing what orders to use when buying or selling stocks.
  4. Charts & Patterns

    How To Use Volume To Improve Your Trading

    The basic guidelines to analyzing volume may not apply in all situations, but overall, they can help direct entry and exit decisions.
  5. Trading Strategies

    4 Common Active Trading Strategies

    Active trading entails buying and selling securities with the intent of profiting from short-term price movements.
  6. Technical Indicators

    Basics Of Algorithmic Trading

    Algorithmic trading is the process of using computers for placing trades in order to generate profits at a speed and frequency that are beyond a person’s capability.
  7. Investing Basics

    How To Choose The Right Online Trading Broker

    The online broker market is becoming more competitive, but differences exist in services that can help traders choose the broker that’s right for them.
  8. Active Trading Fundamentals

    The Risks and Rewards of Day Trading the UWTI (UWTI)

    Learn about the VelocityShares 3x Long Crude ETN, as well as its issuing company VelocityShares, and the potential risks and rewards of the ETN.
  9. Trading Systems & Software

    The Perfect Moving Averages For Day Trading (AAPL)

    5-, 8- and 13-bar simple moving averages offer perfect inputs for day traders seeking quick profits on the long and short sides.
  10. Professionals

    Quit Your Job To Trade Stocks?

    Ready to quit your day job and become a full-time trader? These tips will help you determine your area of expertise.
RELATED FAQS
  1. How can I use a buy limit order to buy a stock?

    An investor uses a buy limit order to buy a stock at a specific price or better price. Unlike a market order that takes the ... Read Full Answer >>
  2. What is Fibonacci retracement, and where do the ratios that are used come from?

    Fibonacci retracement is a very popular tool among technical traders and is based on the key numbers identified by mathematician ... Read Full Answer >>
  3. What's the difference between a stop and a limit order?

    Different types of orders allow you to be more specific about how you'd like your broker to fulfill your trades. When you ... Read Full Answer >>
  4. How do I place an order to buy or sell shares?

    It is easy to get started buying and selling stocks, especially with the advancements in online trading since the turn of ... Read Full Answer >>
  5. How do I set a strike price in foreign exchange trading?

    In trading with a foreign exchange, a trader can set a strike price for a currency pair by entering a limit order or a stop ... Read Full Answer >>
  6. How do I place a buy limit order if I want to buy a stock during an initial public ...

    During an initial public offering, or IPO, a trader may place a buy limit order by choosing "Buy" and "Limit" in the order ... Read Full Answer >>
Hot Definitions
  1. Harry Potter Stock Index

    A collection of stocks from companies related to the "Harry Potter" series franchise. Created by StockPickr, this index seeks ...
  2. Liquidation Margin

    Liquidation margin refers to the value of all of the equity positions in a margin account. If an investor or trader holds ...
  3. Black Swan

    An event or occurrence that deviates beyond what is normally expected of a situation and that would be extremely difficult ...
  4. Inverted Yield Curve

    An interest rate environment in which long-term debt instruments have a lower yield than short-term debt instruments of the ...
  5. Socially Responsible Investment - SRI

    An investment that is considered socially responsible because of the nature of the business the company conducts. Common ...
Trading Center