Full formBusiness & Corporate
FOKstands forFill or Kill
Full Form of FOK
What is FOK?
Fill or Kill (FOK) is a type of trading order commonly used in stock exchanges, including India’s National Stock Exchange (NSE) and Bombay Stock Exchange (BSE). It instructs a broker to execute the entire order quantity immediately at the specified price or better, or else cancel the entire order. This order type prevents partial fills, making it ideal for large institutional trades where executing only part of the order could disrupt price or strategy. FOK orders are typically employed by mutual funds, foreign portfolio investors, and high-frequency traders during volatile market conditions. They are used primarily for equities, derivatives, and commodity trading. In India, the Securities and Exchange Board of India (SEBI) regulates such order types under its market microstructure rules. For students preparing for NISM, CFA, or SEBI examinations, understanding FOK is essential as it appears in questions related to order management and market liquidity. The order must be placed during regular market hours and is often combined with limit or market price instructions. While retail investors rarely use FOK due to the large size requirement, it remains a critical tool for professional traders aiming for precise execution.
FOK का फुल फॉर्म
भरें या रद्द करें (फिल ऑर किल)
Example
The fund manager placed a FOK order to buy 50,000 shares of HDFC Bank at ₹1600, requiring immediate full execution or complete cancellation.
FOK — frequently asked questions
What is the full form of FOK?
The full form of FOK is Fill or Kill, a type of trading order that must be filled in its entirety or cancelled immediately.
How does a FOK order work in the Indian stock market?
A FOK order instructs the broker to execute the entire order quantity at the specified price or better instantly. If the full quantity cannot be filled, the order is automatically cancelled, avoiding partial fills.
Is FOK order suitable for retail investors in India?
FOK orders are generally used by institutional investors and high-frequency traders due to the requirement of large order sizes. Retail investors rarely use them as most retail trades are small and can be filled via regular limit or market orders.