A Fill and Kill Order (FAK) is an order type that is commonly used for bulk orders. This allows you to place a buy or sell order at your preferred price (limit price) and any unfilled amount or portion will be canceled after the order has been executed.
Example:
If you place a FAK buy order for 1,000 XRP with your preferred price of PHP 13.00 each, and there is only 500 XRP available on the market, your FAK order will buy the 500 XRP available while the unfilled amount of your order will immediately be canceled.
NOTE: Stop Order has been discontinued as of February 20, 2020, and has been replaced with the order type Fill and Kill (FAK).