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Fat-finger error
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Fat-finger error
A fat-finger error is a keyboard input error or mouse misclick that occurs from a simple input mistake, causing unwanted secondary behavior. In common parlance, it simply refers to a common typographical error made on a touchscreen or physical keyboard that occurs when the wrong selection is made, or multiple selections are made due to options or keyboard keys being too close together.
In the context of financial markets, a fat finger error is specifically an instance where the details of a buy or sell order are mistakenly entered by a trader.
In the context of financial markets such as the stock market or foreign exchange market, a fat-finger error is an instance where an order to buy or sell is placed of far greater size than intended, for the wrong stock or contract, at the wrong price, or with any number of other input errors.
Automated systems within trading houses may catch fat-finger errors before they reach the market or such orders may be cancelled before they can be fulfilled. The larger the order, the more likely it is to be cancelled, as it may be an order larger than the amount of stock available in the market.
Fat-finger errors are a product of the electronic processing of orders which requires details to be input using keyboards. Before trading was computerised, erroneous orders were known as "out-trades" which could be cancelled before proceeding. Erroneous orders placed using computers may be harder or impossible to cancel.
In order to have legal certainty at the stock exchange, all exchanges have tight deadlines to request a review and cancellation, if possible. At the NYSE, BATS, CBOT, NASDAQ, OMX and American Stock Exchange requests for review must be received "within thirty (30) minutes of execution time".
At the NYSE-Euronext Liffe (Paris, Brussels, Amsterdam), "Where a member has executed an Erroneous trade, he will have a maximum of 30 minutes from the time of execution within which he may contact Market Services to request an invalidation".
At the London Stock Exchange "any requests from member firms to cancel trades should be made to the Market Supervision department as soon as possible and in any event within 30 minutes of the trade time".
Hub AI
Fat-finger error AI simulator
(@Fat-finger error_simulator)
Fat-finger error
A fat-finger error is a keyboard input error or mouse misclick that occurs from a simple input mistake, causing unwanted secondary behavior. In common parlance, it simply refers to a common typographical error made on a touchscreen or physical keyboard that occurs when the wrong selection is made, or multiple selections are made due to options or keyboard keys being too close together.
In the context of financial markets, a fat finger error is specifically an instance where the details of a buy or sell order are mistakenly entered by a trader.
In the context of financial markets such as the stock market or foreign exchange market, a fat-finger error is an instance where an order to buy or sell is placed of far greater size than intended, for the wrong stock or contract, at the wrong price, or with any number of other input errors.
Automated systems within trading houses may catch fat-finger errors before they reach the market or such orders may be cancelled before they can be fulfilled. The larger the order, the more likely it is to be cancelled, as it may be an order larger than the amount of stock available in the market.
Fat-finger errors are a product of the electronic processing of orders which requires details to be input using keyboards. Before trading was computerised, erroneous orders were known as "out-trades" which could be cancelled before proceeding. Erroneous orders placed using computers may be harder or impossible to cancel.
In order to have legal certainty at the stock exchange, all exchanges have tight deadlines to request a review and cancellation, if possible. At the NYSE, BATS, CBOT, NASDAQ, OMX and American Stock Exchange requests for review must be received "within thirty (30) minutes of execution time".
At the NYSE-Euronext Liffe (Paris, Brussels, Amsterdam), "Where a member has executed an Erroneous trade, he will have a maximum of 30 minutes from the time of execution within which he may contact Market Services to request an invalidation".
At the London Stock Exchange "any requests from member firms to cancel trades should be made to the Market Supervision department as soon as possible and in any event within 30 minutes of the trade time".