fat-finger error 胖手指失误

A fat-finger error is a keyboard input error in the financial markets such as the stock market or foreign exchange market whereby 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. 

“胖手指失误”指的是金融市场中的键盘输入错误，比如股票市场或者外汇交易市场。交易员在输入购买或者出售指令时出现非常大的偏差，比如交易的股票或合约有误，价格有误，或者出现其他的输入错误。

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. 

在指令到达交易市场前，交易所内的自动系统会发现胖手指失误，或者这类指令会在实现之前被取消。下达的错误指令量级越大，被取消的可能就越大，因为有可能指令涉及的股票数额比市场上可用的股票数额还要多。