Welcome to the Financial Times Lexicon

Browse thousands of words and phrases selected by Financial Times editors and suggest new terms for the glossary.

 

Term of the day

fat finger error

A fat finger error is a widely used term in the finance industry and describes a typographical error supposedly caused by hitting the wrong key, or by making mistakes when inputting a quantity into a computer (for example, adding a zero to the end of a figure).

 

fat finger error in the news

Since the advent of trading on computers, errors involving so-called "fat fingers" have rarely been far away. Among the most notable examples came in 2006 when an error by a trader at Mizuho Securities in Japan...