The Financial Times Stock Exchange 100 Index, also called the FTSE 100 Index, FTSE 100, FTSE, or, informally, the "Footsie" / ˈ f ʊ t s i /, is a share index of the 100 companies listed on the London Stock Exchange with the highest market capitalisation. It is seen as a gauge of prosperity for businesses regulated by UK company law. Below you will find information about the UK 100 CFDS Index. The UK FTSE 100 Index is a stock market index compiled of the top 100 capitalized UK companies listed on the London Stock Exchange. You may find more information by going to one of the sections on this page such as historical data, charts, technical analysis and others.