Financial Times Industrial Ordinary Share Index (F.T. Index)
An index number maintained continuously, hour by hour, and published each day by the Financial Times. It aims, by following the fortunes (as reflected in Stock Exchange market prices) of a representative selection of industrial ordinary shares of public companies, to chart the health of the country’s economy in terms of the success or otherwise of its commerce and industries. The index does not cover finance companies but it is probably the best known of the many maintained by the Financial Times. Others are the Financial Times Actuaries Share Index, which, because it is weighted and more broadly based, is of interest to trustees, and various special indices which deal with different categories of securities, e.g. government securities, fixed interest securities, etc.
Reference: The Penguin Business Dictionary, 3rd edt.