The TA BlueTech Index is a stock market index all capitalised information technology and biotechnology companies listed on the Tel Aviv Stock Exchange. The index was launched on 3 April 2011 as the TA BlueTech-50 Index and replaced by the Tel-Tech Index and the Tel-Tech 15 Index. In June 2014, as a result of changes in the criteria required for companies to be listed in the Index, its name was changed to "TA BlueTech Index". Wikipedia