A market database published by Standard and Poor's. The comprehensive Compustat database provides company data going back 40 to 50 years on over 65,000 securities, as of 2010. The type of information published by Compustat include: Global Industry Classification Standards (GICS), pricing data, earnings data, insider and institutional holdings, and other information directed at investors and analysts. According to Standard and Poor's in 2010, Compustat is used by over 30,000 top buy-side firms managing approximately $139 trillion worldwide. Compustat is also used by the CFA Institute, Internal Revenue Service (IRS) and many leading business schools.