A financial analyst tracks the performance of a number of companies or industries, evaluates their potential value as investments, and makes recommendations to buy, sell, or hold specific securities. When the most highly respected analysts express a strong opinion about a share, there is often an immediate impact on that share's price as investors rush to follow the advice. Some analysts work for financial institutions, such as mutual fund companies, brokerage firms, and banks. Others work for analytical services, such as Crisil , Standard & Poor's, or Moody's Investors Service, or as independent evaluators. Analysts' commentaries appear regularly in the financial press, and on radio, television, and the Internet.