Founded in 1971, NASDAQ is one of the world's largest stock markets. The NASDAQ Index is the average stock price index that reflects the change of the NASDAQ stock market. The basic index is 100. Nasdaq-listed companies cover all emerging technology industries, including software, computers, telecommunications, biotechnology, and more. The NASDAQ stock market is divided into three tiers: NASDAQ Global Select Market, NASDAQ Global Market and NASDAQ Capital Market to attract different tiers of companies to list.