Nasdaq, also known as Nasdaq and American Science and Technology Index, is the English abbreviation of the name of the automatic quotation system created by the National Association of Securities Dealers in 1968. Nasdaq is characterized by collecting and publishing quotations from securities companies that trade unlisted shares over the counter.

It has now become one of the largest stock exchange markets in the world. At present, there are more than 5,200 listed companies. Nasdaq is the first stock market in the world to adopt electronic trading, with more than 260,000 computer sales terminals in 55 countries and regions.

Extended data

Nasdaq composite index is a barometer representing the changes of market value of various industry categories. Therefore, the Nasdaq Composite Index is more comprehensive than the Standard & Poor's 500 Index and the Dow Jones Industrial Average (it only includes 30 famous industrial and commercial companies, 20 transportation companies and 65,438+05 public utility companies).

The Nasdaq Composite Index includes more than 5,000 companies, more than any other single stock market. Because it has such a broad foundation, it has become one of the most influential stock market indexes.

Baidu Encyclopedia-Nasdaq Index