1, Dow Jones index.
The full name of the Dow Jones index is the average stock price index, which is the oldest stock index in the world and the most influential and authoritative stock price index in the world at present. The Dow Jones index was first compiled by Charles Henry Dow, the founder of Dow Jones Company, in 1884. It is an arithmetic average stock price index. Now the calculation formula is: average stock price = sum of selected stock prices/Dow dividing line, which will be affected by the integration of share split and the company.
The Dow Jones index consists of four stock price average indexes:
(1) Dow Jones Industrial Average, which is based on the stocks of 30 famous industrial companies. This average stock price index is widely quoted as the representative of the Dow Jones index, which is usually called the Dow Jones index.
(2) Dow Jones Transportation Stock Average Index, based on the stocks of 20 famous transportation companies.
(3) Dow Jones public utility share price average index, with 15 famous public utility companies as the compilation object.
(4) Dow Jones stock average price index, which is based on the stocks of 65 companies involved in the above three stock average price indexes.
2. Nasdaq index.
Nasdaq, also known as Nasdaq and American Science and Technology Index, is one of the largest securities trading markets in the world, which is characterized by collecting and publishing the quotations of securities companies that trade unlisted stocks over the counter. Nasdaq's listed companies cover all new technology industries, including software and computers, telecommunications, biotechnology, retail and wholesale trade. , is synonymous with the "new economy" in the United States.
Nasdaq index is an average stock price index reflecting the changes of Nasdaq stock market and a barometer representing the changes of market value of various industrial categories. The Nasdaq Composite Index includes more than 5,000 companies, surpassing any other single stock market, and is one of the most influential stock market indexes.
3. Standard & Poor's 500 Index.
Standard & Poor's 500 Index (SP500Index for short) is a stock index that records 500 listed companies in the United States. This stock index is created and maintained by Standard & Poor's Company. Prepared by Standard & Poor's Company on 1957, the base period is 194 1 to 1943, and the base period index is set to 10. The weighted average method is used to calculate, and the weighted calculation is carried out according to the base period.
Compared with the Dow Jones Industrial Average, the Standard & Poor's 500 Index has the characteristics of wide sampling area, strong representativeness, high accuracy and good continuity, and is generally regarded as the ideal target of stock index futures contracts, which can reflect broader market changes.