1. Dow Jones stock index
It is the oldest stock index in the world, and its full name is the average stock price. Prepared by charles dow, founder of Dow Jones Company, on 1884. Its original Dow Jones stock price average index is based on 1 1 representative railway companies, which is calculated and compiled by arithmetic average method and published in the Daily Communication edited and published by charles dow himself.
2. Nasdaq (Nasdaq)
Nasdaq index is an average stock price index reflecting the changes of Nasdaq stock market, and its basic index is 100. Nasdaq's listed companies cover all new technology industries, including software and computers, telecommunications, biotechnology, retail and wholesale trade.
3. S&P 500 Index
It was compiled by Standard & Poor's Company in 1957. The initial constituent stocks include 425 industrial stocks, 15 railway stocks and 60 public utility stocks. From July 1 9761,its constituent stocks were changed to 400 industrial stocks, 20 transportation stocks, 40 public utilities stocks and 40 financial stocks. It takes 194 1 to 1942 as the base period, and the base period index is set to 10. It is calculated by the weighted average method, with the listed amount of the stock as the weight, 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.