1. What is the S&P 500 Index?
Standard & Poor's is the world's leading financial analyst, founded in 1860 by Mr Henry Varnum Poor. Standard & Poor's was formed in 1941 by Poole Publishing and Standards.
Standard & Poor's provides investors with credit rating, independent analytical research, investment consulting and other services, including a series of indices such as the Standard & Poor's Global 1200 Index, which reflects global stock market performance, and the Standard & Poor's 500 Index, which is the benchmark for the US portfolio index. Its parent company is McGraw-Hill.
The Standard & Poor's 500 Index, abbreviated as S&P 500 Index, is a stock index of 500 listed companies in the United States. This stock index was created and maintained by Standard & Poor's. All companies covered by the Standard & Poor's 500 Index are listed on major US exchanges, such as the New York Stock Exchange and Nasdaq. Compared to the Dow, the S&P 500 includes more companies, so the risks are more fragmented and reflect broader market changes.
The Standard & Poor's 500 Index was compiled by Standard & Poor's in 1957. The initial constituent stock consisted of 425 industrial stocks, 15 rail stocks and 60 utility stocks. Since July 1, 1976, its constituent stocks have been composed of 400 industrial stocks, 20 transportation stocks, 40 utility stocks and 40 financial stocks. It is based on the period from 1941 to 1943, and the base period index is set at 10, which is calculated by the weighted average method. The weighted calculation is based on the base period and the weighted calculation according to the base period. Compared with the Dow Jones Industrial Average Stock Index, the Standard & Poor's 500 Index has the characteristics of wide sampling, strong representativeness, high precision and good continuity. It is generally considered to be the target of an ideal stock index futures contract.
The S&P index is based on 1941-1943. The sum of the price of each stock multiplied by the number of issued shares is expressed as the numerator, and the sum of the base price multiplied by the number of shares issued is the percentage after the denominator is divided. Since the index is calculated based on the price of the vast majority of common stocks listed on the New York Stock Exchange, it can flexibly adjust the price changes caused by the subscription of new shares, share dividends and stock splits. The index value is more accurate, and it has good continuity and is, therefore, better represented than the Dow Jones index.
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