Dow Jones Industrial Average is an arithmetic average stock price index compiled by Charles Henry Dow, the founder of Dow Jones Company (Charles Henry Dow1851-KLOC-0/902) in 1884. It is the oldest stock index in the world. However, the current benchmark date of the Dow is 1 9281kloc-0/October1. Because the closing price of the Dow Jones index on this day is exactly 100 dollars, it is set as the benchmark date.

Standard & Poor's Stock Price Index, referred to as Standard & Poor's Index, is a stock price index compiled by Standard & Poor's Company, the largest securities research institution in the United States. The company began to compile and publish the stock price index on 1923. Initially, 230 stocks were selected and two stock price indices were compiled. By 1957, the range of this stock price index has expanded to 500 stocks. That is, the current Standard & Poor's 500 Index takes the average market price of sample stocks from 194 1 to 1943 as the base period, takes the number of listed stocks as the weight, and carries out weighted calculation according to the base period, with the base point of 10.

The full name of the Nasdaq stock market is: National? Association? Securities? Dealer? Automation? NASDAQ is an electronic stock trading market established and supervised by NASDAQ at 197 1. American securities companies quote stock trading prices. The Association is a self-regulatory organization registered with the US Securities and Exchange Commission. Almost all American securities brokers and dealers are members of it. The benchmark date of Nasdaq index is1971February 5, and the base point is 100. However, its establishment date is198565438+1October 3 1, and the period from the base date to the establishment date is generated by retrospective historical data. When the index was established, the point had reached 278 points.

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