1. Dow Jones;

2. Nasdaq;

3. S&P 500. The Dow Jones index focuses on traditional industries and transportation, the Nasdaq index focuses on science and technology, and the S&P 500 focuses on energy, public utilities and finance.

The three major indexes of US stocks are the weathervanes of global financial markets. Many times, its fluctuations will have different degrees of impact on the financial markets of various countries.

The total market value base of US stocks is very large, and its current value has exceeded 40 trillion US dollars, and its share in the global stock market has also exceeded 40%. From the data, we can see its influence.

At present, the currency commonly used in the world is the US dollar, which is issued by the United States. Therefore, the United States can respond to the challenges of various stages of the US financial market by regulating the currency, thus consolidating the position of US stocks in the global financial market.

Us stocks, that is, the us stock market. Opening hours: daylight saving time is adopted in the United States from the second Sunday in March to the first Saturday in June, 165438+, during which the trading hours are 265438+ Beijing time from 0: 30 pm to 4: 00 am the next day. However, from early June 165438+ to early March, the trading time is from 22: 30 pm Beijing time to 5: 00 am the next day.

On March 9, 2020, the new york stock market plunged at the opening, and then the decline reached the upper limit of 7%, triggering the fuse mechanism. On March 12, the Standard & Poor's 500 Index of US stocks fell by 7.02%, causing the market to close for 15 minutes. On March 16, the three major American stock indexes plummeted, and the S&P 500 index fell by more than 7%, triggering the fuse mechanism and suspending trading for 15 minutes. At noon on March 18, the new york stock market crash triggered the fuse mechanism again.

The stock price index is an index obtained by McGraw Hill Company from 500 stocks selected from new york Stock Exchange, American Stock Exchange and OTC market, including 400 industrial stocks, 40 public utilities stocks, 40 financial stocks and 20 transportation stocks. The average share price from 194 1 to 1943 is based on 65433. P company promotion. Because s&; P index accounts for almost 80% of the total value of NYSE shares, and stock selection takes into account market value, liquidity, industry representativeness and other factors. Therefore, as soon as this index product was launched, it was welcomed by institutional legal persons and fund managers and became an important reference index for evaluating operational performance.