One is the Dow Jones Industrial Index in American stock index futures, which is based on the stocks of 30 famous industrial companies. It is a representative, widely used and prominent stock price index and the most influential and authoritative stock price index in the world at present.

One is that Nasdaq in American stock index futures is mainly composed of high-tech companies, covering all new technology industries, including software and computers, telecommunications, biotechnology, retail and wholesale trade. It is mainly composed of hundreds of advanced technology, telecommunications and biological companies with the fastest development in the United States, including well-known high-tech companies such as Microsoft, Intel, AOL and Yahoo. It is synonymous with the "new economy". Nasdaq is more volatile.

Read more