1, there are more listed companies in the United States. More than a decade ago, there were about 10 thousand listed companies in the US stock market, and there should be more than that. On June 5438+ 10 this year, the number of listed companies in China reached 2,500, about 1/4 in the United States. The technology stocks in the US stock market are well-deserved leaders in today's stock market. It is not easy to have three companies in the top 50 A shares.

2. Different investors. Pension funds, hedge funds and other institutional investors account for about half of American investors, while those in China account for about 10%- 15%. As professional investors, institutions are quite different from individual investors in terms of information acquisition ability and maturity of investment ideas, and their views on problems are more systematic and scientific.

3. The difference between long-term and immediate institutional evaluation. The core of the United States is to keep every excellent fund manager for a long enough term. In China, because the fund is also a new industry, there is a shortage of talents during its vigorous development, and the proportion of personnel turnover is large. The incentive method is basically one year.

4. The mechanism of supervision and delisting still needs to be strengthened, and the advantage of information asymmetry still exists for a long time. There are hundreds of US stocks entering and leaving the market every year. Few companies in China have delisted for many years, so people are not worried about small-cap stocks and common stocks. US stocks tend to remain unchanged before the quarterly report and fluctuate greatly after the quarterly report. A-share prices tend to move first, and the news comes out and then goes in the opposite direction, which is a clear sign that the market digests asymmetric information in advance.

The scientific research strength of A shares is much more luxurious than that of America. There are about 2,000 researchers in China, covering 1 listed company per capita, and there are basically 10 large securities firms in the United States. If you fold it down, there will be a research team of hundreds of people, covering 10-20 companies per capita. In other words, A shares are not short of value discoverers and flag raisers.

Extended data:

A shares, that is, RMB ordinary shares, are ordinary shares issued by companies in China for domestic institutions, organizations or individuals (from April 20 13, 1, domestic, Hong Kong, Macao and Taiwan residents can open A-share accounts) to subscribe and trade in RMB. A shares are not physical shares. Electronic recording, paperless, implementation of "T+ 1" delivery system, price limit (10%). The participating investors are Chinese mainland institutions or individuals. The stocks of listed companies in China include A shares, B shares, H shares, N shares and S shares.

Us stocks, that is, the us stock market. The opening hours are from Monday to Friday, 9:30- 16:00 eastern time, and the domestic time is: China 265438+ 0: 30-4: 00 daylight saving time and 22: 30-5: 00 non-daylight saving time.

References:

A shares-Baidu Encyclopedia US stocks-Baidu Encyclopedia