At present, there is a popular saying in the market that SSE 50 can be regarded as a pile of white horse stocks, CSI 300 is a large-cap stock, and CSI 500 is a small and medium-sized stock. The market value of Shanghai and Shenzhen 300 companies is about 60 billion, and the market value of CSI 500 is about 30 billion. However, the 50 stocks of SSE 50 are actually included in the 300 stocks of CSI 300, and the 500 stocks of CSI 500 do not intersect with them. All companies that can be selected for the Shanghai and Shenzhen 300 Index are due to market value and stock liquidity.

Judging from the demonstration enterprises in the industry, they are obviously large companies and well-known enterprises, but there are also some points. Although the Shanghai and Shenzhen 300 Index brings together high-quality companies from all walks of life, the financial industry accounts for a very large proportion. There are 60 financial sectors, accounting for 37.2 1% of the total index. That is, in other industries, it is several times or even dozens of times, which is a bit unbalanced.

If you buy the CSI 300 Index Fund, the trend of the financial sector will have a greater impact on the CSI 300, and I always think that the CSI 300 Index is an embarrassing index 500 sandwiched between the SSE 50 and the CSI 500. Regarding the difference between CSI 500 and CSI 300, the answers are as follows:

1. Different constituent stocks: the top 300 stocks in terms of liquidity and scale in Shanghai and Shenzhen stock markets. The Shanghai and Shenzhen 500 Index refers to the index compiled by the 500 stocks with the largest market value after excluding the constituent stocks of the Shanghai and Shenzhen 300 Index (that is, the 300 stocks with the largest market value in the Shanghai and Shenzhen stock markets), and the rest are capitalized.

Second, the situation reflected is different: Shanghai and Shenzhen 300 represents the large-cap stock market in Shanghai and Shenzhen stock markets. Around 20 19, the market value of Shanghai and Shenzhen 300 constituent stocks accounts for about 60% of the total market value of A shares, and CSI 500 is mainly used to reflect the market situation of small and medium-sized stocks.

Third, the degree of fluctuation is different: Shanghai and Shenzhen 300 is large, so the fluctuation range is smaller than that of Shanghai and Shenzhen 500.