It is not easy to predict in advance, and whoever comes first is accidental. But there is a strong positive correlation between the two, that is, similarity, and * * * is greater than personality.

So the index tends to converge in the short and medium term, and the difference is less than * * *. If you buy index funds, it's all the same.

However, from the long-term historical record, GEM is the best, followed by Shenzhen Stock Exchange and Shanghai Stock Exchange.

This is history, and whether it has always been like this requires future historical proof.

If we refer to other markets, the more stocks that make up the index, the worse the performance of the index. In recent decades, the high-tech stock index has been better than other stock indexes.

If you choose a stock, don't care too much about which index and which sector he is in. Often at a certain stage, stocks are more important than * * *, and you can dig them yourself.