1 There is no price limit. The mainland stock market is limited to 10%, and Hong Kong stocks are not limited.

2. Hong Kong stocks are subject to the T+0 trading system, that is, stocks can be sold on the day they are bought; The mainland stock market implements T+ 1 trading, that is, the stocks bought on the same day must be sold on the next day.

3. There are many stock market derivatives in Hong Kong stock market, such as stock index futures, derivative warrants, equity warrants, bull-bear certificates, stock-linked bills, etc., while there are almost no other trading varieties in mainland stock markets except stock index futures.