B indicates the outer disk in red: the number of transactions at the commission price is active buying; S stands for green inner disk: the number of transactions at the entrusted purchase price is active selling; The number at the back indicates the number of transactions you want to make, usually in lots.

We can find out whether there are more active buying or selling through the size and proportion of the number of external and internal disks, and we can often find the trend of bookmakers, which is a relatively effective short-term indicator.

However, when using the outer disk and the inner disk, we should pay attention to the transaction situation of the stock price at the low, medium and high levels and the total turnover of the stock. Because the number of external disk and internal disk is not always effective, many times the external disk is big, and the stock price does not necessarily rise; If the internal market is large, the stock price may not necessarily fall. Therefore, we should use this knowledge flexibly.

In order to improve your experience in stock trading, you can use a simulation disk of Niu Gubao to learn stock knowledge and operation skills, which will help you make profits in the stock market in the future. I wish you a happy investment!