First of all, we take the opening time of 10 minute as a grade, calculate the virtual trading volume of the day after counting the trading volume at this stage, and see whether the index or stock price is up or down from the trend of 10 minute, and get the general running trend of the day;

Secondly, we will count the changes of virtual trading volume half an hour after the opening, and combine the running trend of stock index or stock price to further judge the running direction of stock index on that day;

Thirdly, let's count the virtual trading volume of 1 hour, and judge the running trend of the day by combining the stock index or stock price of 1 hour, and make reasonable operations according to the change of trading volume;

Finally, it is very important to observe the changes of the big orders and big selling orders of the underlying stocks, whether they are withdrawn or absorbed and digested.

Disadvantages: the biggest disadvantage of operating according to virtual trading volume is that the stock index or stock price suddenly dives or rises due to uncertain factors, which makes the operation of the day in a passive situation.

Remember: technology is not everything, and nothing can be done without technology. Think about the meaning behind this sentence.