2. If you want to open a long position, you don't have to wait for a completely corresponding short position, or it may be a long position. You should know that the buying situation is: long and short; Selling situations include: short positions and long positions. As long as the business matches. In addition, there is no need to worry about not being able to close the deal. Taking Shanghai Rubber as an example, the daily turnover exceeds 1 10,000 lots, and there are 500,000 lots in long and short positions, which are evenly shared within less than 4 hours (2 15 minutes), with about 78 lots per second, that is, 39 lots in short and long positions. Enough for you to make a deal.