Volume is the number of transactions between long and short parties. As long as there is a deal, there will be a deal. Open position refers to the number of open positions between long and short traders. Only when you open a position can you open a position. When there is no open contract between long and short parties after a trading cycle, the position is zero. For example, on a certain day (hours, minutes), the position before trading starts is 654.38+0,000 lots. After the transaction started, many parties sold 5000 lots, closed 5000 lots, and changed their positions; When short sellers buy 5000 lots and close 5000 short positions, their positions also become zero. At this time, the volume is 10000 lots, but the position is zero. Interested parties can visit my blog: /muyver.