1, generally refers to the use of computer trading system, fast and frequent intra-day ultra-short-term position trading;

2. This kind of transaction is characterized by moderate positions, taking advantage of the characteristics of order flow to grab very few profit points in a short period of time, and then making profits repeatedly. The focus is on the frequency of operation, not the size of profit;

3. It is the trading method of general institutional traders, and ordinary people should not try it easily. Institutional transactions are relatively safe, because it has a large amount of funds. The longer it holds future positions, the higher the risk and the harder it is to grasp.