Banker generally refers to the investors who affect one stock, and the main force refers to the investors who affect many stocks, and can even influence the market trend.

There are often large orders in the market, and it is easy to regard these orders as the main force, especially when paying the bill. Because it is unlikely that the main force will open a large-scale position now, it is generally believed that the main force will support the market or will soon raise the stock price. In fact, the market itself will also produce a lot of big orders, so the emergence of any big orders can not be simply identified as the main list, not to mention that many stocks themselves do not necessarily have the main force.