1 has the first capital advantage. The change of stock price depends on the entry of capital, the continuous capital injection of the main force, and the small and medium-sized households follow suit, and the supply exceeds demand immediately.

2 position advantage, the main position is much larger than that of small and medium-sized households, they can knock on the door to make false transactions, resulting in the illusion of changes in supply and demand. Many times, especially retail investors can't judge, some people follow suit and achieve the main intention.

3 professional advantages, needless to say.