1. Nothing practical, just a professional operator.
Even the traders in Shanghai and Shenzhen trading halls have no authority.
3, that is, direct control of funds, but not all, but also the indicators given by the boss, what profit to achieve,
4, that is, there are traders who have complete control over large funds. They are all operating the market and generally master large funds.
Whether there is any development depends on whether you can shoot the fourth film.