Yes, but if it is an account in the name of a person, there can only be one transaction code according to the regulations of the exchange. Even if you open an account with another brokerage company, your actual position will be added to your trading code ... of course, it doesn't mean much to ordinary investors. If your position is large, it is necessary to know this. The exchange implements a position restriction system for people who hold large positions ... you can open it in someone else's name. ..