In principle, China citizens are not allowed to open overseas accounts at present. You can find some intermediaries. There are many scammers on the Internet. It is not recommended to open things in Britain, Germany and Japan. Most of them are liars.
If you have an agency in the United States at present, you can go to Standard Chartered Bank for consultation, because you need to exchange foreign currency.
A position is only the proportion of funds held in your account. Generally speaking, more than 70% are heavy positions and less than 30% are light p