As far as the current laws and regulations are concerned, there seems to be no prohibitive norm. So, it is possible in theory. Securities accounts must be closed. Even if it doesn't matter, the accounts of all employees (no matter which securities company they open, including immediate family members, parents, wives and children) will be sent out every time the company is inspected. The company will inform you to close the account within a time limit. There is nothing wrong with securities practitioners opening futures accounts.

There are laws that prohibit futures practitioners from speculating in futures and securities practitioners from speculating in stocks. The original intention is to prevent practitioners from using information asymmetry to affect the fairness of transactions. From this perspective, futures and stocks are related to some extent. For example, stock index futures are directly related to stocks.

If futures and securities are allowed to cross-operate, this will violate the original intention of the above legislation. There is no such legal provision at present. I don't think the legislature is aware of this problem, and no one has seriously violated the law on this issue.