Not the same.
The securities capital account is a number at the securities company, and the bank account is a number at the bank. The two are different systems and are definitely different. However, securities company accounts can be bound to bank accounts, and funds can be transferred in and out through bank cards.
Securities are a general term for a variety of economic rights and interests certificates, and also refer to specialized types of products. They are legal certificates used to prove certain specific rights and interests enjoyed by the ticket holder. Securities mainly include capital securities, currency securities and commodity securities. Securities in a narrow sense mainly refer to securities products in the securities market, including equity market products such as stocks, debt market products such as bonds, and derivative market products such as stock futures, options, interest rate futures, etc. Securities are essentially civil rights with property attributes. The characteristic of securities is that civil rights are embodied in securities, so that rights are combined with securities. Rights are embodied in securities, which is the securitization of rights. It is a legal phenomenon in which the right holder exercises his rights in the form of securities, a social phenomenon that symbolizes the investor's investment property, and a sign and result of developed social credit.