Capital account number is a technical term in the stock market, which generally refers to the account number used for buying and selling stocks in the shareholder's capital account. Generally, it consists of 8 digits or less, and the number of investor accounts in each brokerage account is different. Generally printed on the shareholder card. The fund account number is different from the shareholder account number. Shareholder account number refers to the account number on the Shanghai Shareholder Card and the account number on the Shenzhen Shareholder Card. The difference is that the shareholder account card means that you are qualified to buy and sell stocks, and the fund account number means that you have cash to buy stocks.

The main difference between a capital account and a trading account is that a trading account is a securities account established in a registration and settlement institution. It can be used to trade stocks, bonds, funds and other financial assets, and it can also record the changes in the types, names and quantities of securities.

The fund account number is the voucher for logging into the securities trading settlement fund account. When you open an account in a securities company, you have the conditions to buy and sell stocks. Usually, trading funds are first deposited in a bank account, through which investors can obtain funds. The fund account is only used for off-exchange fund transactions, and the securities account can be used for all transactions on the platform and online.

Capital accounts are mainly set up by securities companies for users, which play a role in saving and managing personal funds and stocks. Securities accounts are used to record users' capital and stock transactions, and intermediary companies that provide corresponding services for securities transactions set users to log in to capital accounts for daily transactions.