Before opening a stock account, the applicant may need to provide relevant materials on the flow of funds. Capital flow refers to the record of capital flow of account holders in capital transactions in banks or securities companies.

The purpose of providing fund flow is to verify the source of funds and transaction records of the applicant, so as to ensure the compliance and legal compliance of the transaction. By looking at the flow of funds, you can know the applicant's historical investment, transaction frequency, transaction scale and other information. This is helpful for regulators to evaluate the applicant's risk level and his trading behavior in the securities market.

Capital flow generally includes the following contents:

1. Amount and date of capital inflow and outflow.

2 fund product name, share, time and amount of purchase or redemption.

3. Account information and counterparty information of fund transactions (such as fund companies or custodian banks, etc.). ).

4. Fund transaction confirmation or transaction serial number and other related transaction documents.

Please note that the specific requirements may vary according to the securities laws and regulations of countries or regions. Before opening a stock account, it is recommended to consult the regulations of the relevant securities brokerage company or exchange to understand the required preparation documents and materials.