the securities trading settlement funds refer to the RMB trading settlement funds obtained by the "securities market trading settlement funds monitoring system" for all brokerage clients of securities companies with brokerage business (including some asset management plans with securities company settlement mode) to engage in securities trading, excluding the funds of investors engaged in B-share trading, margin financing and securities lending business, and excluding the funds engaged in securities trading such as self-operated securities companies, QFII, asset management plans of securities companies with custodian settlement mode and publicly offered securities investment funds.