Margin Statistics
Pursuant to FINRA Rule 4521, FINRA member firms carrying margin accounts for customers are required to submit, on a settlement date basis, as of the last business day of the month, the total of all debit balances in securities margin accounts; and the total of all free credit balances in all cash accounts and all securities margin accounts. FINRA collects the required data via FINRA’s Customer Margin Balance Form. The data is compiled in aggregate form and made available below.