SEC Rule 18a-5(a)(9)

This rule applies to security-based swap dealers and major security-based swap participants registered under the act for whom there is no prudential regulator.

It mandates that these firms maintain a record of proof of money balances for all ledger accounts in the form of trial balances.

Additionally, they must keep a record of the computation of net capital or tangible net worth, as applicable, as of the trial balance date.

These trial balances and computations must be prepared and updated at least once per month to ensure that they reflect current and accurate financial information.