Anti-Money Laundering Certificate Practice Test

Omnibus accounts are master accounts that aggregate the activities of many individual clients under one umbrella, allowing a broker to clear and settle trades for multiple customers efficiently. In this setup, the broker holding the omnibus does not see or disclose the identities of the underlying account holders to that master account, keeping individual client details concealed from the omnibus holder. This arrangement is common when one futures commission merchant (FCM) holds accounts for another FCM or for multiple customers, and all those clients’ transactions are combined in the omnibus master account.

So the description that matches this concept—which focuses on the master account holding for another entity and the consolidation of many customers’ transactions with their identities hidden from the holder—is the best fit. The other options describe single, individually disclosed accounts or non-brokerage account types, which do not capture the aggregated, confidential nature of an omnibus account.