An omnibus account is a type of financial account that allows multiple customers to pool their investments and have them overseen by a single broker, manager or investment firm. The purpose of an omnibus account is to simplify the process of managing trades and investments for multiple customers simultaneously. It is used by financial firms, such as banks and hedge funds, to manage their customers’ portfolios as a single entity.

A key feature of an omnibus account is that it allows investors to maintain their anonymity. The accounts are also beneficial for the broker because it reduces their administrative workload by managing all their customers’ investments from one point. In addition, an omnibus account can provide an incentive for the broker to succeed in managing their customers’ investments, as the manager's compensation is often tied to the performance of the account.

Another beneficial element of an omnibus account is its ability to facilitate rapid transactions. When the markets require urgent action, the manager of the omnibus account can act swiftly to complete trades on behalf of his or her clients.

For investors, an omnibus account makes it possible to consolidate multiple investments into a single account. This feature helps to simplify the process of monitoring and managing their investments, as they are all handled by one broker. Additionally, the anonymity offered by an omnibus account gives those investors who value their privacy the ability to maintain that privacy.

An omnibus account offers a range of potential benefits to both brokers and investors, which can help to simplify the process of trading and investing. It allows for managed trades for multiple parties with the added benefit of anonymity for the customers, and helps to expedite transactions when required. The account also provides an incentive for the broker to succeed with the account, and is beneficial for investors who want to consolidate their investments into one account and gain the privacy associated with an omnibus account.