Assets Under Custody or Administration (often shortened to AUC/A) refers to the total market value of all financial assets that a bank or other financial institution holds on behalf of its clients. Think of it as the grand total of everything a company is looking after for others, without necessarily making investment decisions about it. This is a crucial distinction from the more famous Assets Under Management (AUM), which implies that the institution has discretionary authority to buy and sell assets for the client. With AUC/A, the institution's role is primarily safekeeping (custody) and/or handling the paperwork and processing (administration). Imagine a high-security garage for a classic car collection. The garage owner (the custodian) protects your cars, but you or your appointed expert tells them which cars to buy, sell, or take for a spin. The total value of all the cars in that garage would be its “Assets Under Custody.”
At first glance, AUC/A seems like a metric for analysts judging the size and health of a bank like BNY Mellon or State Street. A bigger number generally means more clients trust the institution, leading to more fee revenue and greater market share. However, for an ordinary investor, this metric offers some practical insights into choosing where to house your investments.
While often lumped together, “Custody” and “Administration” are two distinct, though related, services. Most large providers offer both.
This is the most basic function. The custodian's job is simply to hold your securities (like stocks and bonds) for safekeeping in a segregated account. This separation is legally important, as it protects your assets from the custodian's creditors if the firm itself runs into financial trouble. Core custody services include:
Administration includes all custody services and adds several layers of record-keeping and processing on top. It's the “back-office” work that makes managing a portfolio possible. Key administration services include:
A true value investor looks for quality at a reasonable price, and this applies to financial services just as it does to stocks. The AUC/A figure is a useful screening tool, but it's not the final word. When choosing a broker or custodian, use AUC/A as a starting point to identify the large, established players. Then, dig deeper:
Ultimately, a high AUC/A points you to the big leagues. It's up to you to use a value investor's diligence to find the all-star player within that league who will protect and service your portfolio at the lowest possible cost.