Custody arrangements: who actually holds your securities
An investor who holds shares through a brokerage account does not actually possess the share certificates. The shares sit at a custodian—typically a large bank—and the investor's ownership is recorded on the custodian's books in the broker's name, with the broker holding records that attribute the underlying ownership to the specific investor. The chain of relationships is the custody arrangement, and it has direct consequences for the safety and recoverability of the investor's assets.
What custody is
Custody is the safekeeping of securities on behalf of their beneficial owner. In modern markets, the actual share certificates are held in a centralised securities depositary—DTC (Depository Trust Company) in the US, Euroclear in Europe, JASDEC in Japan, SIX SIS in Switzerland—and the depositary records ownership in the name of the participant institutions (banks, brokers, custodian banks) that hold accounts at the depositary.
The investor's ownership flows down through the chain: the depositary records the participant institution's ownership; the participant records the broker's ownership; the broker records the individual investor's ownership. The investor is the beneficial owner—entitled to all the economic benefits of the security (dividends, voting rights, capital appreciation)—even though the registered owner at the depositary is the participant institution, not the individual investor.
The arrangement is called "street name" ownership in US terminology and is the default for nearly all retail brokerage accounts. The alternative—direct registration in the investor's own name—exists but is operationally cumbersome and is rarely used for actively-traded positions.
How it works
For a typical retail investor, the custody chain is invisible. The investor opens a brokerage account, transfers cash, buys securities, and sees the holdings in their account statement. The broker handles all the depositary-level recordkeeping; the investor never interacts with the depositary directly.
The broker may use itself as the custodian (self-custody), or may use a separate custodian bank for the underlying securities. Larger brokers (Schwab, Fidelity, Vanguard, Interactive Brokers) typically self-custody for cost and operational efficiency. Smaller brokers often use a third-party custodian—Pershing, Apex Clearing, BNY Mellon—that provides the back-office infrastructure as a service.
The distinction between broker and custodian matters in failure scenarios. If the broker fails, the customer's securities are held at the custodian and are typically recoverable; the customer transfers the securities to a different broker. If the custodian fails, the recovery picture is more complex and depends on the specific custody arrangement and the resolution framework that applies.
Investor protection schemes provide additional backstop. SIPC (Securities Investor Protection Corporation) in the US covers up to USD 500,000 per customer in case of broker failure. Equivalent schemes exist in other jurisdictions: FSCS (UK) up to GBP 85,000, esisuisse (Switzerland) up to CHF 100,000 for cash deposits, and similar limits elsewhere. The schemes cover failures of the broker but typically do not cover investment losses.
What the evidence shows
The vast majority of brokerage and custody arrangements function reliably without incident. The post-2008 regulatory framework strengthened both broker capital requirements and the segregation of customer assets from firm assets, reducing the probability that customer holdings would be at risk in a broker failure. The major US broker failures in recent decades (MF Global in 2011, the 2023 collapse of Silicon Valley Bank affecting brokered cash deposits) all produced eventual recovery for retail customers, often with limited time disruption.
The major failure modes are not the catastrophic broker collapse but the operational mistakes that produce specific account-level problems. Lost dividend payments, unprocessed corporate actions, missed proxy votes, and incorrect cost-basis records are all common operational failures at the custody level and are typically resolved through the broker's customer service rather than through the investor protection scheme.
For non-traditional assets, the custody picture is more complex. Cryptocurrency custody requires either self-custody (the investor holds the private keys) or institutional custody (a regulated custodian holds the keys on the investor's behalf); the choice has security and convenience trade-offs that are different from those of traditional securities. Private investments—private equity, private credit, direct real estate—often lack the standardised custody infrastructure that public securities enjoy and require investor-specific arrangements.
Limitations and trade-offs
Street-name ownership comes with the trade-off that the investor's relationship is with the broker, not with the company whose shares they own. Direct corporate communications, proxy materials, and dividend payments flow through the broker, which can introduce delays and the occasional missed item. For investors who want a direct relationship with the company (for governance reasons, or because they want to attend annual meetings), direct registration is the alternative.
Investor protection scheme limits matter for investors with concentrated holdings at a single broker. An investor with USD 1 million at a US broker has SIPC coverage on the first USD 500,000; the remaining USD 500,000 is exposed to a broker failure that exceeds the broker's own capital and the SIPC fund. Investors with concentrated holdings should consider distributing across multiple brokers to stay within the protection limits.
For cross-border holdings, the custody chain crosses jurisdictional boundaries and the investor protection scheme that applies depends on the specific arrangement. A US investor who holds non-US securities through a US broker is typically still covered by SIPC; the same investor holding through a foreign broker may be covered by the foreign jurisdiction's scheme rather than SIPC. The specifics matter and are worth checking for any non-trivial international position.
Custody in pfolio
pfolio is broker- and custody-agnostic. The platform's analytics, portfolio construction, and rebalancing tools work alongside whichever custodian an investor uses; pfolio does not hold securities or cash. The choice of custody arrangement is a separate decision from the choice to use pfolio.
Related articles
Disclaimer
Get started now
