What is a custodian bank?

Learn what a custodian bank is.


A custodian bank is a financial institution that is responsible for the safekeeping of assets, including stocks and shares. They are often known simply as ‘custodians.’

Keeping someone’s stocks safe may sound straightforward but it comes with a whole host of responsibilities.

Custodians will usually be responsible for handling all the bureaucracy that comes with buying and selling stocks. That includes any tax issues, dividend payments or foreign exchange transactions that need to be carried out.

It’s worth noting that a custodian is largely concerned with the mechanics of investing. So if you store cash with a custodian, it’s not like holding a regular bank account that would let you go to an ATM and withdraw money.

In fact, custodial services are distinct from regular banking services. Though there are banks that offer a range of services, their custodial operations will be separate from any consumer or commercial banking services, such as lending or operating bank branches.

More terms

Ponzi Scheme

A form of fraud designed to lure new investors, and pays the earlier backers by using the new investors' money.
Read more

Dirty price

The total price payable on the purchase of a gilt. It’s calculated as the clean price plus accrued interest.
Read more

Clean price

The quoted price of a gilt, which excludes accrued interest
Read more

Hypothesis Testing

A mathematical test used to determine whether a claim is true or false.
Read more

Money weighted rate of return

Learn what Money Weighted Rate of Return or MWRR stands for in finance.
Read more

Fundamentals

The data or information that is likely to impact a company's stock price.
Read more

Xetra

A trading venue operated by the Frankfurt Stock Exchange.
Read more

Beta

Learn what Beta stands for in finance.
Read more

S&P 500

Find out what is the definition of the S&P 500 index.
Read more

You’re just minutes away from commission-free investing

When you invest, your capital is at risk