We’re celebrating our 400th FRED Blog post by writing about the certificate of deposit—which is abbreviated as CD, which is also Roman for 400.

A CD is a savings vehicle that allows anyone to earn a little more interest than regular savings accounts provide. And the longer you commit your savings to a CD, the more interest you get. The Federal Deposit Insurance Company—which is abbreviated as FDIC, which is also Roman for F599—collects information about CDs in all its member banks and averages them in two categories: jumbo (over $100,000) and non-jumbo. This graph shows all the non-jumbo maturities listed in FRED. By the way, jumbo CDs offer a slightly higher return, which you can see if you create another graph.

How this graph was created: Search for “CD rate,” check the series you want, and click “Add to Graph.” From the “Edit Graph” panel, open the “Format” panel and change the order of the lines to sort them by maturity (this process may take some time).

Suggested by Christian Zimmermann.