Observations

2026-05-28: 3.78154

Updated: May 29, 2026 11:14 AM CDT

Units:

Percent,

Not Seasonally Adjusted

Frequency:

Daily

Notes

Title	Release Dates

AMERIBOR Term-30 Derived Interest Rate Index	2022-04-19	2026-05-29

Source

American Financial Exchange	2022-04-19	2026-05-29

Release

Historical Overnight AMERIBOR Unsecured Interest Rate	2022-04-19	2026-05-29

Units

Percent	2022-04-19	2026-05-29

Frequency

Daily, 7-Day	2022-04-19	2025-08-18
Daily	2025-08-19	2026-05-29

Seasonal Adjustment

Not Seasonally Adjusted	2022-04-19	2026-05-29

Notes

AMERIBOR® (American Interbank Offered Rate) is a benchmark interest rate based on overnight unsecured loans transacted on the American Financial Exchange (AFX). AMERIBOR® is calculated as the transaction volume weighted average interest rate of the daily transactions in the AMERIBOR® overnight unsecured loan market on the AFX. AMERIBOR® Term-30 Index is a forward-looking interest rate designed to capture wholesale funding costs for American financial institutions over a thirty-day period at a specific moment in time. This index is calculated using AMERIBOR (https://fred.stlouisfed.org/series/AMERIBOR) as well as a broad dataset of real-world primary issuances of wholesale commercial deposits and commercial paper of U.S.-domiciled financial institutions of every size. More details about AMERIBOR® methodology can be found on the source's website (https://ameribor.net/), under the Resources section. AMERIBOR® is a registered trademark of the American Financial Exchange (AFX). © Copyright, American Financial Exchange (AFX). All Rights Reserved.	2022-04-19	2026-05-29

Release Tables

Historical Overnight AMERIBOR Unsecured Interest Rate