Observations

2026-09-21: 4.13195

Updated: Sep 22, 2026 7:02 AM CDT

Units:

Percent,

Not Seasonally Adjusted

Frequency:

Daily

Notes

Title	Release Dates

AMERIBOR Term-90 Derived Interest Rate Index	2022-04-19	2026-09-22

Source

American Financial Exchange	2022-04-19	2026-09-22

Release

Historical Overnight AMERIBOR Unsecured Interest Rate	2022-04-19	2026-09-22

Units

Percent	2022-04-19	2026-09-22

Frequency

Daily, 7-Day	2022-04-19	2025-08-18
Daily	2025-08-19	2026-09-22

Seasonal Adjustment

Not Seasonally Adjusted	2022-04-19	2026-09-22

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-90 Index is a forward-looking interest rate designed to capture wholesale funding costs for American financial institutions over a ninety-day period at a specific moment in time. This index is calculated using 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	2026-09-22

Release Tables

Historical Overnight AMERIBOR Unsecured Interest Rate