AMERIBOR Term-30 Derived Interest Rate Index (AMBOR30T)

2026-09-18: 3.99515
Updated: Sep 21, 2026 7:03 AM CDT
2026-09-18:  3.99515  
2026-09-17:  3.93038  
2026-09-16:  3.86618  
2026-09-15:  3.82346  
2026-09-14:  3.79298  
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Units:

Percent,
Not Seasonally Adjusted

Frequency:

Daily

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Notes

Source: American Financial Exchange  

Release: Historical Overnight AMERIBOR Unsecured Interest Rate  

Units:  Percent, Not Seasonally Adjusted

Frequency:  Daily

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 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, under the Resources section.

AMERIBOR® is a registered trademark of the American Financial Exchange (AFX). © Copyright, American Financial Exchange (AFX). All Rights Reserved.

Suggested Citation:

American Financial Exchange, AMERIBOR Term-30 Derived Interest Rate Index [AMBOR30T], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/AMBOR30T, .

Release Tables

Historical Overnight AMERIBOR Unsecured Interest Rate

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