Federal Reserve Economic Data

AMERIBOR Term-90 Derived Interest Rate Index (AMBOR90T)

2025-12-25: 3.86449
Updated: Dec 26, 2025 7:02 AM CST
2025-12-25:  3.86449  
2025-12-24:  3.86449  
2025-12-23:  3.86959  
2025-12-22:  3.87227  
2025-12-19:  3.88391  
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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-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, 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-90 Derived Interest Rate Index [AMBOR90T], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/AMBOR90T, .

Release Tables

Historical Overnight AMERIBOR Unsecured Interest Rate

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