1-Year Treasury Constant Maturity Minus Federal Funds Rate (T1YFF)

Observations

2026-09-30: 0.66
Updated: Oct 1, 2026 4:03 PM CDT
Next Release Date: Oct 2, 2026
2026-09-30:  0.66  
2026-09-29:  0.70  
2026-09-28:  0.71  
2026-09-25:  0.62  
2026-09-24:  0.63  
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Units:

Percent,
Not Seasonally Adjusted

Frequency:

Daily

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Notes

Source: Federal Reserve Bank of St. Louis  

Release: Interest Rate Spreads

Units:  Percent, Not Seasonally Adjusted

Frequency:  Daily

Notes:

Series is calculated as the spread between 1-Year Treasury Constant Maturity (BC_1YEAR) and Effective Federal Funds Rate (https://fred.stlouisfed.org/series/DFF).
Starting with the update on June 21, 2019, the Treasury bond data used in calculating interest rate spreads is obtained directly from the U.S. Treasury Department.

Suggested Citation:

Federal Reserve Bank of St. Louis, 1-Year Treasury Constant Maturity Minus Federal Funds Rate [T1YFF], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/T1YFF, .

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Monthly, Not Seasonally Adjusted

Related Categories

Interest Rate Spreads Interest Rates Money, Banking, & Finance

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More Series from Interest Rate Spreads

Tags

Yield Curve 1-Year Spread Maturity Federal Treasury Interest Rate St. Louis Fed Interest Daily Rate Copyrighted: Citation Required Nation United States of America Not Seasonally Adjusted

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