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Market Yield on U.S. Treasury Securities at 1-Month Constant Maturity, Quoted on an Investment Basis (DGS1MO)

Observations

2026-05-19: 3.66
Updated: May 20, 2026 3:16 PM CDT
2026-05-19:  3.66  
2026-05-18:  3.69  
2026-05-15:  3.71  
2026-05-14:  3.72  
2026-05-13:  3.71  

Units:

Percent,
Not Seasonally Adjusted

Frequency:

Daily

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Notes

Title Release Dates
1-Month Treasury Constant Maturity Rate 2005-06-28 2019-06-30
Market Yield on U.S. Treasury Securities at 1-Month Constant Maturity, Quoted on an Investment Basis 2019-07-01 2026-05-20
 
Source    
Board of Governors of the Federal Reserve System (US) 2005-06-28 2026-05-20
 
Release    
H.15 Selected Interest Rates 2005-06-28 2026-05-20
 
Units    
Percent 2005-06-28 2026-05-20
 
Frequency    
Daily 2005-06-28 2026-05-20
 
Seasonal Adjustment    
Not Seasonally Adjusted 2005-06-28 2026-05-20
 
Notes    
For further information regarding treasury constant maturity data, please refer to http://www.federalreserve.gov/releases/h15/current/h15.pdf and http://www.treasury.gov/resource-center/data-chart-center/interest-rates/Pages/yieldmethod.aspx.

2005-06-28 2019-06-30
For further information regarding treasury constant maturity data, please refer to the H.15 Statistical Release notes (https://www.federalreserve.gov/releases/h15/default.htm) and the Treasury Yield Curve Methodology (https://home.treasury.gov/policy-issues/financing-the-government/interest-rate-statistics/treasury-yield-curve-methodology).

2019-07-01 2025-01-06
H.15 Statistical Release notes (https://www.federalreserve.gov/releases/h15/default.htm) and the Treasury Yield Curve Methodology (https://home.treasury.gov/policy-issues/financing-the-government/interest-rate-statistics/treasury-yield-curve-methodology).

For questions on the data, please contact the data source (https://www.federalreserve.gov/apps/ContactUs/feedback.aspx?refurl=/releases/h15/%). For questions on FRED functionality, please contact us here (https://fred.stlouisfed.org/contactus/).

2025-01-07 2026-05-20

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H.15 Selected Interest Rates

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1-Month Bills H.15 Selected Interest Rates Maturity Treasury Interest Rate Interest Daily Board of Governors Rate Nation Public Domain: Citation Requested United States of America Not Seasonally Adjusted