Observations

2026-08-21: 2.78

Updated: Aug 24, 2026 3:16 PM CDT

Units:

Percent,

Not Seasonally Adjusted

Frequency:

Weekly,

Ending Friday

Notes

Title	Release Dates

Market Yield on U.S. Treasury Securities at 20-Year Constant Maturity, Quoted on an Investment Basis, Inflation-Indexed	2004-08-02	2026-08-24

Source

Board of Governors of the Federal Reserve System (US)	2004-08-02	2026-08-24

Release

H.15 Selected Interest Rates	2004-08-02	2026-08-24

Units

Percent	2004-08-02	2026-08-24

Frequency

Weekly, Ending Friday	2004-08-02	2026-08-24

Seasonal Adjustment

Not Seasonally Adjusted	2004-08-02	2026-08-24

Notes

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).	2004-08-02	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	2026-08-24

Release Tables

H.15 Selected Interest Rates