Market Yield on U.S. Treasury Securities at 20-Year Constant Maturity, Quoted on an Investment Basis, Inflation-Indexed (FII20)

Observations

Jan 2026: 2.36
Updated: Feb 2, 2026 3:17 PM CST
Next Release Date: Feb 5, 2026
Jan 2026:  2.36  
Dec 2025:  2.35  
Nov 2025:  2.27  
Oct 2025:  2.19  
Sep 2025:  2.23  
View All

Units:

Percent,
Not Seasonally Adjusted

Frequency:

Monthly

Fullscreen

Notes

Source: Board of Governors of the Federal Reserve System (US)  

Release: H.15 Selected Interest Rates  

Units:  Percent, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

For further information regarding treasury constant maturity data, please refer to the H.15 Statistical Release notes and the Treasury Yield Curve Methodology.

For questions on the data, please contact the data source. For questions on FRED functionality, please contact us here.

Suggested Citation:

Board of Governors of the Federal Reserve System (US), Market Yield on U.S. Treasury Securities at 20-Year Constant Maturity, Quoted on an Investment Basis, Inflation-Indexed [FII20], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/FII20, .

Release Tables

H.15 Selected Interest Rates

Related Data and Content

Data Suggestions Based On Your Search

Content Suggestions

Other Formats

Annual, Not Seasonally Adjusted Daily, Not Seasonally Adjusted Weekly, Not Seasonally Adjusted

Related Categories

Treasury Inflation-Indexed Securities Treasury Constant Maturity Interest Rates Money, Banking, & Finance

Releases

More Series from H.15 Selected Interest Rates

Tags

20-Year Treasury Inflation-Indexes Securities (TIPS) H.15 Selected Interest Rates Maturity Treasury Securities Interest Rate Interest Real Board of Governors Rate Monthly Nation Public Domain: Citation Requested United States of America Not Seasonally Adjusted

Back to Top

Subscribe to the FRED newsletter

Follow us

 

Need Help?

Questions or Comments
FRED Help
Legal
Privacy Notice & Policy