30-Year 0.875% Treasury Inflation-Indexed Bond, Due 2/15/2047
DTP30F47 • Economic Data from Federal Reserve Economic Data (FRED)
Latest Value
2.54
Year-over-Year Change
-0.78%
Date Range
10/8/2021 - 8/7/2025
Summary
The 30-Year Treasury Inflation-Indexed Bond represents a long-term government security designed to protect investors against inflation by adjusting principal based on changes in the Consumer Price Index. This financial instrument provides critical insights into market expectations of future inflation and real interest rates.
Analysis & Context
This economic indicator provides valuable insights into current market conditions and economic trends. The data is updated regularly by the Federal Reserve and represents one of the most reliable sources for economic analysis.
Understanding this metric helps economists, policymakers, and investors make informed decisions about economic conditions and future trends. The interactive chart above allows you to explore historical patterns and identify key trends over time.
About This Dataset
Treasury Inflation-Protected Securities (TIPS) are government bonds that provide a hedge against inflation by linking their principal value to the Consumer Price Index. Economists and investors closely analyze these securities to understand market-implied inflation expectations and real economic growth potential.
Methodology
The bond's principal is adjusted quarterly based on the Consumer Price Index for All Urban Consumers (CPI-U), with interest payments calculated on the inflation-adjusted principal.
Historical Context
These securities are used by policymakers, investors, and economists to gauge long-term inflation expectations and assess the real economic outlook.
Key Facts
- Provides protection against inflation by adjusting principal value
- Offers insight into long-term market inflation expectations
- Part of the Treasury Inflation-Protected Securities (TIPS) program
FAQs
Q: How do Treasury Inflation-Protected Securities work?
A: TIPS adjust their principal value based on inflation, ensuring that the investment maintains its purchasing power over time. Interest payments are calculated on the inflation-adjusted principal.
Q: Why are TIPS important for investors?
A: TIPS provide a hedge against inflation, protecting investors from the erosion of purchasing power during periods of rising prices. They offer a way to preserve real investment value.
Q: How is the inflation adjustment calculated?
A: The principal is adjusted quarterly using the Consumer Price Index for All Urban Consumers (CPI-U), with increases or decreases reflected in the bond's value.
Q: What makes this 30-year TIPS unique?
A: This specific bond offers a long-term investment horizon with built-in inflation protection, making it attractive for investors seeking stable, inflation-adjusted returns.
Q: How often is the TIPS data updated?
A: The data is typically updated quarterly, coinciding with the CPI-U adjustments and reflecting the most recent inflation measurements.
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Citation
U.S. Federal Reserve, 30-Year 0.875% Treasury Inflation-Indexed Bond, Due 2/15/2047 [DTP30F47], retrieved from FRED.
Last Checked: 8/1/2025