30-Year 3-5/8% Treasury Inflation-Indexed Bond, Due 4/15/2028
DTP30A28 • Economic Data from Federal Reserve Economic Data (FRED)
Latest Value
1.15
Year-over-Year Change
0.00%
Date Range
10/8/2021 - 8/7/2025
Summary
The 30-Year 3-5/8% Treasury Inflation-Indexed Bond represents a critical financial instrument that provides investors with protection against inflation through adjustable principal values. This bond type is essential for understanding long-term investment strategies and inflation expectations in the U.S. financial markets.
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 designed to preserve purchasing power by adjusting the principal based on changes in the Consumer Price Index. Economists and investors closely monitor these securities as indicators of market-implied inflation expectations and real interest rates.
Methodology
The bond's value is calculated by the U.S. Treasury, with principal amounts adjusted quarterly according to the Consumer Price Index for All Urban Consumers (CPI-U).
Historical Context
These bonds are used by policymakers, investors, and financial analysts to gauge long-term inflation expectations and develop macroeconomic forecasting models.
Key Facts
- Provides protection against inflation through principal adjustments
- Offers a fixed interest rate on the adjusted principal
- Considered a low-risk investment backed by the U.S. government
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. When inflation rises, the principal increases; when deflation occurs, the principal decreases.
Q: Why are TIPS important for investors?
A: TIPS provide a hedge against inflation, protecting investors from the erosion of purchasing power over time. They offer a way to preserve real investment value in changing economic conditions.
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 the interest rate applied to the adjusted principal.
Q: What makes this specific bond unique?
A: This 30-year 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 this data updated?
A: The bond's data is typically updated quarterly, coinciding with the CPI-U adjustments and Treasury reporting cycles.
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Citation
U.S. Federal Reserve, 30-Year 3-5/8% Treasury Inflation-Indexed Bond, Due 4/15/2028 [DTP30A28], retrieved from FRED.
Last Checked: 8/1/2025