TIPS (Treasury Inflation-Protected Securities)

What Are TIPS?

Treasury Inflation-Protected Securities (TIPS) are US Treasury bonds whose principal value adjusts daily with the Consumer Price Index (CPI-U, not seasonally adjusted). The Treasury issues TIPS in 5-year, 10-year, and 30-year tenors. They pay a fixed real coupon rate; the dollar coupon payment varies because the principal (and therefore the coupon base) adjusts with inflation.

At maturity, the investor receives the inflation-adjusted principal value. If deflation has occurred, the investor receives no less than the original face value (this floor is a unique TIPS protection). Coupons are paid semi-annually.

FRED tickers include DFII5 (5-year), DFII10 (10-year), and DFII30 (30-year) for constant-maturity real yields.

Why TIPS Matter

TIPS yields are the real interest rate component of nominal Treasury yields. They isolate the compensation for time preference and risk-free duration risk, stripping out the expected inflation that drives nominal yields. This makes them critical for:

• Inflation expectations analysis: Nominal yield minus TIPS yield equals breakeven inflation, the market's implied expected average inflation.
• Asset valuation: Real yields anchor equity multiples, gold prices, and many other asset classes. The 10-year TIPS yield is among the most-watched variables in macro analysis.
• Inflation hedging: TIPS provide direct inflation protection for nominal portfolios, used by pension funds, insurers, and individual investors.
• Monetary policy analysis: Fed officials reference TIPS yields when assessing real-rate conditions vs r-star.

How to Read TIPS Yields

Real yield level. The 10-year TIPS yield averaged approximately 0% from 2010-2021 and turned negative briefly during 2020. The 2022-2023 cycle drove it to 2.5%+ in October 2023, the highest since 2008. The level signals real-rate conditions: high positive yields are restrictive; near zero is neutral; negative is accommodative.

Real yield vs r-star. Comparing the 10-year TIPS to estimated r-star (~1.0% in late 2024) reveals the structural policy stance.

TIPS-nominal spread (breakeven inflation). The cleanest market measure of inflation expectations. The 10-year breakeven has averaged approximately 2.0% since 2003.

5y5y forward breakeven. The implied 5-year average inflation starting 5 years from now, derived from 5-year and 10-year breakevens. The Fed cites this as a measure of long-run inflation expectation anchoring.

Historical Context

TIPS were first issued by the Treasury in January 1997. Through 2010-2021, real yields averaged approximately 0%, reflecting the post-GFC zero-interest-rate environment. The 2020 COVID liquidity event briefly drove real yields below -1%. The 2022-2023 hiking cycle drove 10-year real yields from -1.0% to +2.5%, an extraordinary 350 bp move.

Through 2024-2025, real yields have run in the 1.7-2.2% range — well above the 2010s norm but below the October 2023 peak. The persistence of positive real yields has been a defining feature of the cycle and a key support for the gold rally (which has held up despite the textbook real-yield headwind).