Fixed Income · 6 min read · 2026-02-15
The 9-variable TIPS decision.
TIPS are sold as inflation insurance. The actual decision is more subtle than 'buy when inflation rises.'
TIPS won 2021–2022 and lost 2023–2024.
TIPS produced 12% positive returns in 2021's inflation surge and 12% negative returns in 2022's rate spike. The asset class is more volatile than its 'inflation-protected' label suggests. The decision framework distinguishes when TIPS belong in the portfolio.
The nine indicators
The nine variables of TIPS allocation.
Each is observable in market data or household-specific. The composite produces a TIPS allocation aligned with actual inflation exposure, not headline coverage.
Breakeven inflation rate
Threshold: own historical band
Breakeven (TIPS yield minus nominal yield) prices implied future inflation. Compare to expected actual inflation.
Real yield level
Threshold: > 1.5% favors TIPS
Real yields above 1.5% provide attractive real return. Below that, the asset class is less compelling.
5y5y forward inflation expectation
Source: FRED
Long-term inflation expectations. Persistent above 2.5% favors TIPS overweight.
Retirement horizon and inflation exposure
Pattern: long horizon = more TIPS
Long-horizon retirees have more cumulative inflation exposure. TIPS hedge real-purchasing-power risk.
Personal CPI vs official CPI
Pattern: medical, education divergence
TIPS index to CPI-U. Personal inflation rates (heavily weighted to medical, education) often differ. The hedge may be partial.
Tax location — taxable account caveats
Pattern: phantom income
TIPS in taxable accounts produce phantom income on the inflation accrual. Tax-advantaged placement is strongly preferred.
Duration profile of TIPS holdings
Pattern: short vs long
Short TIPS (1-5 years) are less rate-sensitive. Long TIPS (10-30 years) carry significant duration. Match to investment horizon.
I Bond and other inflation-linked alternatives
Pattern: complementary
I Bonds offer different inflation protection (lower volatility, contribution caps). Hybrid I Bond + TIPS portfolios can be efficient.
Gold and commodity overlap
Pattern: partial substitution
Gold and broad commodities provide partial inflation protection. TIPS allocation should account for existing inflation hedges.
What TIPS actually do
Treasury Inflation-Protected Securities pay a real yield plus indexation to CPI-U. The principal adjusts upward with inflation; the coupon is paid on the adjusted principal. Holders earn the real yield (locked in at purchase) plus realized inflation. In low-inflation regimes, TIPS underperform nominals (lower real yield); in high-inflation regimes, they outperform.
The mechanism is direct but the volatility is real. TIPS prices move with both real yields and inflation expectations. A 1 percentage point change in real yields can produce 8–15% TIPS price moves, regardless of realized inflation. The asset is not low-volatility despite the 'protection' label.
Breakeven as the entry signal
Breakeven inflation (nominal Treasury yield minus TIPS yield) is the market's implied future inflation. When breakevens are below expected actual inflation, TIPS are cheap; when above, expensive. The signal is symmetric.
The 2021–2023 inflation cycle produced significant breakeven volatility. Breakevens that were 1.5% in early 2020 reached 3% by 2022 and compressed back to 2.3% by 2024. Buying TIPS when breakevens were low (early 2020) produced strong returns; buying when breakevens were elevated (2022) produced weaker outcomes.
The phantom income problem
TIPS held in taxable accounts produce 'phantom income' — the inflation accrual to principal is taxable annually as ordinary income, even though the holder doesn't receive the cash until maturity or sale. In high-inflation regimes, the phantom income tax can exceed the actual cash coupon, producing net negative cash flow.
The remediation is simple: hold TIPS in tax-advantaged accounts (IRA, 401k, Roth). The phantom income inside these accounts is not taxable. For most retail, TIPS exposure should be concentrated in tax-advantaged wrappers.
I Bonds vs TIPS
Series I Bonds and TIPS both provide inflation protection but with different mechanics. I Bonds have a 1-year minimum holding period, $10K annual cap, and zero secondary market — they are illiquid but lower-volatility. TIPS trade in liquid secondary markets but carry interest-rate volatility.
For households below the I Bond contribution cap, I Bonds capture the inflation hedge with less volatility. Above the cap, or for tactical positioning, TIPS provide scalable exposure. Many households benefit from both — I Bonds as foundation, TIPS as scaling layer.
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Common questions
Questions.
Are TIPS a good inflation hedge?
Yes for headline CPI exposure, partial for personal inflation. The hedge is more reliable for retirees with budgets close to CPI weights than for households with idiosyncratic inflation exposure.
Should I hold TIPS in retirement?
Yes, often. Retirees face cumulative inflation exposure across long horizons. TIPS or I Bonds provide direct inflation hedge.
What's the simplest TIPS exposure?
VTIP (short-duration TIPS), TIP (broad TIPS), or LTPZ (long-duration TIPS) ETFs. Match duration to horizon.
When are TIPS most valuable?
Years of unexpectedly high inflation. Anticipated inflation is priced in via breakevens; unanticipated inflation is the unhedged risk.
Do TIPS work outside the U.S.?
Yes. UK linkers, Eurozone OATi, and other inflation-linked sovereign markets exist. The dynamics are similar; the inflation indices are local.
Are TIPS appropriate for emergency funds?
No — emergency funds need same-day liquidity. Short-duration TIPS funds offer some functionality but with rate-driven NAV variance.
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