IV Macro Policy & Sovereign Debt
Breakeven inflation
The average inflation rate implied by markets, read from the yield gap between a nominal government bond and an inflation-linked bond of the same maturity.
How it works
The US Treasury sells two kinds of security at the same maturity: a nominal bond with a fixed yield, and an inflation-linked bond (TIPS) whose principal adjusts with consumer prices. The difference between their yields is the breakeven inflation rate. The St. Louis Fed's FRED series derives the 10-year rate from these two securities and presents it as the market's expectation of average inflation over the next decade.
The rate lets you split a nominal yield into two parts. If the nominal yield rises while breakeven holds steady, the increase comes from the real yield, the return investors demand after stripping out inflation. Between 1 September and 8 October 2026, for example, the US 10-year yield rose by 43 basis points while breakeven stayed at 2.35%.
There are two traps in the measure. Breakeven carries not only expected inflation but also a premium for inflation risk and a liquidity gap that stems from the shallower market in inflation-linked bonds. It therefore does not map one-for-one onto household surveys, and on its own it is not a gauge of confidence in the Fed's target.
Why it matters here
When bond yields rise, the first question is whether the move comes from inflation fear or from real rates. The answer defines the regime: a rise driven by real rates strengthens the dollar and tightens conditions in emerging markets, while one driven by an inflation premium can weaken the dollar along with the debt burden. Türkiye's reserves and room on interest rates are directly affected by this distinction.