Real Yields vs. Breakevens: How to Read a Move in the 10-Year
The 10-year Treasury yield rose from 4.05% to 5.10% between 15 October 2025 and 15 October 2026. Almost all of that rise came from the real yield, not from inflation expectations. Here is how to split a yield move in two, using public FRED data.
By PYE Markets • Published 2026-10-18 • Updated 2026-10-21 • 4 min read
Update, 2026-10-21: Rewritten on 21 October 2026. This explainer replaces “Real Yields, the Dollar and Positioning: A Macro Starter Kit” and now works through dated FRED figures. Positioning is covered in our weekly positioning notes and the dollar in our FX article.
Key points
- The 10-year Treasury yield splits, approximately, into the real yield paid by inflation-protected Treasuries (FRED: DFII10) and breakeven inflation, the inflation rate the market is pricing (FRED: T10YIE).
- From 15 October 2025 to 15 October 2026 the 10-year yield rose 105 basis points, from 4.05% to 5.10%. The real yield rose 102 basis points and breakeven inflation rose 3.
- So over that year investors asked for a higher return after inflation; they were not pricing in much more inflation.
- 10-year yield: 4.05% → 5.10% (15 Oct 2025 → 15 Oct 2026)
- 10-year real yield: 1.76% → 2.78%
- 10-year breakeven: 2.29% → 2.32%
When the 10-year Treasury yield moves, the useful question is which part moved. The nominal yield splits, approximately, into two published series: the real yield, which is what 10-year inflation-protected Treasuries (TIPS) pay, and breakeven inflation, the gap between the two. Both are free on FRED, the St. Louis Fed’s data site.
A worked example
On 15 October 2025 the 10-year yield (DGS10) was 4.05%: a real yield (DFII10) of 1.76% plus breakeven inflation (T10YIE) of 2.29%. On 15 October 2026 it was 5.10%: a real yield of 2.78% plus breakeven inflation of 2.32%. The nominal yield rose 105 basis points. The real yield rose 102 and breakeven inflation rose 3. In other words, investors were asking for a higher return after inflation, not pricing in more inflation.
Why the split matters
The two parts tend to affect different markets. Neither relationship holds in every period.
- A higher real yield raises the rate used to discount future profits. That has often weighed most on companies whose value lies far in the future, and on gold, which pays no income.
- A rise driven by breakevens points more toward inflation worries, which tends to show up first in commodities and inflation-linked assets.
Check it yourself
Open DGS10, DFII10 and T10YIE on FRED for the same date and add the real yield to the breakeven. The sum should come within a few hundredths of a percentage point of the nominal yield; the two sides are measured from different bonds, so they rarely match exactly. Our rates page shows all three with their dates.
When it moves
Yields react most to scheduled releases and to central bank decisions. The next ones on the official calendars: the Federal Reserve’s meeting on 27–28 October 2026, and the BEA’s advance estimate of third-quarter GDP and its personal income and outlays report on 29 October 2026, both at 8:30 AM ET.
The 10-year yield, split in two (FRED daily values)
| Series (FRED code) | 15 Oct 2025 | 15 Oct 2026 | Change |
|---|---|---|---|
| 10-year Treasury yield (DGS10) | 4.05% | 5.10% | +105 bp |
| 10-year TIPS real yield (DFII10) | 1.76% | 2.78% | +102 bp |
| 10-year breakeven inflation (T10YIE) | 2.29% | 2.32% | +3 bp |
Real yield plus breakeven inflation is roughly the nominal yield. Over the year to 15 October 2026, the real yield did almost all of the moving.
Sources
- FRED: 10-year Treasury yield (DGS10)
- FRED: 10-year TIPS real yield (DFII10)
- FRED: 10-year breakeven inflation (T10YIE)
- Federal Reserve: FOMC meeting calendar
- BEA: release schedule
Figures: FRED, Federal Reserve Bank of St. Louis (DGS10, DFII10, T10YIE), daily values for 15 October 2025 and 15 October 2026, fetched 21 October 2026. Release dates: Federal Reserve FOMC calendar and the BEA release schedule. General market information, not investment advice.