Market Yield on U.S. Treasury Securities at 30-Year Constant Maturity, Quoted on an Investment Basis, Inflation-Indexed

FII30inflationFree tier

Series IDFII30
UnitsPercent
FrequencyMonthly
Categoryinflation
Latest observation2026-09-01
HistoryPoint-in-time: every value as first published plus each revision, so backtests see only what was known on the day

Latest reading

The latest Market Yield on U.S. Treasury Securities at 30-Year Constant Maturity, Quoted on an Investment Basis, Inflation-Indexed observation, for 2026-09-01, is 3.09 Percent, up from 2.97 for 2026-08-01. It has not been revised since it was first published. 0.5% of observations in this history were revised after first release.

Latest observation2026-09-01
Latest value3.09 Percent
Previous2.97 (2026-08-01)
Change0.12 (+4.0%)
First published value3.09
Last release2026-10-01
Vintages stored201
Observations200

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df.tail()

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