Stripped par is held as separate interest and principal components rather than as whole securities. The Safe Rate indices deliberately do not deduct it, and the whole-market figure is published so that decision can be argued with. Market statistics.
Amount outstanding as reported by Treasury, in its Monthly Statement of the Public Debt. The Safe Rate indices weight on a different figure, float-adjusted original par, and the two are not comparable security by security. For an inflation-linked security the difference is mostly inflation rather than float: Treasury reports what a holder is owed today, which includes the uplift shown as the index ratio above, while the index keeps original par and carries the uplift in the price. The index figures are published per holding.
Inflation-linked measures, November 9, 2026
An inflation-linked security prices off a real curve, so its yield is a real yield, a return above inflation rather than in cash terms, and its principal is indexed. The figures below are in REAL terms unless labeled otherwise.
Real yield
2.917%
Index ratio
1.5323
Real duration
12.021 yr
DV01
0.1098
Convexity
1.66
Real clean price
90.813
Accrued (real)
0.502
Real dirty price
91.315
Indexed principal
153.234
Money clean price
139.155
The index ratio is a multiplier, not a percentage: 1.5323 means the principal is worth that many times its original face today. So the real clean price of 90.813 is not what a buyer pays , multiply by the ratio to get 139.155 per 100 of original face.
Against the fitted real curve
Priced 0.5 bp cheap to the real curve on that day, 5.76 cents per 100 of face.
That is 1.51 standard deviations from its own typical residual.
Real yield, 3,925 observations
Price history
3,925 trading days to Nov 9, 2026
The most recent 20 trading days of prices for 912810QP6.
Date
Bid
Offer
Close
Nov 9, 2026
90.906
90.984
90.813
Nov 6, 2026
91.219
91.297
91.125
Nov 5, 2026
91.156
91.250
91.313
Nov 4, 2026
90.688
90.766
90.938
Nov 3, 2026
91.000
91.094
90.875
Nov 2, 2026
91.563
91.625
91.156
Oct 30, 2026
91.188
91.266
91.125
Oct 29, 2026
91.094
91.172
91.063
Oct 28, 2026
90.813
90.875
90.563
Oct 27, 2026
91.031
91.094
91.063
Oct 26, 2026
90.875
90.953
90.875
Oct 23, 2026
90.938
91.016
90.844
Oct 22, 2026
90.594
90.672
91.156
Oct 21, 2026
89.969
90.047
89.875
Oct 20, 2026
89.719
89.797
89.781
Oct 19, 2026
89.500
89.578
89.250
Oct 16, 2026
89.875
89.969
89.875
Oct 15, 2026
89.594
89.688
89.563
Oct 14, 2026
88.406
88.484
88.844
Oct 13, 2026
88.438
88.531
88.438
Prices are per 100 of face, from Treasury's own end-of-day file. A dash means that side was not quoted that day, which is almost always the offer and almost always near maturity: a holder of a bill days from paying par has little reason to sell it.
3 auctions
A CUSIP can be auctioned more than once: Treasury reopens an existing security rather than issuing a new one, so the same bond is sold again at whatever yield the market then wants.
Index levels before September 30, 2026 are back-tested. They were computed after the fact by applying the rules to historical data, which benefits from hindsight in the choice of rules, and an index cannot be invested in directly. Methodology v1.0 takes effect at that rebalance, when levels begin to be struck on the day; the rulebook is identical either way, and the version is published on every row.
A fitted curve is a fit, not a quote. Daily error averages 3.8 basis points across the history and reaches about 20 on the worst days, in December 2008, when the market was genuinely hard to fit one smooth curve to. Every curve page publishes its own fit error rather than burying it.
Free to benchmark against. Paid only to track. Measuring anything against these curves and indices is free. No license, no fee, no registration, and no permission needed to say that you did, including in a prospectus. A fee applies to one thing: launching a product that tracks an index.
Safe Rate™, Safe Rate Indices™ and the Safe Rate US Treasury Index™ are trademarks of Safe Rate, claimed through use in commerce and not registered. Third-party marks are the property of their owners, which are not affiliated with and do not endorse this data.
Curves are fitted from public Treasury data and carry fit error; figures are not a record of trading, and an index cannot be invested in directly. No claim of compliance with the IOSCO Principles for Financial Benchmarks is made or implied. Not investment advice, not an offer, and not a recommendation to buy or sell any security.