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, October 20, 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
3.196%
Index ratio
1.1256
Real duration
20.327 yr
DV01
0.1428
Convexity
4.94
Real clean price
69.969
Accrued (real)
0.273
Real dirty price
70.242
Indexed principal
112.565
Money clean price
78.760
The index ratio is a multiplier, not a percentage: 1.1256 means the principal is worth that many times its original face today. So the real clean price of 69.969 is not what a buyer pays , multiply by the ratio to get 78.760 per 100 of original face.
Against the fitted real curve
Priced 0.5 bp rich to the real curve on that day, 7.05 cents per 100 of face.
That is -0.25 standard deviations from its own typical residual.
Real yield, 914 observations
Price history
914 trading days to Oct 20, 2026
The most recent 20 trading days of prices for 912810TP3.
Date
Bid
Offer
Close
Oct 20, 2026
69.922
69.844
69.969
Oct 19, 2026
69.594
69.531
69.188
Oct 16, 2026
70.203
70.125
70.000
Oct 15, 2026
69.875
69.781
69.656
Oct 14, 2026
68.328
68.250
68.781
Oct 13, 2026
68.297
68.219
68.188
Oct 9, 2026
67.703
67.656
67.594
Oct 8, 2026
67.313
67.250
67.750
Oct 7, 2026
66.797
66.719
67.063
Oct 6, 2026
67.422
67.344
67.281
Oct 5, 2026
66.969
66.906
66.906
Oct 2, 2026
67.625
67.563
67.375
Oct 1, 2026
67.656
67.594
67.688
Sep 30, 2026
67.719
67.656
67.531
Sep 29, 2026
67.797
67.750
68.031
Sep 28, 2026
68.188
68.125
68.188
Sep 25, 2026
68.781
68.719
69.000
Sep 24, 2026
69.594
69.531
69.188
Sep 23, 2026
70.625
70.563
70.313
Sep 22, 2026
71.719
71.656
71.719
Prices are per 100 of face, from Treasury's own end-of-day file. A dash in the bid or offer column means none was posted that day.
2 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.
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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.