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
3.165%
Index ratio
1.4209
Real duration
16.501 yr
DV01
0.1102
Convexity
2.97
Real clean price
66.625
Accrued (real)
0.137
Real dirty price
66.762
Indexed principal
142.093
Money clean price
94.670
The index ratio is a multiplier, not a percentage: 1.4209 means the principal is worth that many times its original face today. So the real clean price of 66.625 is not what a buyer pays , multiply by the ratio to get 94.670 per 100 of original face.
Against the fitted real curve
Priced 1.1 bp cheap to the real curve on that day, 12.35 cents per 100 of face.
That is -0.99 standard deviations from its own typical residual.
Real yield, 2,915 observations
Price history
2,915 trading days to Oct 20, 2026
The most recent 20 trading days of prices for 912810RL4.
Date
Bid
Offer
Close
Oct 20, 2026
66.609
66.531
66.625
Oct 19, 2026
66.359
66.281
66.031
Oct 16, 2026
66.813
66.719
66.656
Oct 15, 2026
66.547
66.469
66.375
Oct 14, 2026
65.359
65.281
65.688
Oct 13, 2026
65.344
65.250
65.250
Oct 9, 2026
64.875
64.813
64.781
Oct 8, 2026
64.547
64.469
64.906
Oct 7, 2026
64.156
64.094
64.344
Oct 6, 2026
64.625
64.563
64.500
Oct 5, 2026
64.219
64.156
64.125
Oct 2, 2026
64.672
64.594
64.469
Oct 1, 2026
64.719
64.656
64.750
Sep 30, 2026
64.719
64.656
64.500
Sep 29, 2026
64.734
64.688
64.906
Sep 28, 2026
65.031
64.969
65.063
Sep 25, 2026
65.594
65.531
65.719
Sep 24, 2026
66.266
66.219
65.938
Sep 23, 2026
67.125
67.063
66.813
Sep 22, 2026
68.031
67.969
68.000
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.
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.
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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.