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
3.183%
Index ratio
1.3861
Real duration
17.813 yr
DV01
0.1172
Convexity
3.52
Real clean price
65.656
Accrued (real)
0.159
Real dirty price
65.816
Indexed principal
138.614
Money clean price
91.009
The index ratio is a multiplier, not a percentage: 1.3861 means the principal is worth that many times its original face today. So the real clean price of 65.656 is not what a buyer pays , multiply by the ratio to get 91.009 per 100 of original face.
Against the fitted real curve
Priced 0.5 bp rich to the real curve on that day, 6.39 cents per 100 of face.
That is -2.65 standard deviations from its own typical residual.
Real yield, 2,414 observations
Price history
2,414 trading days to Oct 20, 2026
The most recent 20 trading days of prices for 912810RW0.
Date
Bid
Offer
Close
Oct 20, 2026
65.625
65.531
65.656
Oct 19, 2026
65.344
65.281
65.000
Oct 16, 2026
65.844
65.750
65.688
Oct 15, 2026
65.563
65.469
65.406
Oct 14, 2026
64.297
64.219
64.656
Oct 13, 2026
64.250
64.156
64.156
Oct 9, 2026
63.750
63.688
63.656
Oct 8, 2026
63.406
63.344
63.750
Oct 7, 2026
62.984
62.906
63.188
Oct 6, 2026
63.500
63.438
63.375
Oct 5, 2026
63.094
63.031
63.000
Oct 2, 2026
63.594
63.531
63.375
Oct 1, 2026
63.594
63.531
63.594
Sep 30, 2026
63.625
63.563
63.438
Sep 29, 2026
63.656
63.594
63.844
Sep 28, 2026
64.000
63.938
64.000
Sep 25, 2026
64.531
64.469
64.688
Sep 24, 2026
65.234
65.156
64.875
Sep 23, 2026
66.125
66.063
65.813
Sep 22, 2026
67.094
67.031
67.031
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.