Inflation-linked (TIPS)

912810FQ6 · 3.375% due April 15, 2032

Original term
30-Year 6-Month
Maturity
Apr 15, 2032
Coupon
3.375%
Pays
Semi-Annual
Dated
Oct 15, 2001
First coupon
Apr 15, 2002
Priced through
Sep 9, 2026
Analyzed through
not analyzed

Statement of August 31, 2026

Amount outstanding
$9.43bn
Held stripped
$0.0m
Share stripped
0.00%

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, September 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
2.217%
Index ratio
1.8814
Real duration
5.041 yr
DV01
0.0542
Convexity
29.550
Real clean price
106.063
Accrued (real)
1.365
Real dirty price
107.427
Indexed principal
188.136
Money clean price
199.542

The index ratio is a multiplier, not a percentage: 1.8814 means the principal is worth that many times its original face today. So the real clean price of 106.063 is not what a buyer pays , multiply by the ratio to get 199.542 per 100 of original face.

Against the fitted real curve

Priced 5.0 bp cheap to the real curve on that day, 26.83 cents per 100 of face.

Not scored against its own history. A linker needs twenty observations before a score means anything.

Real yield, 4,508 observations

-2%-1%0%1%2%3%4%Sep 2, 2008Sep 9, 2026Sep 2, 2008Real yield2.095%Sep 29, 2008Real yield2.330%Oct 27, 2008Real yield3.104%Nov 24, 2008Real yield3.327%Dec 22, 2008Real yield1.960%Jan 21, 2009Real yield2.398%Feb 18, 2009Real yield2.042%Mar 17, 2009Real yield2.288%Apr 14, 2009Real yield2.028%May 11, 2009Real yield2.227%Jun 8, 2009Real yield2.312%Jul 6, 2009Real yield2.144%Jul 31, 2009Real yield2.159%Aug 27, 2009Real yield2.183%Sep 24, 2009Real yield2.153%Oct 22, 2009Real yield2.094%Nov 19, 2009Real yield1.863%Dec 17, 2009Real yield1.950%Jan 15, 2010Real yield2.013%Feb 12, 2010Real yield2.137%Mar 12, 2010Real yield2.125%Apr 8, 2010Real yield2.104%May 5, 2010Real yield1.821%Jun 1, 2010Real yield1.822%Jun 28, 2010Real yield1.719%Jul 26, 2010Real yield1.893%Aug 20, 2010Real yield1.664%Sep 17, 2010Real yield1.630%Oct 15, 2010Real yield1.273%Nov 12, 2010Real yield1.411%Dec 10, 2010Real yield1.819%Jan 7, 2011Real yield1.759%Feb 4, 2011Real yield2.044%Mar 4, 2011Real yield1.777%Mar 31, 2011Real yield1.745%Apr 28, 2011Real yield1.579%May 25, 2011Real yield1.594%Jun 22, 2011Real yield1.618%Jul 20, 2011Real yield1.371%Aug 16, 2011Real yield0.772%Sep 13, 2011Real yield0.778%Oct 11, 2011Real yield0.846%Nov 7, 2011Real yield0.481%Dec 6, 2011Real yield0.613%Jan 4, 2012Real yield0.567%Feb 1, 2012Real yield0.370%Feb 29, 2012Real yield0.407%Mar 27, 2012Real yield0.563%Apr 23, 2012Real yield0.362%May 18, 2012Real yield0.189%Jun 15, 2012Real yield0.100%Jul 13, 2012Real yield0.010%Aug 9, 2012Real yield0.096%Sep 6, 2012Real yield0.099%Oct 3, 2012Real yield-0.070%Nov 1, 2012Real yield-0.032%Nov 30, 2012Real yield-0.067%Dec 28, 2012Real yield-0.028%Jan 28, 2013Real yield0.132%Feb 25, 2013Real yield0.132%Mar 22, 2013Real yield0.160%Apr 19, 2013Real yield0.032%May 16, 2013Real yield0.248%Jun 13, 2013Real yield0.841%Jul 11, 2013Real yield1.094%Aug 7, 2013Real yield0.927%Sep 4, 2013Real yield1.310%Oct 1, 2013Real yield1.018%Oct 29, 2013Real yield0.941%Nov 26, 2013Real yield1.137%Dec 24, 2013Real yield1.320%Jan 23, 2014Real yield1.095%Feb 20, 2014Real yield1.121%Mar 19, 2014Real yield1.087%Apr 15, 2014Real yield0.941%May 13, 2014Real yield0.858%Jun 10, 2014Real yield0.873%Jul 8, 2014Real yield0.747%Aug 4, 2014Real yield0.670%Aug 29, 2014Real yield0.605%Sep 29, 2014Real yield0.926%Oct 27, 2014Real yield0.770%Nov 25, 2014Real yield0.778%Dec 23, 2014Real yield0.805%Jan 22, 2015Real yield0.576%Feb 19, 2015Real yield0.708%Mar 18, 2015Real yield0.501%Apr 14, 2015Real yield0.446%May 11, 2015Real yield0.731%Jun 8, 2015Real yield0.835%Jul 6, 2015Real yield0.730%Jul 31, 2015Real yield0.731%Aug 27, 2015Real yield0.876%Sep 24, 2015Real yield0.926%Oct 22, 2015Real yield0.843%Nov 19, 2015Real yield0.916%Dec 17, 2015Real yield0.997%Jan 15, 2016Real yield0.952%Feb 12, 2016Real yield0.789%Mar 11, 2016Real yield0.770%Apr 8, 2016Real yield0.436%May 5, 2016Real yield0.426%Jun 2, 2016Real yield0.524%Jun 29, 2016Real yield0.356%Jul 27, 2016Real yield0.335%Aug 23, 2016Real yield0.311%Sep 20, 2016Real yield0.461%Oct 18, 2016Real yield0.357%Nov 15, 2016Real yield0.643%Dec 13, 2016Real yield0.762%Jan 11, 2017Real yield0.610%Feb 8, 2017Real yield0.555%Mar 8, 2017Real yield0.690%Apr 4, 2017Real yield0.543%May 2, 2017Real yield0.546%May 30, 2017Real yield0.527%Jun 26, 2017Real yield0.560%Jul 24, 2017Real yield0.656%Aug 18, 2017Real yield0.596%Sep 15, 2017Real yield0.523%Oct 13, 2017Real yield0.600%Nov 9, 2017Real yield0.617%Dec 7, 2017Real yield0.646%Jan 5, 2018Real yield0.587%Feb 2, 2018Real yield0.794%Mar 2, 2018Real yield0.813%Mar 29, 2018Real yield0.773%Apr 26, 2018Real yield0.903%May 23, 2018Real yield0.933%Jun 20, 2018Real yield0.877%Jul 18, 2018Real yield0.849%Aug 14, 2018Real yield0.886%Sep 11, 2018Real yield0.950%Oct 9, 2018Real yield1.128%Nov 5, 2018Real yield1.234%Dec 4, 2018Real yield1.063%Jan 3, 2019Real yield0.973%Jan 31, 2019Real yield0.837%Feb 28, 2019Real yield0.840%Mar 27, 2019Real yield0.613%Apr 24, 2019Real yield0.621%May 21, 2019Real yield0.663%Jun 18, 2019Real yield0.496%Jul 16, 2019Real yield0.414%Aug 12, 2019Real yield0.160%Sep 9, 2019Real yield0.184%Oct 4, 2019Real yield0.143%Nov 1, 2019Real yield0.253%Dec 2, 2019Real yield0.304%Dec 30, 2019Real yield0.268%Jan 28, 2020Real yield0.097%Feb 25, 2020Real yield-0.105%Mar 23, 2020Real yield0.072%Apr 20, 2020Real yield-0.200%May 15, 2020Real yield-0.346%Jun 12, 2020Real yield-0.445%Jul 10, 2020Real yield-0.692%Aug 6, 2020Real yield-0.973%Sep 2, 2020Real yield-0.974%Sep 30, 2020Real yield-0.867%Oct 28, 2020Real yield-0.835%Nov 25, 2020Real yield-0.797%Dec 23, 2020Real yield-0.949%Jan 22, 2021Real yield-0.990%Feb 19, 2021Real yield-0.804%Mar 18, 2021Real yield-0.578%Apr 14, 2021Real yield-0.685%May 11, 2021Real yield-0.895%Jun 8, 2021Real yield-0.823%Jul 6, 2021Real yield-0.915%Aug 2, 2021Real yield-1.148%Aug 27, 2021Real yield-1.045%Sep 24, 2021Real yield-0.835%Oct 22, 2021Real yield-0.948%Nov 19, 2021Real yield-1.094%Dec 17, 2021Real yield-0.973%Jan 14, 2022Real yield-0.713%Feb 11, 2022Real yield-0.612%Mar 11, 2022Real yield-1.040%Apr 7, 2022Real yield-0.238%May 5, 2022Real yield0.104%Jun 2, 2022Real yield0.297%Jun 30, 2022Real yield0.690%Jul 28, 2022Real yield0.278%Aug 24, 2022Real yield0.598%Sep 21, 2022Real yield1.244%Oct 19, 2022Real yield1.846%Nov 16, 2022Real yield1.512%Dec 14, 2022Real yield1.440%Jan 12, 2023Real yield1.356%Feb 9, 2023Real yield1.438%Mar 9, 2023Real yield1.724%Apr 5, 2023Real yield1.152%May 2, 2023Real yield1.298%May 30, 2023Real yield1.537%Jun 27, 2023Real yield1.672%Jul 25, 2023Real yield1.677%Aug 21, 2023Real yield2.145%Sep 18, 2023Real yield2.094%Oct 16, 2023Real yield2.453%Nov 10, 2023Real yield2.418%Dec 8, 2023Real yield2.142%Jan 8, 2024Real yield1.878%Feb 5, 2024Real yield1.964%Mar 4, 2024Real yield1.921%Mar 29, 2024Real yield1.917%Apr 25, 2024Real yield2.297%May 22, 2024Real yield2.118%Jun 20, 2024Real yield2.016%Jul 18, 2024Real yield1.905%Aug 14, 2024Real yield1.744%Sep 11, 2024Real yield1.573%Oct 8, 2024Real yield1.707%Nov 5, 2024Real yield1.909%Dec 4, 2024Real yield1.791%Jan 2, 2025Real yield2.131%Jan 30, 2025Real yield1.994%Feb 27, 2025Real yield1.767%Mar 26, 2025Real yield1.770%Apr 22, 2025Real yield1.878%May 19, 2025Real yield1.790%Jun 16, 2025Real yield1.834%Jul 15, 2025Real yield1.715%Aug 11, 2025Real yield1.499%Sep 8, 2025Real yield1.293%Oct 3, 2025Real yield1.470%Oct 31, 2025Real yield1.507%Dec 1, 2025Real yield1.525%Dec 29, 2025Real yield1.588%Jan 27, 2026Real yield1.503%Feb 24, 2026Real yield1.366%Mar 23, 2026Real yield1.589%Apr 17, 2026Real yield1.460%May 14, 2026Real yield1.545%Jun 11, 2026Real yield1.834%Jul 10, 2026Real yield2.039%Aug 6, 2026Real yield2.188%Sep 2, 2026Real yield2.203%Sep 9, 2026Real yield2.217%

Price history

4,508 trading days to Sep 9, 2026

100110120130140150160170Sep 2, 2008Sep 9, 2026Sep 2, 2008Close123.750Sep 29, 2008Close118.844Oct 27, 2008Close104.500Nov 24, 2008Close100.781Dec 22, 2008Close126.375Jan 21, 2009Close117.313Feb 18, 2009Close124.500Mar 17, 2009Close119.406Apr 14, 2009Close124.656May 11, 2009Close120.531Jun 8, 2009Close118.781Jul 6, 2009Close122.094Jul 31, 2009Close121.719Aug 27, 2009Close121.188Sep 24, 2009Close121.750Oct 22, 2009Close122.875Nov 19, 2009Close127.594Dec 17, 2009Close125.688Jan 15, 2010Close124.313Feb 12, 2010Close121.750Mar 12, 2010Close121.938Apr 8, 2010Close122.313May 5, 2010Close128.000Jun 1, 2010Close127.906Jun 28, 2010Close130.000Jul 26, 2010Close126.281Aug 20, 2010Close131.000Sep 17, 2010Close131.625Oct 15, 2010Close139.406Nov 12, 2010Close136.188Dec 10, 2010Close127.406Jan 7, 2011Close128.563Feb 4, 2011Close122.781Mar 4, 2011Close128.031Mar 31, 2011Close128.594Apr 28, 2011Close131.938May 25, 2011Close131.531Jun 22, 2011Close130.938Jul 20, 2011Close136.063Aug 16, 2011Close149.625Sep 13, 2011Close149.313Oct 11, 2011Close147.531Nov 7, 2011Close156.250Dec 6, 2011Close152.781Jan 4, 2012Close153.719Feb 1, 2012Close158.438Feb 29, 2012Close157.281Mar 27, 2012Close153.250Apr 23, 2012Close158.000May 18, 2012Close162.188Jun 15, 2012Close164.281Jul 13, 2012Close166.375Aug 9, 2012Close163.906Sep 6, 2012Close163.594Oct 3, 2012Close167.750Nov 1, 2012Close166.469Nov 30, 2012Close167.094Dec 28, 2012Close165.813Jan 28, 2013Close161.500Feb 25, 2013Close161.250Mar 22, 2013Close160.313Apr 19, 2013Close163.250May 16, 2013Close157.750Jun 13, 2013Close144.063Jul 11, 2013Close138.594Aug 7, 2013Close141.906Sep 4, 2013Close134.000Oct 1, 2013Close139.719Oct 29, 2013Close141.156Nov 26, 2013Close137.031Dec 24, 2013Close133.313Jan 23, 2014Close137.563Feb 20, 2014Close136.906Mar 19, 2014Close137.438Apr 15, 2014Close140.219May 13, 2014Close141.719Jun 10, 2014Close141.250Jul 8, 2014Close143.656Aug 4, 2014Close145.063Aug 29, 2014Close146.219Sep 29, 2014Close139.563Oct 27, 2014Close142.500Nov 25, 2014Close142.156Dec 23, 2014Close141.438Jan 22, 2015Close145.844Feb 19, 2015Close143.000Mar 18, 2015Close146.969Apr 14, 2015Close147.906May 11, 2015Close142.031Jun 8, 2015Close139.844Jul 6, 2015Close141.688Jul 31, 2015Close141.500Aug 27, 2015Close138.594Sep 24, 2015Close137.500Oct 22, 2015Close138.875Nov 19, 2015Close137.375Dec 17, 2015Close135.750Jan 15, 2016Close136.375Feb 12, 2016Close139.156Mar 11, 2016Close139.344Apr 8, 2016Close145.406May 5, 2016Close145.406Jun 2, 2016Close143.344Jun 29, 2016Close146.313Jul 27, 2016Close146.500Aug 23, 2016Close146.750Sep 20, 2016Close143.719Oct 18, 2016Close145.438Nov 15, 2016Close140.031Dec 13, 2016Close137.750Jan 11, 2017Close140.219Feb 8, 2017Close141.000Mar 8, 2017Close138.438Apr 4, 2017Close140.813May 2, 2017Close140.563May 30, 2017Close140.688Jun 26, 2017Close139.938Jul 24, 2017Close138.094Aug 18, 2017Close138.938Sep 15, 2017Close139.969Oct 13, 2017Close138.469Nov 9, 2017Close138.000Dec 7, 2017Close137.344Jan 5, 2018Close138.094Feb 2, 2018Close134.563Mar 2, 2018Close134.094Mar 29, 2018Close134.563Apr 26, 2018Close132.375May 23, 2018Close131.750Jun 20, 2018Close132.438Jul 18, 2018Close132.688Aug 14, 2018Close131.969Sep 11, 2018Close130.844Oct 9, 2018Close128.094Nov 5, 2018Close126.438Dec 4, 2018Close128.719Jan 3, 2019Close129.844Jan 31, 2019Close131.656Feb 28, 2019Close131.438Mar 27, 2019Close134.594Apr 24, 2019Close134.281May 21, 2019Close133.469Jun 18, 2019Close135.719Jul 16, 2019Close136.719Aug 12, 2019Close140.313Sep 9, 2019Close139.719Oct 4, 2019Close140.094Nov 1, 2019Close138.219Dec 2, 2019Close137.250Dec 30, 2019Close137.531Jan 28, 2020Close139.781Feb 25, 2020Close142.500Mar 23, 2020Close139.656Apr 20, 2020Close143.375May 15, 2020Close145.281Jun 12, 2020Close146.469Jul 10, 2020Close149.906Aug 6, 2020Close153.969Sep 2, 2020Close153.625Sep 30, 2020Close151.594Oct 28, 2020Close150.750Nov 25, 2020Close149.813Dec 23, 2020Close151.750Jan 22, 2021Close151.938Feb 19, 2021Close148.813Mar 18, 2021Close145.281Apr 14, 2021Close146.469May 11, 2021Close149.125Jun 8, 2021Close147.750Jul 6, 2021Close148.688Aug 2, 2021Close151.656Aug 27, 2021Close149.813Sep 24, 2021Close146.531Oct 22, 2021Close147.719Nov 19, 2021Close149.344Dec 17, 2021Close147.313Jan 14, 2022Close143.500Feb 11, 2022Close141.875Mar 11, 2022Close147.094Apr 7, 2022Close136.656May 5, 2022Close132.344Jun 2, 2022Close129.906Jun 30, 2022Close125.375Jul 28, 2022Close129.656Aug 24, 2022Close125.969Sep 21, 2022Close119.156Oct 19, 2022Close113.250Nov 16, 2022Close116.281Dec 14, 2022Close116.844Jan 12, 2023Close117.500Feb 9, 2023Close116.594Mar 9, 2023Close113.844Apr 5, 2023Close119.000May 2, 2023Close117.500May 30, 2023Close115.188Jun 27, 2023Close113.875Jul 25, 2023Close113.719Aug 21, 2023Close109.656Sep 18, 2023Close110.000Oct 16, 2023Close107.031Nov 10, 2023Close107.250Dec 8, 2023Close109.375Jan 8, 2024Close111.406Feb 5, 2024Close110.625Mar 4, 2024Close110.875Mar 29, 2024Close110.813Apr 25, 2024Close107.813May 22, 2024Close109.094Jun 20, 2024Close109.781Jul 18, 2024Close110.531Aug 14, 2024Close111.656Sep 11, 2024Close112.844Oct 8, 2024Close111.719Nov 5, 2024Close110.125Dec 4, 2024Close110.875Jan 2, 2025Close108.344Jan 30, 2025Close109.219Feb 27, 2025Close110.719Mar 26, 2025Close110.594Apr 22, 2025Close109.750May 19, 2025Close110.250Jun 16, 2025Close109.844Jul 15, 2025Close110.531Aug 11, 2025Close111.875Sep 8, 2025Close113.125Oct 3, 2025Close111.813Oct 31, 2025Close111.438Dec 1, 2025Close111.188Dec 29, 2025Close110.656Jan 27, 2026Close111.063Feb 24, 2026Close111.781Mar 23, 2026Close110.281Apr 17, 2026Close110.938May 14, 2026Close110.313Jun 11, 2026Close108.500Jul 10, 2026Close107.219Aug 6, 2026Close106.313Sep 2, 2026Close106.156Sep 9, 2026Close106.063
The most recent 20 trading days of prices for 912810FQ6.
DateBidOfferClose
Sep 9, 2026106.078106.031106.063
Sep 8, 2026106.266106.219106.219
Sep 4, 2026106.250106.219106.219
Sep 3, 2026106.531106.500106.344
Sep 2, 2026106.188106.156106.156
Sep 1, 2026106.219106.188106.188
Aug 31, 2026106.250106.219106.250
Aug 28, 2026106.484106.438106.250
Aug 27, 2026106.938106.906106.844
Aug 26, 2026106.922106.875106.906
Aug 25, 2026107.047107.000107.031
Aug 24, 2026106.859106.813106.750
Aug 21, 2026106.766106.719106.688
Aug 20, 2026106.859106.813106.938
Aug 19, 2026106.906106.875106.875
Aug 18, 2026106.672106.625106.656
Aug 17, 2026106.609106.563106.500
Aug 14, 2026106.641106.594106.594
Aug 13, 2026106.750106.719106.688
Aug 12, 2026106.609106.563106.469

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.

Auction

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.

Auction history for 912810FQ6.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Oct 10, 2001Oct 15, 2001New issue$5.0bn$5.0bn2.23x3.465%

The curve this was priced against →

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.