Treasury bond

912810QS0 · 3.75% due August 15, 2041

Original term
30-Year
Maturity
Aug 15, 2041
Coupon
3.750%
Pays
Semi-Annual
Dated
Aug 15, 2011
First coupon
Feb 15, 2012
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$42.49bn
Held stripped
$485.7m
Share stripped
1.14%

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. The index figures are published per holding.

Risk, September 9, 2026

Yield to maturity
5.127%
Modified duration
10.931 yr
DV01
0.0940
Convexity
148.475
Dirty price
86.015

Where its rate sensitivity sits

3M
6M
1Y
2Y
3Y
5Y
7Y
10Y
15Y
20Y
25Y
30Y
Sensitivity to a one basis point move at each point on the curve, in years. Concentrated in 9 of twelve buckets, summing to 11.141 years against a modified duration of 10.931.

Against the fitted curve

Priced 0.8 bp rich to the curve on that day, 7.18 cents per 100 of face.

That is -1.32 standard deviations from its own typical residual.

Yield to maturity, 3,768 observations

0%1%2%3%4%5%6%Aug 15, 2011Sep 9, 2026Aug 15, 2011Yield to maturity3.753%Sep 7, 2011Yield to maturity3.361%Sep 29, 2011Yield to maturity3.025%Oct 24, 2011Yield to maturity3.272%Nov 16, 2011Yield to maturity3.025%Dec 9, 2011Yield to maturity3.083%Jan 4, 2012Yield to maturity3.010%Jan 27, 2012Yield to maturity3.043%Feb 21, 2012Yield to maturity3.162%Mar 14, 2012Yield to maturity3.389%Apr 5, 2012Yield to maturity3.294%Apr 27, 2012Yield to maturity3.087%May 21, 2012Yield to maturity2.765%Jun 13, 2012Yield to maturity2.661%Jul 6, 2012Yield to maturity2.620%Jul 30, 2012Yield to maturity2.536%Aug 21, 2012Yield to maturity2.839%Sep 13, 2012Yield to maturity2.874%Oct 5, 2012Yield to maturity2.886%Oct 31, 2012Yield to maturity2.784%Nov 26, 2012Yield to maturity2.721%Dec 18, 2012Yield to maturity2.923%Jan 11, 2013Yield to maturity2.969%Feb 5, 2013Yield to maturity3.132%Feb 28, 2013Yield to maturity3.032%Mar 22, 2013Yield to maturity3.075%Apr 16, 2013Yield to maturity2.852%May 8, 2013Yield to maturity2.928%May 31, 2013Yield to maturity3.232%Jun 24, 2013Yield to maturity3.509%Jul 17, 2013Yield to maturity3.511%Aug 8, 2013Yield to maturity3.607%Aug 30, 2013Yield to maturity3.665%Sep 24, 2013Yield to maturity3.635%Oct 17, 2013Yield to maturity3.623%Nov 8, 2013Yield to maturity3.799%Dec 4, 2013Yield to maturity3.857%Dec 27, 2013Yield to maturity3.897%Jan 22, 2014Yield to maturity3.710%Feb 13, 2014Yield to maturity3.642%Mar 10, 2014Yield to maturity3.675%Apr 1, 2014Yield to maturity3.552%Apr 24, 2014Yield to maturity3.404%May 16, 2014Yield to maturity3.271%Jun 10, 2014Yield to maturity3.396%Jul 2, 2014Yield to maturity3.395%Jul 25, 2014Yield to maturity3.172%Aug 18, 2014Yield to maturity3.128%Sep 10, 2014Yield to maturity3.195%Oct 3, 2014Yield to maturity3.057%Oct 28, 2014Yield to maturity2.990%Nov 20, 2014Yield to maturity2.983%Dec 16, 2014Yield to maturity2.614%Jan 9, 2015Yield to maturity2.467%Feb 3, 2015Yield to maturity2.304%Feb 26, 2015Yield to maturity2.567%Mar 20, 2015Yield to maturity2.446%Apr 13, 2015Yield to maturity2.520%May 5, 2015Yield to maturity2.839%May 28, 2015Yield to maturity2.855%Jun 19, 2015Yield to maturity3.004%Jul 14, 2015Yield to maturity3.150%Aug 5, 2015Yield to maturity2.879%Aug 27, 2015Yield to maturity2.859%Sep 21, 2015Yield to maturity2.946%Oct 14, 2015Yield to maturity2.748%Nov 5, 2015Yield to maturity2.919%Dec 1, 2015Yield to maturity2.824%Dec 23, 2015Yield to maturity2.904%Jan 19, 2016Yield to maturity2.719%Feb 10, 2016Yield to maturity2.412%Mar 4, 2016Yield to maturity2.579%Mar 29, 2016Yield to maturity2.484%Apr 20, 2016Yield to maturity2.553%May 12, 2016Yield to maturity2.478%Jun 6, 2016Yield to maturity2.426%Jun 28, 2016Yield to maturity2.138%Jul 21, 2016Yield to maturity2.178%Aug 12, 2016Yield to maturity2.122%Sep 6, 2016Yield to maturity2.139%Sep 28, 2016Yield to maturity2.200%Oct 21, 2016Yield to maturity2.397%Nov 15, 2016Yield to maturity2.897%Dec 8, 2016Yield to maturity3.047%Jan 3, 2017Yield to maturity2.998%Jan 26, 2017Yield to maturity3.042%Feb 17, 2017Yield to maturity2.990%Mar 14, 2017Yield to maturity3.140%Apr 5, 2017Yield to maturity2.933%Apr 28, 2017Yield to maturity2.891%May 22, 2017Yield to maturity2.839%Jun 14, 2017Yield to maturity2.712%Jul 7, 2017Yield to maturity2.866%Jul 31, 2017Yield to maturity2.817%Aug 22, 2017Yield to maturity2.705%Sep 14, 2017Yield to maturity2.678%Oct 6, 2017Yield to maturity2.825%Oct 31, 2017Yield to maturity2.792%Nov 22, 2017Yield to maturity2.685%Dec 15, 2017Yield to maturity2.624%Jan 10, 2018Yield to maturity2.829%Feb 2, 2018Yield to maturity3.035%Feb 27, 2018Yield to maturity3.125%Mar 21, 2018Yield to maturity3.081%Apr 13, 2018Yield to maturity2.977%May 7, 2018Yield to maturity3.077%May 30, 2018Yield to maturity2.979%Jun 21, 2018Yield to maturity3.016%Jul 16, 2018Yield to maturity2.938%Aug 7, 2018Yield to maturity3.104%Aug 29, 2018Yield to maturity3.002%Sep 21, 2018Yield to maturity3.189%Oct 16, 2018Yield to maturity3.305%Nov 7, 2018Yield to maturity3.408%Dec 3, 2018Yield to maturity3.228%Dec 27, 2018Yield to maturity3.004%Jan 22, 2019Yield to maturity3.008%Feb 13, 2019Yield to maturity2.974%Mar 8, 2019Yield to maturity2.937%Apr 1, 2019Yield to maturity2.800%Apr 24, 2019Yield to maturity2.852%May 16, 2019Yield to maturity2.741%Jun 10, 2019Yield to maturity2.518%Jul 2, 2019Yield to maturity2.392%Jul 25, 2019Yield to maturity2.487%Aug 16, 2019Yield to maturity1.907%Sep 10, 2019Yield to maturity2.086%Oct 2, 2019Yield to maturity1.988%Oct 25, 2019Yield to maturity2.202%Nov 19, 2019Yield to maturity2.194%Dec 12, 2019Yield to maturity2.254%Jan 7, 2020Yield to maturity2.235%Jan 30, 2020Yield to maturity1.955%Feb 24, 2020Yield to maturity1.752%Mar 17, 2020Yield to maturity1.552%Apr 8, 2020Yield to maturity1.246%May 1, 2020Yield to maturity1.133%May 26, 2020Yield to maturity1.247%Jun 17, 2020Yield to maturity1.319%Jul 10, 2020Yield to maturity1.136%Aug 3, 2020Yield to maturity1.020%Aug 25, 2020Yield to maturity1.178%Sep 17, 2020Yield to maturity1.188%Oct 9, 2020Yield to maturity1.313%Nov 3, 2020Yield to maturity1.397%Nov 27, 2020Yield to maturity1.317%Dec 21, 2020Yield to maturity1.425%Jan 14, 2021Yield to maturity1.639%Feb 8, 2021Yield to maturity1.724%Mar 3, 2021Yield to maturity2.060%Mar 25, 2021Yield to maturity2.179%Apr 16, 2021Yield to maturity2.093%May 10, 2021Yield to maturity2.142%Jun 2, 2021Yield to maturity2.156%Jun 24, 2021Yield to maturity1.980%Jul 19, 2021Yield to maturity1.681%Aug 10, 2021Yield to maturity1.840%Sep 1, 2021Yield to maturity1.769%Sep 24, 2021Yield to maturity1.857%Oct 19, 2021Yield to maturity2.001%Nov 10, 2021Yield to maturity1.918%Dec 6, 2021Yield to maturity1.787%Dec 29, 2021Yield to maturity1.936%Jan 21, 2022Yield to maturity2.092%Feb 14, 2022Yield to maturity2.328%Mar 9, 2022Yield to maturity2.350%Mar 31, 2022Yield to maturity2.576%Apr 25, 2022Yield to maturity3.068%May 17, 2022Yield to maturity3.357%Jun 9, 2022Yield to maturity3.410%Jul 5, 2022Yield to maturity3.266%Jul 27, 2022Yield to maturity3.210%Aug 18, 2022Yield to maturity3.306%Sep 12, 2022Yield to maturity3.738%Oct 4, 2022Yield to maturity3.946%Oct 27, 2022Yield to maturity4.324%Nov 21, 2022Yield to maturity4.136%Dec 14, 2022Yield to maturity3.719%Jan 9, 2023Yield to maturity3.795%Feb 1, 2023Yield to maturity3.615%Feb 24, 2023Yield to maturity4.090%Mar 20, 2023Yield to maturity3.766%Apr 11, 2023Yield to maturity3.695%May 3, 2023Yield to maturity3.728%May 25, 2023Yield to maturity4.133%Jun 20, 2023Yield to maturity3.966%Jul 13, 2023Yield to maturity4.022%Aug 4, 2023Yield to maturity4.321%Aug 28, 2023Yield to maturity4.444%Sep 20, 2023Yield to maturity4.552%Oct 13, 2023Yield to maturity4.969%Nov 6, 2023Yield to maturity4.986%Nov 29, 2023Yield to maturity4.605%Dec 21, 2023Yield to maturity4.160%Jan 17, 2024Yield to maturity4.390%Feb 8, 2024Yield to maturity4.446%Mar 4, 2024Yield to maturity4.461%Mar 26, 2024Yield to maturity4.460%Apr 17, 2024Yield to maturity4.796%May 9, 2024Yield to maturity4.657%Jun 3, 2024Yield to maturity4.589%Jun 26, 2024Yield to maturity4.493%Jul 19, 2024Yield to maturity4.484%Aug 12, 2024Yield to maturity4.179%Sep 4, 2024Yield to maturity4.032%Sep 26, 2024Yield to maturity4.048%Oct 21, 2024Yield to maturity4.446%Nov 13, 2024Yield to maturity4.656%Dec 6, 2024Yield to maturity4.347%Dec 31, 2024Yield to maturity4.806%Jan 24, 2025Yield to maturity4.873%Feb 18, 2025Yield to maturity4.762%Mar 12, 2025Yield to maturity4.602%Apr 3, 2025Yield to maturity4.403%Apr 25, 2025Yield to maturity4.677%May 19, 2025Yield to maturity4.885%Jun 11, 2025Yield to maturity4.827%Jul 7, 2025Yield to maturity4.843%Jul 29, 2025Yield to maturity4.739%Aug 20, 2025Yield to maturity4.748%Sep 12, 2025Yield to maturity4.512%Oct 6, 2025Yield to maturity4.606%Oct 29, 2025Yield to maturity4.467%Nov 21, 2025Yield to maturity4.537%Dec 16, 2025Yield to maturity4.635%Jan 9, 2026Yield to maturity4.599%Feb 3, 2026Yield to maturity4.695%Feb 26, 2026Yield to maturity4.442%Mar 20, 2026Yield to maturity4.847%Apr 13, 2026Yield to maturity4.722%May 5, 2026Yield to maturity4.831%May 28, 2026Yield to maturity4.835%Jun 22, 2026Yield to maturity4.832%Jul 15, 2026Yield to maturity4.918%Aug 6, 2026Yield to maturity5.065%Aug 28, 2026Yield to maturity5.053%Sep 9, 2026Yield to maturity5.127%

Price history

3,768 trading days to Sep 9, 2026

80100120140160Aug 15, 2011Sep 9, 2026Aug 15, 2011Close99.938Sep 7, 2011Close107.313Sep 29, 2011Close114.188Oct 24, 2011Close109.063Nov 16, 2011Close114.156Dec 9, 2011Close112.906Jan 4, 2012Close114.438Jan 27, 2012Close113.719Feb 21, 2012Close111.219Mar 14, 2012Close106.688Apr 5, 2012Close108.531Apr 27, 2012Close112.719May 21, 2012Close119.656Jun 13, 2012Close122.000Jul 6, 2012Close122.906Jul 30, 2012Close124.844Aug 21, 2012Close117.906Sep 13, 2012Close117.125Oct 5, 2012Close116.844Oct 31, 2012Close119.031Nov 26, 2012Close120.406Dec 18, 2012Close115.969Jan 11, 2013Close114.969Feb 5, 2013Close111.594Feb 28, 2013Close113.625Mar 22, 2013Close112.719Apr 16, 2013Close117.375May 8, 2013Close115.719May 31, 2013Close109.531Jun 24, 2013Close104.281Jul 17, 2013Close104.250Aug 8, 2013Close102.500Aug 30, 2013Close101.469Sep 24, 2013Close102.000Oct 17, 2013Close102.219Nov 8, 2013Close99.156Dec 4, 2013Close98.188Dec 27, 2013Close97.531Jan 22, 2014Close100.688Feb 13, 2014Close101.875Mar 10, 2014Close101.281Apr 1, 2014Close103.438Apr 24, 2014Close106.125May 16, 2014Close108.594Jun 10, 2014Close106.250Jul 2, 2014Close106.250Jul 25, 2014Close110.438Aug 18, 2014Close111.281Sep 10, 2014Close109.969Oct 3, 2014Close112.625Oct 28, 2014Close113.938Nov 20, 2014Close114.063Dec 16, 2014Close121.719Jan 9, 2015Close124.906Feb 3, 2015Close128.594Feb 26, 2015Close122.625Mar 20, 2015Close125.250Apr 13, 2015Close123.563May 5, 2015Close116.781May 28, 2015Close116.438Jun 19, 2015Close113.438Jul 14, 2015Close110.625Aug 5, 2015Close115.875Aug 27, 2015Close116.250Sep 21, 2015Close114.500Oct 14, 2015Close118.438Nov 5, 2015Close114.969Dec 1, 2015Close116.844Dec 23, 2015Close115.219Jan 19, 2016Close118.906Feb 10, 2016Close125.375Mar 4, 2016Close121.750Mar 29, 2016Close123.719Apr 20, 2016Close122.219May 12, 2016Close123.781Jun 6, 2016Close124.844Jun 28, 2016Close131.219Jul 21, 2016Close130.250Aug 12, 2016Close131.469Sep 6, 2016Close131.000Sep 28, 2016Close129.563Oct 21, 2016Close125.188Nov 15, 2016Close115.000Dec 8, 2016Close112.125Jan 3, 2017Close113.031Jan 26, 2017Close112.188Feb 17, 2017Close113.125Mar 14, 2017Close110.344Apr 5, 2017Close114.156Apr 28, 2017Close114.906May 22, 2017Close115.875Jun 14, 2017Close118.313Jul 7, 2017Close115.313Jul 31, 2017Close116.219Aug 22, 2017Close118.344Sep 14, 2017Close118.844Oct 6, 2017Close115.969Oct 31, 2017Close116.563Nov 22, 2017Close118.594Dec 15, 2017Close119.750Jan 10, 2018Close115.781Feb 2, 2018Close111.969Feb 27, 2018Close110.344Mar 21, 2018Close111.094Apr 13, 2018Close112.938May 7, 2018Close111.125May 30, 2018Close112.844Jun 21, 2018Close112.156Jul 16, 2018Close113.531Aug 7, 2018Close110.563Aug 29, 2018Close112.344Sep 21, 2018Close109.063Oct 16, 2018Close107.094Nov 7, 2018Close105.375Dec 3, 2018Close108.344Dec 27, 2018Close112.188Jan 22, 2019Close112.094Feb 13, 2019Close112.656Mar 8, 2019Close113.281Apr 1, 2019Close115.719Apr 24, 2019Close114.750May 16, 2019Close116.719Jun 10, 2019Close120.844Jul 2, 2019Close123.219Jul 25, 2019Close121.344Aug 16, 2019Close132.969Sep 10, 2019Close129.156Oct 2, 2019Close131.125Oct 25, 2019Close126.688Nov 19, 2019Close126.781Dec 12, 2019Close125.531Jan 7, 2020Close125.844Jan 30, 2020Close131.438Feb 24, 2020Close135.625Mar 17, 2020Close139.906Apr 8, 2020Close146.813May 1, 2020Close149.375May 26, 2020Close146.531Jun 17, 2020Close144.750Jul 10, 2020Close148.906Aug 3, 2020Close151.563Aug 25, 2020Close147.656Sep 17, 2020Close147.313Oct 9, 2020Close144.313Nov 3, 2020Close142.313Nov 27, 2020Close143.969Dec 21, 2020Close141.469Jan 14, 2021Close136.750Feb 8, 2021Close134.875Mar 3, 2021Close128.094Mar 25, 2021Close125.750Apr 16, 2021Close127.313May 10, 2021Close126.313Jun 2, 2021Close126.000Jun 24, 2021Close129.281Jul 19, 2021Close135.125Aug 10, 2021Close131.844Sep 1, 2021Close133.188Sep 24, 2021Close131.344Oct 19, 2021Close128.500Nov 10, 2021Close130.000Dec 6, 2021Close132.469Dec 29, 2021Close129.500Jan 21, 2022Close126.500Feb 14, 2022Close122.188Mar 9, 2022Close121.750Mar 31, 2022Close117.813Apr 25, 2022Close109.875May 17, 2022Close105.531Jun 9, 2022Close104.750Jul 5, 2022Close106.844Jul 27, 2022Close107.656Aug 18, 2022Close106.219Sep 12, 2022Close100.156Oct 4, 2022Close97.406Oct 27, 2022Close92.656Nov 21, 2022Close95.000Dec 14, 2022Close100.406Jan 9, 2023Close99.406Feb 1, 2023Close101.813Feb 24, 2023Close95.625Mar 20, 2023Close99.781Apr 11, 2023Close100.719May 3, 2023Close100.281May 25, 2023Close95.125Jun 20, 2023Close97.219Jul 13, 2023Close96.531Aug 4, 2023Close92.906Aug 28, 2023Close91.469Sep 20, 2023Close90.250Oct 13, 2023Close85.688Nov 6, 2023Close85.531Nov 29, 2023Close89.719Dec 21, 2023Close94.906Jan 17, 2024Close92.219Feb 8, 2024Close91.594Mar 4, 2024Close91.438Mar 26, 2024Close91.469Apr 17, 2024Close87.781May 9, 2024Close89.313Jun 3, 2024Close90.094Jun 26, 2024Close91.188Jul 19, 2024Close91.313Aug 12, 2024Close94.813Sep 4, 2024Close96.563Sep 26, 2024Close96.375Oct 21, 2024Close91.813Nov 13, 2024Close89.531Dec 6, 2024Close92.969Dec 31, 2024Close88.000Jan 24, 2025Close87.344Feb 18, 2025Close88.531Mar 12, 2025Close90.250Apr 3, 2025Close92.438Apr 25, 2025Close89.500May 19, 2025Close87.375Jun 11, 2025Close88.000Jul 7, 2025Close87.875Jul 29, 2025Close88.969Aug 20, 2025Close88.906Sep 12, 2025Close91.406Oct 6, 2025Close90.438Oct 29, 2025Close91.938Nov 21, 2025Close91.219Dec 16, 2025Close90.219Jan 9, 2026Close90.625Feb 3, 2026Close89.656Feb 26, 2026Close92.313Mar 20, 2026Close88.188Apr 13, 2026Close89.469May 5, 2026Close88.406May 28, 2026Close88.406Jun 22, 2026Close88.469Jul 15, 2026Close87.656Aug 6, 2026Close86.281Aug 28, 2026Close86.438Sep 9, 2026Close85.750
The most recent 20 trading days of prices for 912810QS0.
DateBidOfferClose
Sep 9, 202685.59485.53185.750
Sep 8, 202686.15686.09486.000
Sep 4, 202686.21986.15686.094
Sep 3, 202686.32886.28186.125
Sep 2, 202685.85985.81385.875
Sep 1, 202686.15686.09485.844
Aug 31, 202686.10986.06386.156
Aug 28, 202686.75086.68886.438
Aug 27, 202686.95386.90686.750
Aug 26, 202686.95386.90686.844
Aug 25, 202687.01686.96987.031
Aug 24, 202686.62586.56386.438
Aug 21, 202686.14186.09486.000
Aug 20, 202686.32886.28186.469
Aug 19, 202686.71986.65686.813
Aug 18, 202685.85985.81385.938
Aug 17, 202685.95385.90685.688
Aug 14, 202686.14186.09486.094
Aug 13, 202686.59486.53186.594
Aug 12, 202686.32886.28186.156

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.

Auction history for 912810QS0.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Aug 11, 2011Aug 15, 2011New issue$16.0bn$16.5bn2.08x3.750%
Sep 14, 2011Sep 15, 2011Reopening$13.0bn$13.0bn2.85x3.310%
Oct 13, 2011Oct 17, 2011Reopening$13.0bn$13.0bn2.94x3.120%

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.