Treasury bond

912810QZ4 · 3.125% due February 15, 2043

Original term
30-Year
Maturity
Feb 15, 2043
Coupon
3.125%
Pays
Semi-Annual
Dated
Feb 15, 2013
First coupon
Aug 15, 2013
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$42.00bn
Held stripped
$4.48bn
Share stripped
10.66%

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
5.238%
Modified duration
12.034 yr
DV01
0.0928
Convexity
179.597
Dirty price
77.127

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 10 of twelve buckets, summing to 12.268 years against a modified duration of 12.034.

Against the fitted curve

Priced 2.1 bp cheap to the curve on that day, 19.66 cents per 100 of face.

That is -1.13 standard deviations from its own typical residual.

Yield to maturity, 3,392 observations

1%2%3%4%5%6%Feb 15, 2013Sep 9, 2026Feb 15, 2013Yield to maturity3.180%Mar 11, 2013Yield to maturity3.256%Apr 2, 2013Yield to maturity3.102%Apr 23, 2013Yield to maturity2.900%May 14, 2013Yield to maturity3.152%Jun 5, 2013Yield to maturity3.238%Jun 26, 2013Yield to maturity3.573%Jul 18, 2013Yield to maturity3.620%Aug 8, 2013Yield to maturity3.659%Aug 29, 2013Yield to maturity3.716%Sep 20, 2013Yield to maturity3.789%Oct 11, 2013Yield to maturity3.757%Nov 4, 2013Yield to maturity3.716%Nov 26, 2013Yield to maturity3.815%Dec 18, 2013Yield to maturity3.922%Jan 10, 2014Yield to maturity3.813%Feb 3, 2014Yield to maturity3.561%Feb 25, 2014Yield to maturity3.667%Mar 18, 2014Yield to maturity3.626%Apr 8, 2014Yield to maturity3.544%Apr 30, 2014Yield to maturity3.464%May 21, 2014Yield to maturity3.404%Jun 12, 2014Yield to maturity3.396%Jul 3, 2014Yield to maturity3.460%Jul 25, 2014Yield to maturity3.231%Aug 15, 2014Yield to maturity3.127%Sep 8, 2014Yield to maturity3.223%Sep 30, 2014Yield to maturity3.206%Oct 22, 2014Yield to maturity3.005%Nov 13, 2014Yield to maturity3.078%Dec 8, 2014Yield to maturity2.897%Dec 30, 2014Yield to maturity2.757%Jan 22, 2015Yield to maturity2.446%Feb 12, 2015Yield to maturity2.576%Mar 6, 2015Yield to maturity2.826%Mar 27, 2015Yield to maturity2.524%Apr 17, 2015Yield to maturity2.503%May 8, 2015Yield to maturity2.896%Jun 1, 2015Yield to maturity2.960%Jun 22, 2015Yield to maturity3.178%Jul 14, 2015Yield to maturity3.211%Aug 4, 2015Yield to maturity2.895%Aug 25, 2015Yield to maturity2.850%Sep 16, 2015Yield to maturity3.082%Oct 7, 2015Yield to maturity2.883%Oct 29, 2015Yield to maturity2.947%Nov 20, 2015Yield to maturity3.008%Dec 14, 2015Yield to maturity2.930%Jan 6, 2016Yield to maturity2.906%Jan 28, 2016Yield to maturity2.750%Feb 19, 2016Yield to maturity2.543%Mar 11, 2016Yield to maturity2.692%Apr 4, 2016Yield to maturity2.547%Apr 25, 2016Yield to maturity2.668%May 16, 2016Yield to maturity2.531%Jun 7, 2016Yield to maturity2.468%Jun 28, 2016Yield to maturity2.197%Jul 20, 2016Yield to maturity2.238%Aug 10, 2016Yield to maturity2.164%Aug 31, 2016Yield to maturity2.181%Sep 22, 2016Yield to maturity2.294%Oct 14, 2016Yield to maturity2.506%Nov 4, 2016Yield to maturity2.511%Nov 29, 2016Yield to maturity2.928%Dec 20, 2016Yield to maturity3.148%Jan 12, 2017Yield to maturity2.937%Feb 3, 2017Yield to maturity3.095%Feb 27, 2017Yield to maturity2.981%Mar 20, 2017Yield to maturity3.083%Apr 10, 2017Yield to maturity2.980%May 2, 2017Yield to maturity2.954%May 23, 2017Yield to maturity2.927%Jun 14, 2017Yield to maturity2.763%Jul 6, 2017Yield to maturity2.872%Jul 27, 2017Yield to maturity2.894%Aug 17, 2017Yield to maturity2.738%Sep 8, 2017Yield to maturity2.629%Sep 29, 2017Yield to maturity2.823%Oct 23, 2017Yield to maturity2.848%Nov 13, 2017Yield to maturity2.831%Dec 5, 2017Yield to maturity2.702%Dec 27, 2017Yield to maturity2.725%Jan 19, 2018Yield to maturity2.889%Feb 9, 2018Yield to maturity3.116%Mar 5, 2018Yield to maturity3.138%Mar 26, 2018Yield to maturity3.062%Apr 17, 2018Yield to maturity2.978%May 8, 2018Yield to maturity3.110%May 30, 2018Yield to maturity2.997%Jun 20, 2018Yield to maturity3.056%Jul 12, 2018Yield to maturity2.945%Aug 2, 2018Yield to maturity3.116%Aug 23, 2018Yield to maturity2.963%Sep 14, 2018Yield to maturity3.129%Oct 5, 2018Yield to maturity3.402%Oct 29, 2018Yield to maturity3.321%Nov 20, 2018Yield to maturity3.311%Dec 13, 2018Yield to maturity3.151%Jan 7, 2019Yield to maturity2.982%Jan 29, 2019Yield to maturity3.022%Feb 20, 2019Yield to maturity2.971%Mar 13, 2019Yield to maturity2.978%Apr 3, 2019Yield to maturity2.893%Apr 25, 2019Yield to maturity2.904%May 16, 2019Yield to maturity2.796%Jun 7, 2019Yield to maturity2.524%Jun 28, 2019Yield to maturity2.476%Jul 22, 2019Yield to maturity2.522%Aug 12, 2019Yield to maturity2.071%Sep 3, 2019Yield to maturity1.900%Sep 24, 2019Yield to maturity2.052%Oct 16, 2019Yield to maturity2.195%Nov 6, 2019Yield to maturity2.269%Nov 29, 2019Yield to maturity2.182%Dec 20, 2019Yield to maturity2.325%Jan 14, 2020Yield to maturity2.250%Feb 5, 2020Yield to maturity2.111%Feb 27, 2020Yield to maturity1.756%Mar 19, 2020Yield to maturity1.812%Apr 9, 2020Yield to maturity1.284%May 1, 2020Yield to maturity1.210%May 22, 2020Yield to maturity1.271%Jun 15, 2020Yield to maturity1.354%Jul 7, 2020Yield to maturity1.265%Jul 28, 2020Yield to maturity1.107%Aug 18, 2020Yield to maturity1.263%Sep 9, 2020Yield to maturity1.304%Sep 30, 2020Yield to maturity1.293%Oct 22, 2020Yield to maturity1.482%Nov 13, 2020Yield to maturity1.457%Dec 7, 2020Yield to maturity1.509%Dec 29, 2020Yield to maturity1.499%Jan 21, 2021Yield to maturity1.700%Feb 11, 2021Yield to maturity1.778%Mar 5, 2021Yield to maturity2.182%Mar 26, 2021Yield to maturity2.278%Apr 16, 2021Yield to maturity2.158%May 7, 2021Yield to maturity2.176%May 28, 2021Yield to maturity2.186%Jun 21, 2021Yield to maturity2.055%Jul 13, 2021Yield to maturity1.972%Aug 3, 2021Yield to maturity1.772%Aug 24, 2021Yield to maturity1.827%Sep 15, 2021Yield to maturity1.796%Oct 6, 2021Yield to maturity2.018%Oct 28, 2021Yield to maturity1.962%Nov 19, 2021Yield to maturity1.952%Dec 13, 2021Yield to maturity1.858%Jan 4, 2022Yield to maturity2.100%Jan 26, 2022Yield to maturity2.232%Feb 16, 2022Yield to maturity2.430%Mar 10, 2022Yield to maturity2.504%Mar 31, 2022Yield to maturity2.632%Apr 22, 2022Yield to maturity3.189%May 13, 2022Yield to maturity3.369%Jun 6, 2022Yield to maturity3.470%Jun 28, 2022Yield to maturity3.609%Jul 20, 2022Yield to maturity3.489%Aug 10, 2022Yield to maturity3.341%Aug 31, 2022Yield to maturity3.605%Sep 22, 2022Yield to maturity3.988%Oct 14, 2022Yield to maturity4.351%Nov 4, 2022Yield to maturity4.575%Nov 29, 2022Yield to maturity4.102%Dec 20, 2022Yield to maturity4.005%Jan 12, 2023Yield to maturity3.779%Feb 3, 2023Yield to maturity3.807%Feb 27, 2023Yield to maturity4.162%Mar 20, 2023Yield to maturity3.887%Apr 10, 2023Yield to maturity3.785%May 1, 2023Yield to maturity3.974%May 22, 2023Yield to maturity4.124%Jun 13, 2023Yield to maturity4.150%Jul 6, 2023Yield to maturity4.272%Jul 27, 2023Yield to maturity4.298%Aug 17, 2023Yield to maturity4.619%Sep 8, 2023Yield to maturity4.569%Sep 29, 2023Yield to maturity4.976%Oct 23, 2023Yield to maturity5.249%Nov 13, 2023Yield to maturity4.990%Dec 5, 2023Yield to maturity4.534%Dec 27, 2023Yield to maturity4.141%Jan 19, 2024Yield to maturity4.516%Feb 9, 2024Yield to maturity4.519%Mar 4, 2024Yield to maturity4.528%Mar 25, 2024Yield to maturity4.548%Apr 15, 2024Yield to maturity4.890%May 6, 2024Yield to maturity4.758%May 28, 2024Yield to maturity4.785%Jun 18, 2024Yield to maturity4.496%Jul 11, 2024Yield to maturity4.533%Aug 1, 2024Yield to maturity4.360%Aug 22, 2024Yield to maturity4.248%Sep 13, 2024Yield to maturity4.069%Oct 4, 2024Yield to maturity4.333%Oct 28, 2024Yield to maturity4.624%Nov 19, 2024Yield to maturity4.689%Dec 11, 2024Yield to maturity4.585%Jan 3, 2025Yield to maturity4.907%Jan 27, 2025Yield to maturity4.844%Feb 18, 2025Yield to maturity4.839%Mar 11, 2025Yield to maturity4.649%Apr 1, 2025Yield to maturity4.556%Apr 22, 2025Yield to maturity4.934%May 13, 2025Yield to maturity4.994%Jun 4, 2025Yield to maturity4.903%Jun 26, 2025Yield to maturity4.815%Jul 18, 2025Yield to maturity5.003%Aug 8, 2025Yield to maturity4.824%Aug 29, 2025Yield to maturity4.859%Sep 22, 2025Yield to maturity4.720%Oct 14, 2025Yield to maturity4.568%Nov 4, 2025Yield to maturity4.625%Nov 26, 2025Yield to maturity4.578%Dec 18, 2025Yield to maturity4.736%Jan 12, 2026Yield to maturity4.735%Feb 3, 2026Yield to maturity4.813%Feb 25, 2026Yield to maturity4.597%Mar 18, 2026Yield to maturity4.828%Apr 8, 2026Yield to maturity4.835%Apr 29, 2026Yield to maturity4.944%May 20, 2026Yield to maturity5.087%Jun 11, 2026Yield to maturity4.918%Jul 6, 2026Yield to maturity4.956%Jul 27, 2026Yield to maturity5.117%Aug 17, 2026Yield to maturity5.263%Sep 8, 2026Yield to maturity5.218%Sep 9, 2026Yield to maturity5.238%

Price history

3,392 trading days to Sep 9, 2026

6080100120140160Feb 15, 2013Sep 9, 2026Feb 15, 2013Close98.938Mar 11, 2013Close97.500Apr 2, 2013Close100.438Apr 23, 2013Close104.469May 14, 2013Close99.469Jun 5, 2013Close97.844Jun 26, 2013Close91.844Jul 18, 2013Close91.063Aug 8, 2013Close90.406Aug 29, 2013Close89.469Sep 20, 2013Close88.281Oct 11, 2013Close88.813Nov 4, 2013Close89.500Nov 26, 2013Close87.906Dec 18, 2013Close86.219Jan 10, 2014Close87.969Feb 3, 2014Close92.156Feb 25, 2014Close90.375Mar 18, 2014Close91.063Apr 8, 2014Close92.469Apr 30, 2014Close93.844May 21, 2014Close94.906Jun 12, 2014Close95.063Jul 3, 2014Close93.938Jul 25, 2014Close98.031Aug 15, 2014Close99.969Sep 8, 2014Close98.188Sep 30, 2014Close98.500Oct 22, 2014Close102.281Nov 13, 2014Close100.875Dec 8, 2014Close104.375Dec 30, 2014Close107.156Jan 22, 2015Close113.719Feb 12, 2015Close110.906Mar 6, 2015Close105.750Mar 27, 2015Close111.969Apr 17, 2015Close112.406May 8, 2015Close104.344Jun 1, 2015Close103.094Jun 22, 2015Close99.031Jul 14, 2015Close98.438Aug 4, 2015Close104.344Aug 25, 2015Close105.219Sep 16, 2015Close100.781Oct 7, 2015Close104.563Oct 29, 2015Close103.313Nov 20, 2015Close102.156Dec 14, 2015Close103.625Jan 6, 2016Close104.094Jan 28, 2016Close107.125Feb 19, 2016Close111.313Mar 11, 2016Close108.250Apr 4, 2016Close111.188Apr 25, 2016Close108.719May 16, 2016Close111.500Jun 7, 2016Close112.781Jun 28, 2016Close118.625Jul 20, 2016Close117.688Aug 10, 2016Close119.313Aug 31, 2016Close118.906Sep 22, 2016Close116.375Oct 14, 2016Close111.875Nov 4, 2016Close111.750Nov 29, 2016Close103.594Dec 20, 2016Close99.594Jan 12, 2017Close103.406Feb 3, 2017Close100.531Feb 27, 2017Close102.594Mar 20, 2017Close100.750Apr 10, 2017Close102.594May 2, 2017Close103.063May 23, 2017Close103.563Jun 14, 2017Close106.625Jul 6, 2017Close104.563Jul 27, 2017Close104.156Aug 17, 2017Close107.063Sep 8, 2017Close109.156Sep 29, 2017Close105.438Oct 23, 2017Close104.969Nov 13, 2017Close105.281Dec 5, 2017Close107.688Dec 27, 2017Close107.250Jan 19, 2018Close104.188Feb 9, 2018Close100.156Mar 5, 2018Close99.781Mar 26, 2018Close101.094Apr 17, 2018Close102.563May 8, 2018Close100.250May 30, 2018Close102.219Jun 20, 2018Close101.188Jul 12, 2018Close103.125Aug 2, 2018Close100.156Aug 23, 2018Close102.813Sep 14, 2018Close99.938Oct 5, 2018Close95.438Oct 29, 2018Close96.750Nov 20, 2018Close96.906Dec 13, 2018Close99.563Jan 7, 2019Close102.438Jan 29, 2019Close101.750Feb 20, 2019Close102.625Mar 13, 2019Close102.500Apr 3, 2019Close103.969Apr 25, 2019Close103.781May 16, 2019Close105.688Jun 7, 2019Close110.656Jun 28, 2019Close111.563Jul 22, 2019Close110.656Aug 12, 2019Close119.531Sep 3, 2019Close123.094Sep 24, 2019Close119.844Oct 16, 2019Close116.906Nov 6, 2019Close115.406Nov 29, 2019Close117.094Dec 20, 2019Close114.250Jan 14, 2020Close115.688Feb 5, 2020Close118.406Feb 27, 2020Close125.781Mar 19, 2020Close124.531Apr 9, 2020Close136.344May 1, 2020Close138.031May 22, 2020Close136.500Jun 15, 2020Close134.469Jul 7, 2020Close136.469Jul 28, 2020Close140.156Aug 18, 2020Close136.344Sep 9, 2020Close135.313Sep 30, 2020Close135.500Oct 22, 2020Close131.125Nov 13, 2020Close131.594Dec 7, 2020Close130.375Dec 29, 2020Close130.531Jan 21, 2021Close126.125Feb 11, 2021Close124.438Mar 5, 2021Close116.375Mar 26, 2021Close114.531Apr 16, 2021Close116.750May 7, 2021Close116.375May 28, 2021Close116.156Jun 21, 2021Close118.625Jul 13, 2021Close120.188Aug 3, 2021Close124.125Aug 24, 2021Close122.969Sep 15, 2021Close123.531Oct 6, 2021Close119.125Oct 28, 2021Close120.156Nov 19, 2021Close120.313Dec 13, 2021Close122.094Jan 4, 2022Close117.406Jan 26, 2022Close114.938Feb 16, 2022Close111.375Mar 10, 2022Close110.063Mar 31, 2022Close107.875Apr 22, 2022Close99.031May 13, 2022Close96.375Jun 6, 2022Close94.938Jun 28, 2022Close93.000Jul 20, 2022Close94.688Aug 10, 2022Close96.813Aug 31, 2022Close93.094Sep 22, 2022Close88.031Oct 14, 2022Close83.563Nov 4, 2022Close80.969Nov 29, 2022Close86.656Dec 20, 2022Close87.906Jan 12, 2023Close90.844Feb 3, 2023Close90.500Feb 27, 2023Close86.031Mar 20, 2023Close89.500Apr 10, 2023Close90.844May 1, 2023Close88.438May 22, 2023Close86.594Jun 13, 2023Close86.313Jul 6, 2023Close84.875Jul 27, 2023Close84.594Aug 17, 2023Close80.938Sep 8, 2023Close81.531Sep 29, 2023Close77.156Oct 23, 2023Close74.406Nov 13, 2023Close77.094Dec 5, 2023Close82.063Dec 27, 2023Close86.656Jan 19, 2024Close82.344Feb 9, 2024Close82.344Mar 4, 2024Close82.281Mar 25, 2024Close82.094Apr 15, 2024Close78.438May 6, 2024Close79.875May 28, 2024Close79.625Jun 18, 2024Close82.813Jul 11, 2024Close82.438Aug 1, 2024Close84.406Aug 22, 2024Close85.719Sep 13, 2024Close87.844Oct 4, 2024Close84.813Oct 28, 2024Close81.625Nov 19, 2024Close80.969Dec 11, 2024Close82.125Jan 3, 2025Close78.781Jan 27, 2025Close79.469Feb 18, 2025Close79.563Mar 11, 2025Close81.594Apr 1, 2025Close82.625Apr 22, 2025Close78.719May 13, 2025Close78.156Jun 4, 2025Close79.125Jun 26, 2025Close80.063Jul 18, 2025Close78.219Aug 8, 2025Close80.063Aug 29, 2025Close79.750Sep 22, 2025Close81.219Oct 14, 2025Close82.844Nov 4, 2025Close82.281Nov 26, 2025Close82.813Dec 18, 2025Close81.219Jan 12, 2026Close81.281Feb 3, 2026Close80.531Feb 25, 2026Close82.781Mar 18, 2026Close80.469Apr 8, 2026Close80.438Apr 29, 2026Close79.406May 20, 2026Close78.063Jun 11, 2026Close79.750Jul 6, 2026Close79.438Jul 27, 2026Close77.938Aug 17, 2026Close76.625Sep 8, 2026Close77.094Sep 9, 2026Close76.906
The most recent 20 trading days of prices for 912810QZ4.
DateBidOfferClose
Sep 9, 202676.71976.65676.906
Sep 8, 202677.29777.25077.094
Sep 4, 202677.32877.28177.188
Sep 3, 202677.42277.37577.219
Sep 2, 202676.98476.93876.969
Sep 1, 202677.26677.21976.938
Aug 31, 202677.17277.12577.250
Aug 28, 202677.84477.78177.531
Aug 27, 202678.01677.96977.781
Aug 26, 202677.96977.90677.906
Aug 25, 202678.04778.00078.063
Aug 24, 202677.65677.59477.500
Aug 21, 202677.20377.15677.063
Aug 20, 202677.35977.31377.469
Aug 19, 202677.73477.68877.813
Aug 18, 202676.79776.75076.875
Aug 17, 202676.90676.84476.625
Aug 14, 202677.07877.03177.063
Aug 13, 202677.57877.53177.563
Aug 12, 202677.31377.25077.125

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 912810QZ4.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Feb 14, 2013Feb 15, 2013New issue$16.0bn$16.0bn2.74x3.180%
Mar 14, 2013Mar 15, 2013Reopening$13.0bn$13.0bn2.43x3.248%
Apr 11, 2013Apr 15, 2013Reopening$13.0bn$13.0bn2.49x2.998%

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.

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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.