Treasury bond

912810FF0 · 5.25% due November 15, 2028

Original term
30-Year
Maturity
Nov 15, 2028
Coupon
5.250%
Pays
Semi-Annual
Dated
Nov 15, 1998
First coupon
May 15, 1999
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$10.95bn
Held stripped
$711.5m
Share stripped
6.50%

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
4.501%
Modified duration
2.011 yr
DV01
0.0208
Convexity
5.190
Dirty price
103.215

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 5 of twelve buckets, summing to 2.057 years against a modified duration of 2.011.

Against the fitted curve

Priced 3.8 bp cheap to the curve on that day, 7.79 cents per 100 of face.

That is -1.05 standard deviations from its own typical residual.

Yield to maturity, 4,508 observations

0%1%2%3%4%5%6%Sep 2, 2008Sep 9, 2026Sep 2, 2008Yield to maturity4.405%Sep 29, 2008Yield to maturity4.275%Oct 27, 2008Yield to maturity4.441%Nov 24, 2008Yield to maturity4.022%Dec 22, 2008Yield to maturity2.939%Jan 21, 2009Yield to maturity3.535%Feb 18, 2009Yield to maturity3.784%Mar 17, 2009Yield to maturity3.995%Apr 14, 2009Yield to maturity3.733%May 11, 2009Yield to maturity4.140%Jun 8, 2009Yield to maturity4.664%Jul 6, 2009Yield to maturity4.294%Jul 31, 2009Yield to maturity4.292%Aug 27, 2009Yield to maturity4.189%Sep 24, 2009Yield to maturity4.143%Oct 22, 2009Yield to maturity4.219%Nov 19, 2009Yield to maturity4.186%Dec 17, 2009Yield to maturity4.295%Jan 15, 2010Yield to maturity4.468%Feb 12, 2010Yield to maturity4.501%Mar 12, 2010Yield to maturity4.453%Apr 8, 2010Yield to maturity4.586%May 5, 2010Yield to maturity4.212%Jun 1, 2010Yield to maturity4.007%Jun 28, 2010Yield to maturity3.793%Jul 26, 2010Yield to maturity3.782%Aug 20, 2010Yield to maturity3.325%Sep 17, 2010Yield to maturity3.532%Oct 15, 2010Yield to maturity3.527%Nov 12, 2010Yield to maturity3.776%Dec 10, 2010Yield to maturity4.136%Jan 7, 2011Yield to maturity4.193%Feb 4, 2011Yield to maturity4.462%Mar 4, 2011Yield to maturity4.278%Mar 31, 2011Yield to maturity4.236%Apr 28, 2011Yield to maturity4.107%May 25, 2011Yield to maturity3.903%Jun 22, 2011Yield to maturity3.823%Jul 20, 2011Yield to maturity3.813%Aug 16, 2011Yield to maturity3.099%Sep 13, 2011Yield to maturity2.786%Oct 11, 2011Yield to maturity2.791%Nov 7, 2011Yield to maturity2.682%Dec 6, 2011Yield to maturity2.712%Jan 4, 2012Yield to maturity2.628%Feb 1, 2012Yield to maturity2.540%Feb 29, 2012Yield to maturity2.635%Mar 27, 2012Yield to maturity2.863%Apr 23, 2012Yield to maturity2.600%May 18, 2012Yield to maturity2.272%Jun 15, 2012Yield to maturity2.158%Jul 13, 2012Yield to maturity2.074%Aug 9, 2012Yield to maturity2.271%Sep 6, 2012Yield to maturity2.262%Oct 3, 2012Yield to maturity2.255%Nov 1, 2012Yield to maturity2.336%Nov 30, 2012Yield to maturity2.200%Dec 28, 2012Yield to maturity2.303%Jan 28, 2013Yield to maturity2.595%Feb 25, 2013Yield to maturity2.501%Mar 22, 2013Yield to maturity2.539%Apr 19, 2013Yield to maturity2.282%May 16, 2013Yield to maturity2.467%Jun 13, 2013Yield to maturity2.773%Jul 11, 2013Yield to maturity3.147%Aug 7, 2013Yield to maturity3.183%Sep 4, 2013Yield to maturity3.378%Oct 1, 2013Yield to maturity3.178%Oct 29, 2013Yield to maturity3.051%Nov 26, 2013Yield to maturity3.252%Dec 24, 2013Yield to maturity3.455%Jan 23, 2014Yield to maturity3.223%Feb 20, 2014Yield to maturity3.215%Mar 19, 2014Yield to maturity3.173%Apr 15, 2014Yield to maturity3.005%May 13, 2014Yield to maturity2.948%Jun 10, 2014Yield to maturity2.977%Jul 8, 2014Yield to maturity2.897%Aug 4, 2014Yield to maturity2.819%Aug 29, 2014Yield to maturity2.626%Sep 29, 2014Yield to maturity2.759%Oct 27, 2014Yield to maturity2.547%Nov 25, 2014Yield to maturity2.514%Dec 23, 2014Yield to maturity2.447%Jan 22, 2015Yield to maturity2.102%Feb 19, 2015Yield to maturity2.367%Mar 18, 2015Yield to maturity2.153%Apr 14, 2015Yield to maturity2.126%May 11, 2015Yield to maturity2.518%Jun 8, 2015Yield to maturity2.593%Jul 6, 2015Yield to maturity2.502%Jul 31, 2015Yield to maturity2.346%Aug 27, 2015Yield to maturity2.394%Sep 24, 2015Yield to maturity2.319%Oct 22, 2015Yield to maturity2.246%Nov 19, 2015Yield to maturity2.449%Dec 17, 2015Yield to maturity2.398%Jan 15, 2016Yield to maturity2.207%Feb 12, 2016Yield to maturity1.926%Mar 11, 2016Yield to maturity2.148%Apr 8, 2016Yield to maturity1.871%May 5, 2016Yield to maturity1.907%Jun 2, 2016Yield to maturity1.939%Jun 29, 2016Yield to maturity1.610%Jul 27, 2016Yield to maturity1.619%Aug 23, 2016Yield to maturity1.649%Sep 20, 2016Yield to maturity1.804%Oct 18, 2016Yield to maturity1.868%Nov 15, 2016Yield to maturity2.366%Dec 13, 2016Yield to maturity2.619%Jan 11, 2017Yield to maturity2.473%Feb 8, 2017Yield to maturity2.439%Mar 8, 2017Yield to maturity2.648%Apr 4, 2017Yield to maturity2.435%May 2, 2017Yield to maturity2.373%May 30, 2017Yield to maturity2.297%Jun 26, 2017Yield to maturity2.189%Jul 24, 2017Yield to maturity2.306%Aug 18, 2017Yield to maturity2.245%Sep 15, 2017Yield to maturity2.238%Oct 13, 2017Yield to maturity2.294%Nov 9, 2017Yield to maturity2.342%Dec 7, 2017Yield to maturity2.393%Jan 5, 2018Yield to maturity2.488%Feb 2, 2018Yield to maturity2.838%Mar 2, 2018Yield to maturity2.882%Mar 29, 2018Yield to maturity2.749%Apr 26, 2018Yield to maturity3.000%May 23, 2018Yield to maturity3.016%Jun 20, 2018Yield to maturity2.931%Jul 18, 2018Yield to maturity2.886%Aug 14, 2018Yield to maturity2.902%Sep 11, 2018Yield to maturity2.984%Oct 9, 2018Yield to maturity3.210%Nov 5, 2018Yield to maturity3.212%Dec 4, 2018Yield to maturity2.925%Jan 3, 2019Yield to maturity2.579%Jan 31, 2019Yield to maturity2.637%Feb 28, 2019Yield to maturity2.738%Mar 27, 2019Yield to maturity2.391%Apr 24, 2019Yield to maturity2.522%May 21, 2019Yield to maturity2.433%Jun 18, 2019Yield to maturity2.049%Jul 16, 2019Yield to maturity2.096%Aug 12, 2019Yield to maturity1.619%Sep 9, 2019Yield to maturity1.614%Oct 4, 2019Yield to maturity1.502%Nov 1, 2019Yield to maturity1.697%Dec 2, 2019Yield to maturity1.816%Dec 30, 2019Yield to maturity1.868%Jan 28, 2020Yield to maturity1.598%Feb 25, 2020Yield to maturity1.285%Mar 23, 2020Yield to maturity0.796%Apr 20, 2020Yield to maturity0.577%May 15, 2020Yield to maturity0.585%Jun 12, 2020Yield to maturity0.601%Jul 10, 2020Yield to maturity0.548%Aug 6, 2020Yield to maturity0.437%Sep 2, 2020Yield to maturity0.518%Sep 30, 2020Yield to maturity0.527%Oct 28, 2020Yield to maturity0.620%Nov 25, 2020Yield to maturity0.708%Dec 23, 2020Yield to maturity0.741%Jan 22, 2021Yield to maturity0.846%Feb 19, 2021Yield to maturity1.053%Mar 18, 2021Yield to maturity1.402%Apr 14, 2021Yield to maturity1.356%May 11, 2021Yield to maturity1.317%Jun 8, 2021Yield to maturity1.234%Jul 6, 2021Yield to maturity1.134%Aug 2, 2021Yield to maturity0.946%Aug 27, 2021Yield to maturity1.072%Sep 24, 2021Yield to maturity1.230%Oct 22, 2021Yield to maturity1.449%Nov 19, 2021Yield to maturity1.407%Dec 17, 2021Yield to maturity1.312%Jan 14, 2022Yield to maturity1.695%Feb 11, 2022Yield to maturity1.922%Mar 11, 2022Yield to maturity2.002%Apr 7, 2022Yield to maturity2.745%May 5, 2022Yield to maturity3.088%Jun 2, 2022Yield to maturity2.981%Jun 30, 2022Yield to maturity3.069%Jul 28, 2022Yield to maturity2.747%Aug 24, 2022Yield to maturity3.275%Sep 21, 2022Yield to maturity3.773%Oct 19, 2022Yield to maturity4.402%Nov 16, 2022Yield to maturity3.934%Dec 14, 2022Yield to maturity3.741%Jan 12, 2023Yield to maturity3.592%Feb 9, 2023Yield to maturity3.887%Mar 9, 2023Yield to maturity4.213%Apr 5, 2023Yield to maturity3.417%May 2, 2023Yield to maturity3.521%May 30, 2023Yield to maturity3.903%Jun 27, 2023Yield to maturity4.099%Jul 25, 2023Yield to maturity4.246%Aug 21, 2023Yield to maturity4.523%Sep 18, 2023Yield to maturity4.541%Oct 16, 2023Yield to maturity4.773%Nov 10, 2023Yield to maturity4.712%Dec 8, 2023Yield to maturity4.311%Jan 8, 2024Yield to maturity4.004%Feb 5, 2024Yield to maturity4.177%Mar 4, 2024Yield to maturity4.270%Mar 29, 2024Yield to maturity4.285%Apr 25, 2024Yield to maturity4.794%May 22, 2024Yield to maturity4.525%Jun 20, 2024Yield to maturity4.327%Jul 18, 2024Yield to maturity4.141%Aug 14, 2024Yield to maturity3.694%Sep 11, 2024Yield to maturity3.481%Oct 8, 2024Yield to maturity3.893%Nov 5, 2024Yield to maturity4.193%Dec 4, 2024Yield to maturity4.123%Jan 2, 2025Yield to maturity4.396%Jan 30, 2025Yield to maturity4.335%Feb 27, 2025Yield to maturity4.147%Mar 26, 2025Yield to maturity4.100%Apr 22, 2025Yield to maturity3.921%May 19, 2025Yield to maturity4.037%Jun 16, 2025Yield to maturity4.031%Jul 15, 2025Yield to maturity4.014%Aug 11, 2025Yield to maturity3.807%Sep 8, 2025Yield to maturity3.531%Oct 3, 2025Yield to maturity3.671%Oct 31, 2025Yield to maturity3.657%Dec 1, 2025Yield to maturity3.607%Dec 29, 2025Yield to maturity3.565%Jan 27, 2026Yield to maturity3.693%Feb 24, 2026Yield to maturity3.522%Mar 23, 2026Yield to maturity3.954%Apr 17, 2026Yield to maturity3.793%May 14, 2026Yield to maturity4.095%Jun 11, 2026Yield to maturity4.154%Jul 10, 2026Yield to maturity4.283%Aug 6, 2026Yield to maturity4.327%Sep 2, 2026Yield to maturity4.462%Sep 9, 2026Yield to maturity4.501%

Price history

4,508 trading days to Sep 9, 2026

100110120130140150Sep 2, 2008Sep 9, 2026Sep 2, 2008Close111.219Sep 29, 2008Close113.063Oct 27, 2008Close110.656Nov 24, 2008Close116.750Dec 22, 2008Close134.625Jan 21, 2009Close124.281Feb 18, 2009Close120.250Mar 17, 2009Close116.969Apr 14, 2009Close120.938May 11, 2009Close114.750Jun 8, 2009Close107.438Jul 6, 2009Close112.469Jul 31, 2009Close112.469Aug 27, 2009Close113.906Sep 24, 2009Close114.531Oct 22, 2009Close113.406Nov 19, 2009Close113.844Dec 17, 2009Close112.281Jan 15, 2010Close109.875Feb 12, 2010Close109.406Mar 12, 2010Close110.031Apr 8, 2010Close108.250May 5, 2010Close113.250Jun 1, 2010Close116.094Jun 28, 2010Close119.156Jul 26, 2010Close119.250Aug 20, 2010Close126.156Sep 17, 2010Close122.875Oct 15, 2010Close122.875Nov 12, 2010Close119.125Dec 10, 2010Close114.000Jan 7, 2011Close113.188Feb 4, 2011Close109.594Mar 4, 2011Close111.969Mar 31, 2011Close112.500Apr 28, 2011Close114.188May 25, 2011Close116.938Jun 22, 2011Close118.000Jul 20, 2011Close118.094Aug 16, 2011Close128.563Sep 13, 2011Close133.438Oct 11, 2011Close133.250Nov 7, 2011Close134.906Dec 6, 2011Close134.281Jan 4, 2012Close135.531Feb 1, 2012Close136.844Feb 29, 2012Close135.156Mar 27, 2012Close131.406Apr 23, 2012Close135.469May 18, 2012Close140.750Jun 15, 2012Close142.531Jul 13, 2012Close143.813Aug 9, 2012Close140.313Sep 6, 2012Close140.313Oct 3, 2012Close140.281Nov 1, 2012Close138.781Nov 30, 2012Close140.844Dec 28, 2012Close139.000Jan 28, 2013Close134.219Feb 25, 2013Close135.531Mar 22, 2013Close134.813Apr 19, 2013Close138.688May 16, 2013Close135.656Jun 13, 2013Close130.906Jul 11, 2013Close125.438Aug 7, 2013Close124.844Sep 4, 2013Close122.094Oct 1, 2013Close124.719Oct 29, 2013Close126.375Nov 26, 2013Close123.531Dec 24, 2013Close120.750Jan 23, 2014Close123.719Feb 20, 2014Close123.719Mar 19, 2014Close124.188Apr 15, 2014Close126.344May 13, 2014Close127.000Jun 10, 2014Close126.500Jul 8, 2014Close127.469Aug 4, 2014Close128.406Aug 29, 2014Close130.938Sep 29, 2014Close128.969Oct 27, 2014Close131.750Nov 25, 2014Close132.063Dec 23, 2014Close132.844Jan 22, 2015Close137.563Feb 19, 2015Close133.625Mar 18, 2015Close136.469Apr 14, 2015Close136.688May 11, 2015Close131.125Jun 8, 2015Close129.969Jul 6, 2015Close131.031Jul 31, 2015Close132.969Aug 27, 2015Close132.188Sep 24, 2015Close133.031Oct 22, 2015Close133.844Nov 19, 2015Close131.000Dec 17, 2015Close131.500Jan 15, 2016Close133.813Feb 12, 2016Close137.406Mar 11, 2016Close134.250Apr 8, 2016Close137.750May 5, 2016Close137.094Jun 2, 2016Close136.469Jun 29, 2016Close140.688Jul 27, 2016Close140.344Aug 23, 2016Close139.719Sep 20, 2016Close137.438Oct 18, 2016Close136.406Nov 15, 2016Close129.969Dec 13, 2016Close126.781Jan 11, 2017Close128.344Feb 8, 2017Close128.594Mar 8, 2017Close126.000Apr 4, 2017Close128.313May 2, 2017Close128.875May 30, 2017Close129.594Jun 26, 2017Close130.688Jul 24, 2017Close129.156Aug 18, 2017Close129.688Sep 15, 2017Close129.594Oct 13, 2017Close128.781Nov 9, 2017Close128.063Dec 7, 2017Close127.344Jan 5, 2018Close126.125Feb 2, 2018Close122.250Mar 2, 2018Close121.656Mar 29, 2018Close122.906Apr 26, 2018Close120.219May 23, 2018Close119.938Jun 20, 2018Close120.656Jul 18, 2018Close120.969Aug 14, 2018Close120.688Sep 11, 2018Close119.750Oct 9, 2018Close117.469Nov 5, 2018Close117.344Dec 4, 2018Close119.938Jan 3, 2019Close123.125Jan 31, 2019Close122.406Feb 28, 2019Close121.281Mar 27, 2019Close124.469Apr 24, 2019Close123.031May 21, 2019Close123.719Jun 18, 2019Close127.250Jul 16, 2019Close126.594Aug 12, 2019Close131.094Sep 9, 2019Close130.906Oct 4, 2019Close131.781Nov 1, 2019Close129.625Dec 2, 2019Close128.250Dec 30, 2019Close127.531Jan 28, 2020Close129.844Feb 25, 2020Close132.594Mar 23, 2020Close137.125Apr 20, 2020Close139.000May 15, 2020Close138.594Jun 12, 2020Close138.094Jul 10, 2020Close138.281Aug 6, 2020Close139.063Sep 2, 2020Close137.938Sep 30, 2020Close137.500Oct 28, 2020Close136.281Nov 25, 2020Close135.125Dec 23, 2020Close134.500Jan 22, 2021Close133.188Feb 19, 2021Close131.063Mar 18, 2021Close127.844Apr 14, 2021Close127.969May 11, 2021Close128.031Jun 8, 2021Close128.438Jul 6, 2021Close128.969Aug 2, 2021Close130.219Aug 27, 2021Close128.906Sep 24, 2021Close127.375Oct 22, 2021Close125.406Nov 19, 2021Close125.469Dec 17, 2021Close125.906Jan 14, 2022Close122.813Feb 11, 2022Close120.969Mar 11, 2022Close120.188Apr 7, 2022Close115.031May 5, 2022Close112.688Jun 2, 2022Close113.219Jun 30, 2022Close112.531Jul 28, 2022Close114.375Aug 24, 2022Close111.031Sep 21, 2022Close108.031Oct 19, 2022Close104.469Nov 16, 2022Close106.969Dec 14, 2022Close107.938Jan 12, 2023Close108.656Feb 9, 2023Close106.969Mar 9, 2023Close105.188Apr 5, 2023Close109.281May 2, 2023Close108.625May 30, 2023Close106.563Jun 27, 2023Close105.500Jul 25, 2023Close104.719Aug 21, 2023Close103.344Sep 18, 2023Close103.219Oct 16, 2023Close102.125Nov 10, 2023Close102.375Dec 8, 2023Close104.125Jan 8, 2024Close105.438Feb 5, 2024Close104.594Mar 4, 2024Close104.125Mar 29, 2024Close104.000Apr 25, 2024Close101.844May 22, 2024Close102.906Jun 20, 2024Close103.656Jul 18, 2024Close104.344Aug 14, 2024Close106.063Sep 11, 2024Close106.813Oct 8, 2024Close105.094Nov 5, 2024Close103.875Dec 4, 2024Close104.063Jan 2, 2025Close103.000Jan 30, 2025Close103.156Feb 27, 2025Close103.750Mar 26, 2025Close103.844Apr 22, 2025Close104.375May 19, 2025Close103.906Jun 16, 2025Close103.844Jul 15, 2025Close103.813Aug 11, 2025Close104.375Sep 8, 2025Close105.125Oct 3, 2025Close104.594Oct 31, 2025Close104.531Dec 1, 2025Close104.563Dec 29, 2025Close104.563Jan 27, 2026Close104.094Feb 24, 2026Close104.438Mar 23, 2026Close103.219Apr 17, 2026Close103.531May 14, 2026Close102.719Jun 11, 2026Close102.500Jul 10, 2026Close102.125Aug 6, 2026Close101.969Sep 2, 2026Close101.625Sep 9, 2026Close101.531
The most recent 20 trading days of prices for 912810FF0.
DateBidOfferClose
Sep 9, 2026101.703101.500101.531
Sep 8, 2026101.797101.625101.594
Sep 4, 2026101.828101.656101.625
Sep 3, 2026101.922101.750101.719
Sep 2, 2026101.813101.625101.625
Sep 1, 2026101.844101.688101.625
Aug 31, 2026101.922101.750101.750
Aug 28, 2026101.969101.750101.719
Aug 27, 2026102.188102.000101.969
Aug 26, 2026102.172102.000102.000
Aug 25, 2026102.219102.031102.063
Aug 24, 2026102.156101.969101.938
Aug 21, 2026102.109101.906101.938
Aug 20, 2026102.234102.031102.063
Aug 19, 2026102.234102.031102.063
Aug 18, 2026102.266102.094102.063
Aug 17, 2026102.281102.094102.063
Aug 14, 2026102.328102.125102.094
Aug 13, 2026102.344102.156102.156
Aug 12, 2026102.266102.063102.031

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.

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 912810FF0.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Nov 5, 1998Nov 16, 1998New issue$10.0bn$10.9bn–5.300%

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.